I had this problem on a 2003 Honda Accord ex v6 AT. Symptoms were Radio, and Dashlights would turn off while driving followed by car stalling for a split second. Headlights would dim or get brighter on acceleration and deceleration like the car is starving for electrons from the alternator (or serpentine belt loose?). The code came up P0685 on a blue driver. The solution so far: 1) Checked the relays under the driver's side. EI main, IG coil, and since I was there Fuel pump. Took them off. Cut a regular house light wire. Somewhat held the relay end to the battery under the hood (Caution the relay is not protected anymore from the fuse box). I heard the relay click, concluding relay was good. 2) Cleaned the grounding wire surfaces around the engine bay from the black and white pictures I referenced on forums. The reference below is the Driver side/Passenger side instead of left and right. Battery negative to Car wall (driver side), Car wall to Transmission (under air filter driver side), Battery positive harness traced to the throttle body (2 small wires)(driver side engine side), Battery positive harness traced to a bracket power steering pump/injectors (Passenger side on the engine), Motor mount to car wall Passenger side near the serpentine belt. 3) After cleaning the grounds and checking the voltage on the battery and alternator the code is gone. The battery grounds are referenced (C101, C102 etc on forums) 4) I got another code for the throttle body P2101. That was because I took the air filter housing off to get at the Grounded wire transmission to the car body. I probably should have cleaned the throttle body but didn't. I'll clean it next weekend. hopefully, that will get rid of the code.
I just want to say you're awesome for actually responding to everyone's questions. Thank you for the video and all the suggestions you've given others! I have a Honda Insight that's throwing this code and am going to check the relays and battery connection (battery is brand new, 1 month old). Thankfully the car isn't stalling but it just started throwing this code so I'm going to try and fix it before anything worse happens. I just paid it off this past month so I'm like... it needs to last me a good long time lol.
Hey RB , I have a 2007 Accord 2.0 . Lightning struck my driver’s side mirror and destroyed it ! Now I don’t have power to my window’s and the engine won’t turn over . What do you suggest ? Love your video , very straightforward !
I found that May positive battery cable was loose, I could pull it off with my hand. Hope this will fix May issue. Car did not ever stall but radio,Navi and meter gages would blink and lose power for a second. If this is not the fix I will move on to replacing the relays. Thanks!
Greetings my friend who specializes wake us up my car when caught in a heavy rain steering wheel resists and brakes too and detail the engine is still running but when you turn off the air conditioning the car starts working again it's a 2.0 2006 but it's still running could be the lambda probe of the discharge or the scanner will be able to locate this fault thanks
my accord when the air conditioning is on when there is heavy rain, it seems to turn off the steering wheel, it stays dim as well as the brake, but it remains on when the air conditioning is turned off, the steering wheel and brake return to normal
I have a 2003 accord 2.4l EX. Car always, always runs rich it smells like burned fuel and intermittently runs lean also to the point car wants to die and has no power?! No codes except p0172 ocasionally which i cleared. It misfires too when climbing hills. Fuel pressure seems good at 50psi when idling and revving in park. Could this be PCM relayed issue since no codes are present?
I have a 07 as well and it was stalling as well. I also have a blinking key light on the dash. I called a key guy to come out but he could not program the key because there wasn’t any communication with the computer. I also had another mechanic try to put his computer up to the car but no communication what do you think I should do. Please help car is just sitting.
If you see this and help out would be great 2008 Acura RDX. P0685 code. Cant figure out wtf is wrong with it. Seems like u have the answer but i cant figure out what exact relays need to be replaced since it has a little bit different layout. Im not a mechanic or anything like that so its hard to figure out
On my '08 TSX I am getting code 83-1 with no lights lit up. It's saying something about my VSA/ABS but I am able to use my VSA with no issues. Will this help solve this issue?
I don’t think this is the area if the light is not on and there are no issues reset and clear the codes if they come back then might want to start repairs
Sorry Sir im from Indonesia i have problem with my 2005 Honda Accord,,,when i try to scann with scann tool and try to enter the PGM-FI ENGINE section it show "error in communicating with the vehicle ecu" so I can't enter the engine system with my scanner,,i try to remove some censor to test if my scanner can find something but still my scanner doesn't find anything even with the censor that i remove....i just replace my ecu with the new one but with the chip price and i don't know if this ecu work or not stupidly....is that problem comes because the ecu its still not working (bad ecu) or something wrong with the wiring cable? because before this my old ecu just drowning into a water because i have problem with the heater and end up being my ecu drowning and need to replace with the new one... thanks 🙏
Is it the same in a 2005 honda accord coupe v6 3.0?? Can't find the ecu/pcm fuse anywhere on the inside of the 2 fuse boxes. (Under hood/ drivers side foot well)
Hey I got a 2004 V6 3.0 Coupe ex as well and I see the blue fuel pump relay but I'm not seeing the other two as well did you ever find the???? My car is doing the exact thing in the video where it shuts off for a couple seconds called the parts stores they don't have them I work at a mechanic shop but they're not open again till Tuesday and I got to figure this out because I work at my other job tomorrow it might be a dealer only option for the other two relays the O'Reilly Auto parts near me has the fuel pump relay but not the other two they can't find them but yeah let me know if you ever found the location of the other two relays please
2004 Honda Accord here code , P0685(1 / 1) Stored ECM/PCM Power Relay Control Circuit/Open DTC Severity 2 of 3 Repair immediately. Car was jolting like I was hitting the breaks, then I loss radio and brake lights, it starts and runs fine now, no more jolting but still no radio or brake lights, any suggestions?
I'm having this same issue but new relays didn't fix it. Cranking and lots of clicking from relays. Also, check engine light doesn't turn on when I turn the key to the on position
Great Video! Liked & Subscribed. I have an '04 Accord EX 4cyl. With this code, also it has a 61-1 Battery voltage malfunction code, is that 61-1 code because of the P0685 code? It cleared & the check engine light has stayed off for half a day so far. This tends to occur when going into the mountains (Elevation 8500+ feet) in Colorado then after going back to Denver, CO (5280 feet) it tends to stop being an issue. I've already replaced the battery, used CRC battery cleaner & tightened the clamps. Can you please elaborate on this issue & the 61-1 code thoroughly. Thank You
When these codes first came on in '17 batrery was replaced, codes cleared & no issue for about a year. Car wouldn't start used CRC cleaner which revealed acid and was thoroughly cleaned with clamps tightened (Fall '18) recently with the 61-1 & P-0685 codes popping up again everything looks good for the battery but may need to CRC clean it again to reveal any acid corrison. Wondering if this RELAY that you mention in your video could last this long without failing completely since Jan '17 til now with this issue?
Here's the exact trouble codes: '04 Accord EX 2.4 4cyl with the following error codes: 61-1 Battery Voltage Malfunction P0685 ECM/PCM Power Relay Control Ckt/Open (Current 135-1) P0685 Engine & Powertrain Control Modules, Power Relay Control Circuit/Open What do these codes tell you? Which relay should I get replaced & do you have the part # please? Thank You
@@amcgee-dl3cj Thanks for your (non) help. Why even reply if you can't advise, brainstorm or share your experience? I have the same issue and was hoping for advise as to where to start. I found this lame a** reply instead. Thanks
Sometimes the lowercase letter l can look like a number one. For example : Multi Port-Fuel Injection or MPFI, specifically these ones ( 3.1 Multi Port FI ) which were visible badges on side fenders of old GM cars from the early to mid 90's cars with the 3.1L V6 motors, such as the Chevy Cavalier Z24.
@@RBTheMechanic thanks for the response🙏 Was there a specific reason that you needed to replace all 3 relays instead of just the one controlling the ECM? I plan on replacing all 3 on my vehicle, I’m just curious if it was because it needed to be done or if It was preventative maintenance because those relays usually go bad at the same time or something?
Hey do you think the ignition relay can affect my cat from completetly shutting off while driving. Currently have the p0685 code but i already changed the f1 relay and 2 weeks later it shut off again. 2003 honda accord
Before replacing ecm change out the relays and check ur battery if it’s more than 3 years old change it and check terminals for corrosions and loose connections
I have a 08 honda accord and my Check engine light would come on here and there.. my car would stall to crank and the code would be for misfiring signals like crankshaft, camshaft and different spark plug positions. So we parted them out and my car would still do it on some days. Now it is completely in limp mode, when it cranks check engine comes on and illuminates car wont go over 5 miles and wont accelerate. I have been told it is my ecm could that be true ?
@EXTREME CHALLENGES yeah I had another car with similar issue it had weak battery and then another can same issue but was bad ground from battery to frame check all that
@@RBTheMechanic im not try to jump start because my car totally shut off..no crank at all..should be before we want to start,all indicator will appear..
Hey wassup I was having the same problem I change all 3 relay and my car still be turn off and back on while driving smh I had that code any suggestions
I'm experiencing a similar issue and I have a P0685 code as well. I replaced the F1 main and ignition coil relays as indicated in the diagram at the end of the video, but not the fuel pump relay. I'm still having issues where the car will decide to stop working for a brief moment while driving and it seems like the whole electrical system just shuts down. Sometimes it happens when I'm driving down the highway and I try to roll down my windows using the power window switches, at which point the power drains and everything starts to shut off and as soon as I release the switches, everything starts to recover. Today, I drove my car and parked it somewhere and came back 15 min later to turn it on and nothing. The car wouldn't respond to my key fob attempting to unlock it. I got not auxiliary power when I initially turned the key. No lights, no ignition nothing. It's as if the battery were disconnected, which it's not. I was going to tow it, but came back an hour later and everything worked fine as normal. Do you think replacing the fuel pump relay also may remedy this? If so why? Thanks for your video. It was very helpful.
I WOULD SUGGUEST TO REPLACE BATTERY AND CHECK AND MAKE SURE SECURE CONNECTION ON BATTERY TERMINALS ALSO CLEAN OFF ALL CORROSION FOLLOW THE GROUND CABLE IT SHOULD BE BOLTED ON TO THE CAR BODY NEAR THE BATTERY WITH 10MM BOLT TAKE THAT OFF CLEAN THE SURFACE IF THE GROUND CABLE LOOKS BAD JUST REPLACE IT
I have a 2004 Honda Accord and I had a fuse out and noticed that I was missing a few fuses so i filled it up with the missing fuses could that cause a problem? I am having the sudden stalling while driving
@@RBTheMechanic do you have a video replacing the flrelay ignition relay and and fuel pump relay or is it easy to take it out. I don't do much work on cars...
My accord is loosing power to the map sensor and tps, cycle the key a couple times and the power comes back and the car will run all day until it is shut off then the problem repeats, it never dies it just runs terrible bc it doesn’t see map or throttle. Sound like a relay or the ecu itself?
Hey brother i just got that code today my car is shutting off for a brief second while i drive i have a honda accord 2011 v6 does this apply to that car?
@@RBTheMechanic i was thinking that i have a little corrosion on the positive connection ill try to clean it off and see if it goes away tomorrow morning but thanks for responding bro you are a life saver 💪🏽thank you soo much
Wassup man I have the same problem 07 2.4 same codes I change all 3 relays and I'm still have the same issue car while driving turn off and on smh any suggestions
@@dmarte9578 it’s not easy code to fix bet definitely check battery connections and negative terminal I had one honda it had bad connectors it cause power loss
I have a 2005 Honda Accord that once or twice a week it’ll shut off for a brief moment like everything flickers on and off, a couple of times it’s shut off completely and locked up on me I had to turn ignition off and on, I replaced the two main pcm relays just wondering if it’s my computer that needs to be switched now or should I replaced the other two relays before? Thank you much help needed please.
Noel Zaldana sure can you scan the can let me know if there are any codes, also check the connections of battery terminals and if you battery is old please change it I have had similar issues on another honda years back it had bad battery get back to me if the car has any codes and try the things I mentioned
I have an 06 Acura TL an I got this code before my car decided to not start again. The mechanic told me that some numbers have to match on ecm before replacing can you please inform me about that ?
Problem still persists even after I changed the relays and I checked the battery and other connector... All connected well... What can you suggest is the cause please ?
I have same problem, sometimes my car wouldn’t start, but I would turn the key again and it would start, and also sometimes the battery would be dead, and I would need a jump. I will change the relays hopefully it will solve the problem.
Warr Datt I think you should change the battery it might just take care of the starting issue some time it doesn’t get enough power and please subscribe
I changed the 3 relays you said and it only took off the “check engine light “,but when I drive it still dies and shows the red battery and red oil dripping on the dashboard,please help
RB The Mechanic yeah you know there’s the little panel that comes off that shows you the little baby fuses but there’s still the trim piece that needs to come out to expose the big boy fuses how you pull the trim out without breaking anyrhing
Free Hhhh oh yeah man I don’t have video on that but you can google so Thing if I get a car sooner or later I will make a video but it shouldn’t be chard
Its Abdu try jump starting some times you think it’s good battery but it dosent have enough power. If that doesn’t work then you maybe have bad starter. Let me know what happned then I can guide u further and have a person crank the car while u look at the belt of the car see if it rotates. Let me know.. please subscribe
Came across this video cos my accord 04 the engine light came on when i scan it theres a p0685 code. I replaced the top middle relay after that the engine light is gone then after 30mins of driving the engine light came on again 😭
I've got a 2007 honda accord se 2.4l engine. It stalls when idling. I've changed the spark plugs, coil packs, air filter and air intake hose. It's will NOT stay running. I don't have a scanner nor the ability to get one. Please help
I have a Honda Accord 2007. I gave someone a jump about a week ago. Now every time I start my car up I have to press the Honda code the dealership gave me and the radio will shut off after 3 minutes and I’ll have to enter the code every time. Any suggestions as to what is wrong?
I checked the fuses however the radio fuse is not blown. Is there a possibility that that fuse has a short and still needs to be replaced? When I was giving the jump the person I was giving it to hooked the cords up wrong so I’m thinking that is why this is happening.
I have same problem in hot days car like after few km runs car is power loss and in winter car running very good and I scan a car not show any error code.
how do i find where all my relay is located ??? i have a civic si 07 it's the same engine in the video but the fuse box and relay are not disposed as the same in the video... find some stuff about fuse locations in the book of the car but not about relay location
450 yes also check you battery if it’s good hold power and check connections on battery u had one honda long back same problem it had bad ground from battery to body. And please subscribe
@@RBTheMechanic ok thanks for your help brother and also my two brown relay are located in my hood fuse box not in my interior fuse box like you, did it changes something ??
I have a 2008 honda accord but my code is a p0171 lean code. But i fixed everything it could be but after my car warms up it dont likes to stay on or start up. Havin trouble findin the solution? HELP ANYBODY
@@thatz_jay_8412 any codes? Stall can be many things scan for codes with good scan tool some of the cheaper scan tool might not give u codes but good scan tool can give u deeper memory or pending codes
@@thatz_jay_8412 it could be maf sensor if ur accord got it or oxygen sensor upstream which can pop this code I would try the oxygen sensor first and reset the light
joshua patterson it solved the problem you don’t want to change the ecu then still have the same problem and try relay the all data refers to this cause of problem how ever it can be ecu it can all be bad battery or poor connection at better terminall
@@RBTheMechanic this helped out alot...im going to change it tomorrow i let it ride for too long ...now my question is do you have to change all 3 relays? or do you do it for good measure ?
I have a 2007 Honda Accord EX-L, I’m having this exact same problem. The car while going lower speeds (25-50 mph) will “black out” (the dash board, radio, car lights, and any other light will shut off) for about 1-3 seconds. I didn’t do it for months, and I went on a 500 mile trip and it started doing it again. Can you tell me which brand of part you got to replace the two brown relays? I want to do it myself and buy the parts, but I don’t want to buy the wrong ones. Any advice would be GREATLY appreciated!!
Jessica-Ashley Moreno no sure but most likely it’s same do real all the comments I have lots of other opinions about having bad battery casing this type of issue also and loose connection on battery bad teriminals. Please subscribe
@@achiisashvili351you have to take it to mechanic to do the ecm because it needs to be programmed so make sure the person u go to can program also I believe key might need to be programmed to ecm also it’s critical job. Before than thing check battery I would even replace it some time battery have bad cells check connectors to battery also grounds chassis to engine
My 06 accord is giving off the same code but saying “power relay control circuit open” car runs fine but this morning my ABS light went on and back off for a second. Do you think it’s the same thing with the relays needing to be replaced?
Frankies World abs might be diff proble do deep code scanning with good Scan tool and let me know if there’s any codes check ur batter connections I had another car similar problem but was bad battery connections
RB The Mechanic matter of fact I’ve talked to a couple car tech savvy and they said the same thing because my battery terminals are very corroded. Going to clean them good today after work.
@@RBTheMechanic thanks for answering, well I removed the battery and I did the steps that supposedly reset it, but it continues to turn off, and when it turns off it does not allow the lever to move to put it in neutral, it is as if it blocked the speed, I do not know what to do
@@RBTheMechanic cheers bro i checked the airfilter and spark plugs they seem fine some friends said it maybe clutch gone on it but il have a check on the sensor thanks
@@RBTheMechanic i thought it would have been a sensor or fuel injectors but got told it was clutch as i stopped at a juction put it in gear car wouldnt move reved up but wouldn't budge
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I had this problem on a 2003 Honda Accord ex v6 AT. Symptoms were Radio, and Dashlights would turn off while driving followed by car stalling for a split second. Headlights would dim or get brighter on acceleration and deceleration like the car is starving for electrons from the alternator (or serpentine belt loose?). The code came up P0685 on a blue driver.
The solution so far:
1) Checked the relays under the driver's side. EI main, IG coil, and since I was there Fuel pump. Took them off. Cut a regular house light wire. Somewhat held the relay end to the battery under the hood (Caution the relay is not protected anymore from the fuse box). I heard the relay click, concluding relay was good.
2) Cleaned the grounding wire surfaces around the engine bay from the black and white pictures I referenced on forums. The reference below is the Driver side/Passenger side instead of left and right.
Battery negative to Car wall (driver side), Car wall to Transmission (under air filter driver side), Battery positive harness traced to the throttle body (2 small wires)(driver side engine side), Battery positive harness traced to a bracket power steering pump/injectors (Passenger side on the engine), Motor mount to car wall Passenger side near the serpentine belt.
3) After cleaning the grounds and checking the voltage on the battery and alternator the code is gone. The battery grounds are referenced (C101, C102 etc on forums)
4) I got another code for the throttle body P2101. That was because I took the air filter housing off to get at the Grounded wire transmission to the car body. I probably should have cleaned the throttle body but didn't. I'll clean it next weekend. hopefully, that will get rid of the code.
How old is ur battery I had few cars with bad better or bad better connections
You don’t understand how many videos I had to thumb through to find out where the ecm is omfg thanks
No problem ask me anything if u need more information
@@RBTheMechanic thanks man you’re truly a great person and auto technician
I just want to say you're awesome for actually responding to everyone's questions. Thank you for the video and all the suggestions you've given others!
I have a Honda Insight that's throwing this code and am going to check the relays and battery connection (battery is brand new, 1 month old). Thankfully the car isn't stalling but it just started throwing this code so I'm going to try and fix it before anything worse happens. I just paid it off this past month so I'm like... it needs to last me a good long time lol.
Thank you so much now I have a clear understanding
Welcome!!
Hey RB , I have a 2007 Accord 2.0 . Lightning struck my driver’s side mirror and destroyed it ! Now I don’t have power to my window’s and the engine won’t turn over . What do you suggest ? Love your video , very straightforward !
Oh man possability whole electrical systym got friend I would start with scanning the car see if it communicate with scan tool
I found that May positive battery cable was loose, I could pull it off with my hand. Hope this will fix May issue. Car did not ever stall but radio,Navi and meter gages would blink and lose power for a second. If this is not the fix I will move on to replacing the relays. Thanks!
Oh nice that is a start for the repair
vid still saving ppl. thanks! worked on my rsx
Hell yeah I have tone of videos people had great help
Greetings my friend who specializes wake us up my car when caught in a heavy rain steering wheel resists and brakes too and detail the engine is still running but when you turn off the air conditioning the car starts working again it's a 2.0 2006 but it's still running could be the lambda probe of the discharge or the scanner will be able to locate this fault thanks
I didn’t understand ur issue
my accord when the air conditioning is on when there is heavy rain, it seems to turn off the steering wheel, it stays dim as well as the brake, but it remains on when the air conditioning is turned off, the steering wheel and brake return to normal
I have a 2003 accord 2.4l EX. Car always, always runs rich it smells like burned fuel and intermittently runs lean also to the point car wants to die and has no power?! No codes except p0172 ocasionally which i cleared. It misfires too when climbing hills. Fuel pressure seems good at 50psi when idling and revving in park. Could this be PCM relayed issue since no codes are present?
Did u check ur oil level vtec could be issue of misfire
@@RBTheMechanic hey thanks for the reply! So the problem could be in the v-tec system. Failing v-tec solenoid perhaps
@@RBTheMechanic i did check the engine oil level, it seems fine.
@@SimKlein-qr3ly could be
Question?
How do you check the relay to see that they still work?
U can’t check relay cuz they can work when tapped on or touched I would replace it regardless then check out put power to confirm
Thanks ! Currently having this same issue with the same code.
Exact same thing happening to me. Changed 3 relays problem came back after 1 day. About to check battery and alternator.
Ever figure it out?
After I replaced the battery and alternator the problem is gone. They both tested ‘ok’ so it was not my first plan but it worked.
@@BP-xx8yu thanks for the fast reply, ill probably end up having to do the same
@@AndyBobandi No problem, hope it resolves for you as well
I have a 07 as well and it was stalling as well. I also have a blinking key light on the dash. I called a key guy to come out but he could not program the key because there wasn’t any communication with the computer. I also had another mechanic try to put his computer up to the car but no communication what do you think I should do. Please help car is just sitting.
Scan tool dosent communicate could possability of no power and/ or ground to ecm check all fuses first
Hay alguna diferencia entre los relés rojos con el azúl? Tienen que ser del mismo color al reemplazarlos? Gracias
Sorry I don’t understand
i got this code on my 2006 honda civic si Im trynna look for the location of the relay but getting confused I think mines on fuse box #1 but not sure
It should have diagram also check to see if ur battery is loose or has corrosion on connections
If you see this and help out would be great 2008 Acura RDX. P0685 code. Cant figure out wtf is wrong with it. Seems like u have the answer but i cant figure out what exact relays need to be replaced since it has a little bit different layout. Im not a mechanic or anything like that so its hard to figure out
Ok before anything check ur batter connectors also if ur battery is old replace it
@@RBTheMechanic battery is about 2 months old, and the connection is good, nice and tight.
Thangks Very much Sir.,
God job👍👍
On my '08 TSX I am getting code 83-1 with no lights lit up. It's saying something about my VSA/ABS but I am able to use my VSA with no issues. Will this help solve this issue?
I don’t think this is the area if the light is not on and there are no issues reset and clear the codes if they come back then might want to start repairs
Ok, Is there a difference between the red relays and the blue one? Does it have to be the same color that the used relays when replaced? Thank you
Yup it has to be same
@@RBTheMechanic ok, thank you very much, good day
What are these relays called? I have this problem too
I have a 04 accord they should be the same as the ones in the video
Hey there, I was in drive thru, car cut off code came up P0685 have 05 Accord. Where can I purchase those relays without going to dealership
Check ur battery and connections on battery that also can cause power loss to ecm or these relays anways these are dealer item
Sorry Sir im from Indonesia i have problem with my 2005 Honda Accord,,,when i try to scann with scann tool and try to enter the PGM-FI ENGINE section it show "error in communicating with the vehicle ecu" so I can't enter the engine system with my scanner,,i try to remove some censor to test if my scanner can find something but still my scanner doesn't find anything even with the censor that i remove....i just replace my ecu with the new one but with the chip price and i don't know if this ecu work or not stupidly....is that problem comes because the ecu its still not working (bad ecu) or something wrong with the wiring cable? because before this my old ecu just drowning into a water because i have problem with the heater and end up being my ecu drowning and need to replace with the new one... thanks 🙏
Not sure y it gives error try scanning check engine.
Is it the same in a 2005 honda accord coupe v6 3.0?? Can't find the ecu/pcm fuse anywhere on the inside of the 2 fuse boxes. (Under hood/ drivers side foot well)
Might be same not sure if it got same set up
Hey I got a 2004 V6 3.0 Coupe ex as well and I see the blue fuel pump relay but I'm not seeing the other two as well did you ever find the???? My car is doing the exact thing in the video where it shuts off for a couple seconds called the parts stores they don't have them I work at a mechanic shop but they're not open again till Tuesday and I got to figure this out because I work at my other job tomorrow it might be a dealer only option for the other two relays the O'Reilly Auto parts near me has the fuel pump relay but not the other two they can't find them but yeah let me know if you ever found the location of the other two relays please
2004 Honda Accord here code , P0685(1 / 1) Stored
ECM/PCM Power Relay
Control Circuit/Open
DTC Severity 2 of 3 Repair
immediately.
Car was jolting like I was hitting the breaks, then I loss radio and brake lights, it starts and runs fine now, no more jolting but still no radio or brake lights, any suggestions?
It’s a stick shift
Check battery connector and check radio connections somthing must be loose
Thank You.
I'm having this same issue but new relays didn't fix it. Cranking and lots of clicking from relays. Also, check engine light doesn't turn on when I turn the key to the on position
Yes the light suppose to be in it only goes away once’s engine is running if there are no issues anyways any codes?
We figured it out. It was looking at us right in the face. The ground off the injectors was loose. Tighten it, starts no problem
@@jonathanmorillo1438 nice good job!!!
@@jonathanmorillo1438can you send me a picture of the ground you’re talking about?
@@ya_its_ryan_9118 how do I send you a picture?
I changed the two brown relay and still doing the same , do I need to change the blue one?
Check the blue relay also and check ur battery power and battery connections and ground batter to body
@@RBTheMechanic hey my car would not start but as I give it a jump it start but when I drive for amount of time the car would just shut down
Would the relays be the same for a 05 Acura TSX
Prolly same but not located exact same spot
Great Video! Liked & Subscribed. I have an '04 Accord EX 4cyl. With this code, also it has a 61-1 Battery voltage malfunction code, is that 61-1 code because of the P0685 code? It cleared & the check engine light has stayed off for half a day so far. This tends to occur when going into the mountains (Elevation 8500+ feet) in Colorado then after going back to Denver, CO (5280 feet) it tends to stop being an issue. I've already replaced the battery, used CRC battery cleaner & tightened the clamps. Can you please elaborate on this issue & the 61-1 code thoroughly. Thank You
RB The Mechanic
When these codes first came on in '17 batrery was replaced, codes cleared & no issue for about a year. Car wouldn't start used CRC cleaner which revealed acid and was thoroughly cleaned with clamps tightened (Fall '18) recently with the 61-1 & P-0685 codes popping up again everything looks good for the battery but may need to CRC clean it again to reveal any acid corrison. Wondering if this RELAY that you mention in your video could last this long without failing completely since Jan '17 til now with this issue?
Here's the exact trouble codes:
'04 Accord EX 2.4 4cyl with the following error codes:
61-1 Battery Voltage Malfunction
P0685 ECM/PCM Power Relay Control Ckt/Open (Current 135-1)
P0685 Engine & Powertrain Control Modules, Power Relay Control Circuit/Open
What do these codes tell you? Which relay should I get replaced & do you have the part # please? Thank You
wow that"s alot of digging to ask for. why don't you take the car to this guys shop and pay him to do all the digging your asking him to do?
@@amcgee-dl3cj Thanks for your (non) help. Why even reply if you can't advise, brainstorm or share your experience? I have the same issue and was hoping for advise as to where to start. I found this lame a** reply instead. Thanks
Great video man! Question what type of camera are you using?
We Hustle Daily go pro
This is a great video that was extremely informative.. but please stop calling it F1; it's FI. PGM-FI (Programmed Fuel Injection).
oops will keep that in mind F1 is on mind because I always wanted to join air force after high school and F1 jet is the best
Thank you.
It the same real mechanics all know
Sometimes the lowercase letter l can look like a number one.
For example : Multi Port-Fuel Injection or MPFI, specifically these ones ( 3.1 Multi Port FI ) which were visible badges on side fenders of old GM cars from the early to mid 90's cars with the 3.1L V6 motors, such as the Chevy Cavalier Z24.
Are both of the brown replays the exact same part? 39794-SDA-902?
I think so
@@RBTheMechanic thanks for the response🙏 Was there a specific reason that you needed to replace all 3 relays instead of just the one controlling the ECM? I plan on replacing all 3 on my vehicle, I’m just curious if it was because it needed to be done or if It was preventative maintenance because those relays usually go bad at the same time or something?
@@jimmycorbett4611 very important relays and car has over 150k miles so take no chances relay them all
Hey do you think the ignition relay can affect my cat from completetly shutting off while driving. Currently have the p0685 code but i already changed the f1 relay and 2 weeks later it shut off again. 2003 honda accord
Nooo it has nothing to do with it
Open in the driver's airbag second inflator 83-11 ؟
Help me please./accord 2009 L4
That’s air bag it self gotta replace it expencive part
I got a 83-1 code on honda accord v6 and it said ecm powertraim control module pcm relation function any idea do i need a whole new computer
Before replacing ecm change out the relays and check ur battery if it’s more than 3 years old change it and check terminals for corrosions and loose connections
Thanks for this video. Please how do I get access to those wiring diagram? Do I need to download an app or any link to help?
Thanks.
No apps just first check ur battery if it’s old replace it and it’s the negative cable on battery it could be loose connection
@@RBTheMechanic . Yes, thanks. I want to know where I can have access to wiring diagrams for future purposes.
@@RBTheMechanic . Yes, thanks. I want to know where I can have access to wiring diagrams for future purposes.
@@godspowerodoemenem4451 they have few software such as mitchel data shopkey , alldata but they all require subscription like $300 per month
I have a 08 honda accord and my
Check engine light would come on here and there.. my car would stall to crank and the code would be for misfiring signals like crankshaft, camshaft and different spark plug positions. So we parted them out and my car would still do it on some days. Now it is completely in limp mode, when it cranks check engine comes on and illuminates car wont go over 5 miles and wont accelerate. I have been told it is my ecm could that be true ?
It can be throttle body but u might need to have it check out by mechanic I had a car that had blocked catalytic converter it wouldn’t go above 15mph
@EXTREME CHALLENGES yeah I had another car with similar issue it had weak battery and then another can same issue but was bad ground from battery to frame check all that
My 2004 accord no crank at all..the lamp of gear shifting won appear,my check engine light also won appear..there is no fuel pump sound..can u help me
Did I try jump start it?
@@RBTheMechanic im not try to jump start because my car totally shut off..no crank at all..should be before we want to start,all indicator will appear..
Hey wassup I was having the same problem I change all 3 relay and my car still be turn off and back on while driving smh I had that code any suggestions
same here
My speed sensor caused this issue on my car. I unplugged it now it runs but yk.
I'm experiencing a similar issue and I have a P0685 code as well. I replaced the F1 main and ignition coil relays as indicated in the diagram at the end of the video, but not the fuel pump relay. I'm still having issues where the car will decide to stop working for a brief moment while driving and it seems like the whole electrical system just shuts down. Sometimes it happens when I'm driving down the highway and I try to roll down my windows using the power window switches, at which point the power drains and everything starts to shut off and as soon as I release the switches, everything starts to recover. Today, I drove my car and parked it somewhere and came back 15 min later to turn it on and nothing. The car wouldn't respond to my key fob attempting to unlock it. I got not auxiliary power when I initially turned the key. No lights, no ignition nothing. It's as if the battery were disconnected, which it's not. I was going to tow it, but came back an hour later and everything worked fine as normal. Do you think replacing the fuel pump relay also may remedy this? If so why? Thanks for your video. It was very helpful.
And just to clarify, I have a 06 Honda Accord.
I WOULD SUGGUEST TO REPLACE BATTERY AND CHECK AND MAKE SURE SECURE CONNECTION ON BATTERY TERMINALS ALSO CLEAN OFF ALL CORROSION FOLLOW THE GROUND CABLE IT SHOULD BE BOLTED ON TO THE CAR BODY NEAR THE BATTERY WITH 10MM BOLT TAKE THAT OFF CLEAN THE SURFACE IF THE GROUND CABLE LOOKS BAD JUST REPLACE IT
I HAD ANOTHER VEHICLE WITH SIMILAR PROBLEM WE REPLACE BATTERY AND CHECKED FOR CONNECTION ON BETTERY TERMINALS IT RESOLVED THE ISSUE
@@RBTheMechanic where you located brother i have similar issues i have a 2009 chevy malibu
TOm I’m up north NJ Bayonne. What codes you have
Awesome! Thanks!
I have a 2004 Honda Accord and I had a fuse out and noticed that I was missing a few fuses so i filled it up with the missing fuses could that cause a problem? I am having the sudden stalling while driving
Depends what codes u have and stall could be many things did it stall at redlight or stop sign?
@@RBTheMechanic it threw the p0685 and I have been stopping at stop sign and then driving also
@@RBTheMechanic when it stalls
@@RBTheMechanic do you have a video replacing the flrelay ignition relay and and fuel pump relay or is it easy to take it out. I don't do much work on cars...
@@ME-ur6ny these are the main relays one of them is do fuel it’s labeled u can figure it out
My accord is loosing power to the map sensor and tps, cycle the key a couple times and the power comes back and the car will run all day until it is shut off then the problem repeats, it never dies it just runs terrible bc it doesn’t see map or throttle. Sound like a relay or the ecu itself?
Bajaheat difficult one dose it have any codes did u try scanning with big scan tool suck as snap on
Hey brother i just got that code today my car is shutting off for a brief second while i drive i have a honda accord 2011 v6 does this apply to that car?
Could be or somthing else did u scan the car for codes
@@RBTheMechanic yes gave me the p0685
@@UserRjt so this could be possability I also had car with bad battery terminals loss of power to ecm check ur ground and postive
@@RBTheMechanic i was thinking that i have a little corrosion on the positive connection ill try to clean it off and see if it goes away tomorrow morning but thanks for responding bro you are a life saver 💪🏽thank you soo much
You just saved me money thank you so much
Wassup man I have the same problem 07 2.4 same codes I change all 3 relays and I'm still have the same issue car while driving turn off and on smh any suggestions
Check ur battery connectors also if battery is old replace it I had that issue with this code also
@RBTheMechanic thanks man yea this is driving me crazy lol
@@dmarte9578 it’s not easy code to fix bet definitely check battery connections and negative terminal I had one honda it had bad connectors it cause power loss
How do we know which one to replace blue or brown?
Change them both
I have a 2005 Honda Accord that once or twice a week it’ll shut off for a brief moment like everything flickers on and off, a couple of times it’s shut off completely and locked up on me I had to turn ignition off and on, I replaced the two main pcm relays just wondering if it’s my computer that needs to be switched now or should I replaced the other two relays before? Thank you much help needed please.
I also have a video on my channel that shows my car doing what I’m talking about.
Noel Zaldana glad this helped u. Please subscribe
RB The Mechanic I was wondering if you can help me out with my problem I keep having the same issue after switching the two main relays?
Noel Zaldana sure can you scan the can let me know if there are any codes, also check the connections of battery terminals and if you battery is old please change it I have had similar issues on another honda years back it had bad battery get back to me if the car has any codes and try the things I mentioned
If the check engine is not on scan the car anyways there will be memory codes need to deep scan the car with good scan tool not Autozone Type
What could be wrong I have a 2003 Honda Accord that doesn’t go over 2000 RPM and shakes and shuts off if you could help I would really appreciate it
Did you scan for any codes??? Do the basics plugs change air filter and if it got codes let me know
It could be blocked catalytic converters u should even try running the car with oxygen sensor out the first oxygen sensor
I have an 06 Acura TL an I got this code before my car decided to not start again. The mechanic told me that some numbers have to match on ecm before replacing can you please inform me about that ?
U mean ur replacing the ecm? If you do yes u have to get correct ecm also program the key or it will not start
Problem still persists even after I changed the relays and I checked the battery and other connector... All connected well... What can you suggest is the cause please ?
How old is the battery? If it’s older than 3 year u must replace that also and these are all the basics also check ground from body to engine
@@RBTheMechanic battery is not up to 6months usage
Do I need to replace the whole fuse box ?
@@amtvnigeria8523 before that try all the basics check ground battery to body body to engine there’s new ground around the engine
@@RBTheMechanic please what do you mean by new ground ?
I have same problem, sometimes my car wouldn’t start, but I would turn the key again and it would start, and also sometimes the battery would be dead, and I would need a jump. I will change the relays hopefully it will solve the problem.
Warr Datt I think you should change the battery it might just take care of the starting issue some time it doesn’t get enough power and please subscribe
I changed the 3 relays you said and it only took off the “check engine light “,but when I drive it still dies and shows the red battery and red oil dripping on the dashboard,please help
certified god rj check ur oil level and out out of ur alternator also how old is ur battery? And check connections on battery
If battery is too old that can cause the problem also
RB The Mechanic ooh,so you want me to check my alternator and my battery?
certified god rj yeah check ur battery terminal connection also check your already or output if ur battery is older than 3 years replace it
RB The Mechanic the oils bad and kinda low after I get it changed do you think it’ll work?
Do you know what part number the relay is for 2006 Accord 2.4L? Great video.
Jeffrey Hagan will let u know give me till tomorrow
Jeffrey Hagan the relays I have for this car up on video part number is 39794 sda 902
Also 39794 sda 004
@@RBTheMechanic thank you
Jeffrey Hagan no problem please subscribe also check out my rc channel the name is rcusa201
Do you know if p0685 can cause the drive light too blink?
Yup it’s bad selnoid on transmission
@@RBTheMechanic what I'm trying too ask is do you know if a bad main relay will cause blinking drive light?
@@RBTheMechanic I've already changed out 3rd and 4th gear pressure switches
@@tonymaas1709 this is selnoid not pressure switch flashing D is selnoid
@@tonymaas1709 no it’s usully selnoid outside I did on honda odessey lot not on accords tho
What I wanna know is how you got the drivers door fuse box thing open I’m tryna figure out how to take out the piece of trim without breaking anyrhing
Free Hhhh your taking about fuse box user the dash?
RB The Mechanic yeah you know there’s the little panel that comes off that shows you the little baby fuses but there’s still the trim piece that needs to come out to expose the big boy fuses how you pull the trim out without breaking anyrhing
Free Hhhh oh yeah man I don’t have video on that but you can google so
Thing if I get a car sooner or later I will make a video but it shouldn’t be chard
Hey RB i have a 2005 honda accord ex battery is good but when i start it makes a crank sound and wont start. What is the issue ?
Its Abdu try jump starting some times you think it’s good battery but it dosent have enough power. If that doesn’t work then you maybe have bad starter. Let me know what happned then I can guide u further and have a person crank the car while u look at the belt of the car see if it rotates. Let me know.. please subscribe
Came across this video cos my accord 04 the engine light came on when i scan it theres a p0685 code. I replaced the top middle relay after that the engine light is gone then after 30mins of driving the engine light came on again 😭
Check ur battery power if it’s older than 3 years change the battery also check for broken ground in engine bay
I've got a 2007 honda accord se 2.4l engine. It stalls when idling. I've changed the spark plugs, coil packs, air filter and air intake hose. It's will NOT stay running. I don't have a scanner nor the ability to get one. Please help
Clean ur throttle body
I have a Honda Accord 2007. I gave someone a jump about a week ago. Now every time I start my car up I have to press the Honda code the dealership gave me and the radio will shut off after 3 minutes and I’ll have to enter the code every time. Any suggestions as to what is wrong?
Check ur fuses ... also it can be bad radio I have accord which goes on and off by it self it well knows problem in the accord radios
I checked the fuses however the radio fuse is not blown. Is there a possibility that that fuse has a short and still needs to be replaced? When I was giving the jump the person I was giving it to hooked the cords up wrong so I’m thinking that is why this is happening.
@@brandon3184 oh noooo darn it well try checking all of ur fuses there’s other fuses such as accessories
Thank you. Greatly appreciated!!!!
Is it possible if i have defective 40amp fuse will this p0685 appear?
Carl Benedict Lim not sure dudes has to be either good or bad so do change the fuse and let’s see what happnes
What is the part number for the relays?
Part number is 39794-sad-902 and the blue relay for fuel pump is 39794-sad-004
You mentioned 3 relays to replace which one ends in 902? Also did you mean to put SDA-902 instead of SAD-902?
Are the two brown relays the same?
thanks man u the g
I have same problem in hot days car like after few km runs car is power loss and in winter car running very good and I scan a car not show any error code.
Well that’s wierd maybe the relays are heating up I would change them
how do i find where all my relay is located ??? i have a civic si 07 it's the same engine in the video but the fuse box and relay are not disposed as the same in the video... find some stuff about fuse locations in the book of the car but not about relay location
450 which relay ru looking for
@@RBTheMechanic the two red one you said to change in the video
450 yes also check you battery if it’s good hold power and check connections on battery u had one honda long back same problem it had bad ground from battery to body. And please subscribe
@@RBTheMechanic ok thanks for your help brother and also my two brown relay are located in my hood fuse box not in my interior fuse box like you, did it changes something ??
450 what you mean did it change somthing?
I have a 2008 honda accord but my code is a p0171 lean code. But i fixed everything it could be but after my car warms up it dont likes to stay on or start up. Havin trouble findin the solution? HELP ANYBODY
Could be low idle clean the throttle
@@RBTheMechanic i have a new throttle body I still have the stalling issue
@@thatz_jay_8412 any codes? Stall can be many things scan for codes with good scan tool some of the cheaper scan tool might not give u codes but good scan tool can give u deeper memory or pending codes
@@RBTheMechanic p0171, my only option from studying is either the very front motor mount or my fuel pump.
@@thatz_jay_8412 it could be maf sensor if ur accord got it or oxygen sensor upstream which can pop this code I would try the oxygen sensor first and reset the light
Hi, does anybody has a link to find that part on Amazon please ?
This only From dealer u less u can search by part number
@@RBTheMechanic ok, thanks
Your video is the only one that mentions relays everyone else takes out the ECU how do you know its the relays and not the computer
joshua patterson it solved the problem you don’t want to change the ecu then still have the same problem and try relay the all data refers to this cause of problem how ever it can be ecu it can all be bad battery or poor connection at better terminall
@@RBTheMechanic this helped out alot...im going to change it tomorrow i let it ride for too long ...now my question is do you have to change all 3 relays? or do you do it for good measure ?
I have a 2007 Honda Accord EX-L, I’m having this exact same problem. The car while going lower speeds (25-50 mph) will “black out” (the dash board, radio, car lights, and any other light will shut off) for about 1-3 seconds. I didn’t do it for months, and I went on a 500 mile trip and it started doing it again. Can you tell me which brand of part you got to replace the two brown relays? I want to do it myself and buy the parts, but I don’t want to buy the wrong ones. Any advice would be GREATLY appreciated!!
Reeva Mertens only dealer item... but do u have codes? Check you ignition switch
Have you fixed this issue? I’m having the same issue. Was it the ignition switch ?
Is this the same for a Honda Civic
Jessica-Ashley Moreno no sure but most likely it’s same do real all the comments I have lots of other opinions about having bad battery casing this type of issue also and loose connection on battery bad teriminals. Please subscribe
i have a same problem on civic si 2009 and relay didn’t helpd me... what can be other problems can you tell me ?? :\
Check ur battery if it’s toooo ok’d replace it check the connections if they r good and not corroded last possibility is ecm
@@RBTheMechanic if it’s ecm problem can i raplace it ??? or it must be change
@@achiisashvili351you have to take it to mechanic to do the ecm because it needs to be programmed so make sure the person u go to can program also I believe key might need to be programmed to ecm also it’s critical job. Before than thing check battery I would even replace it some time battery have bad cells check connectors to battery also grounds chassis to engine
@@RBTheMechanic thanks
My 06 accord is giving off the same code but saying “power relay control circuit open” car runs fine but this morning my ABS light went on and back off for a second. Do you think it’s the same thing with the relays needing to be replaced?
Frankies World abs might be diff proble do deep code scanning with good Scan tool and let me know if there’s any codes check ur batter connections I had another car similar problem but was bad battery connections
RB The Mechanic matter of fact I’ve talked to a couple car tech savvy and they said the same thing because my battery terminals are very corroded. Going to clean them good today after work.
Frankies World yup let me know what happnes
hello if you could help me, how do I remove code p0685, I already changed the parts but it still comes out, pls thanks
yuse did u reset it? And it comes back ?
@@RBTheMechanic thanks for answering, well I removed the battery and I did the steps that supposedly reset it, but it continues to turn off, and when it turns off it does not allow the lever to move to put it in neutral, it is as if it blocked the speed, I do not know what to do
yuse I have to check on my honda not sure if it should block u to go in to neutral no matter what the problem is
@@RBTheMechanic do you think it is a computer problem?
yuse it can be but I need to check on my car on Monday I have 2004 accord and see the circuit for the shifter lock selnoid
Where can I find some ?
Dealer only
My accord doesnt pick speed up it struggles in 1st and second gear
Check performance data of TP sensor otherwise it’s transmission related
@@RBTheMechanic cheers bro i checked the airfilter and spark plugs they seem fine some friends said it maybe clutch gone on it but il have a check on the sensor thanks
@@RBTheMechanic it was the clutch
@@mrslimz4148 oh ok!!!
@@RBTheMechanic i thought it would have been a sensor or fuel injectors but got told it was clutch as i stopped at a juction put it in gear car wouldnt move reved up but wouldn't budge
U0401-68-PGM-FI system,P073F-unable to engage gear ,Honda vezel fault.what I do that?
Rajitha lasanka is this car stick shift. Did not under stand the bezel part?!?
Peguei uma Crv esses dias dando esse código, erra sensor de rotação!
Edmilson Francisco de Oliveira no idea what u said only English
The check engine light is on on my 04 accord and we scanned it and that code came out. The car has never shut down on me or stalled on me tho
GuplyFred simply rest the light and hopefully it dosent come back on
Thank you, this video helped alot.
PoachedJohn no problem please subscribe also subscribe to my other channel here’s a link th-cam.com/channels/vqsPzqAZfVv_gjBYUFqNdg.html