Having the U1000 and U1001 code on my 04 350z, Rad fan is on 24/7 when key is on, headlights and tailight are always on, high beams do not work, ac does not work, no lights on dash other then the CEL. what is my issue? would i result to a bad BCM?
Thank u so much for this video. I've been having the same issue with my 04 G35. One question tho, what other vehicle's ECM can be used to replace this one with?
The 2003 thru 2005 might be compatible. But also make sure to know which VQ engine you have. Is it the high rev , or the regular one. 2003-2005 should all be compatible , has the VQ35 3.5L V6 engine. Also the Nissan 350z 2003 model. Please note I'm referring to the sedan and not the coupe. If you have the g35 coup, I dont know at all if the ecu would be compatible.
I have a 2003 g35 coupe manual transmission every time i go through bumps or bad streets that would make my car shake too much the Slip/VcdOFF lights come on and engine shuts off on me and fans turn on i have a code of u1001 scanner said is ECU no communication.
Dude I've tried for 2 months to try to figure this out. I've literally got the EXACT same issues and codes and everything. And it just went away yesterday. Did this still work?? Did you replace the one under the driver side dash??
Hoping you could help I have the p1212 and u1001 everything works fine but speedometer don't move and lights light up on dash I just swapped the abs fuse with a new one and sadly didn't do the trick
@@johnrodriguez4829 the abs module because it has a computer attached to it so replace that and abs light on dash should leave and speedo should work again but make sure you get the right abs you can check the on the numbers on the abs module
yo bro. can you pull up a diagram for me? it’s been 4 weeks and i hadn’t found no one that can do it. my car is in limp mode from the u1000 code, infinity g35s 2007
I'm having the CAN COMM CIRC U1000 code on my fx35 2007. The abs/vdc/slip light is on, my fans are kicked on hi while the engine is not started, ignition just on AC. Some other faults included. Please what did you do to resolve the issue?
The fx35 starts as normal, but i can't communicate with my; 1. FULL HEAD LAMPS (when i turn or pull head lamps knob switch, it shows the full head lamp symbols on the dashboard, but doesn't produce lights or effects on the bulbs outside) 2. FOG LAMPS (when i turn the knob switch to fog lamps, it shows the fog light symbol on dashboard, but no light on the fog light bulbs outside the car) 3. FRONT WIPER ( doesn't respond to the knob switch operation, but the rear wiper works well) 3. ALARM SYSTEM ( when i press the panic alarm button on the car key, the alarm light symbol flashes on the dashboard, but no sound coming from the horn as it should) 4. THE FANS (the radiator and air condition fans kick on hi always, when the engine is off and ignition turned to AC) These are the lack of communication i get in the car. I scanned it and it showed the U1000 CAN COM CIRC code. I have cleaned the ground around the ecm, but no luck.
The P1001 code corresponds to a bad ground, Check the battery terminals and tighten lightly enough so they are snug and not move. Symptoms - No tach, speed, AT Check Light, engine temp gauge, no signals or hazards!!
Hello. I have a 2004 G35. Vcd/slip light comes after 2-3 miles of driving. U1001 code gets there and triggers CEL. Where is the tcm or is it just ecm? Will tha fix my problem? Thanks
I have 2004 Infiniti I35. My ABS & TCS Off light comes on a few minutes after start. As of this morning, my speedometer is no longer working. My power socket, cigarette lighter, heated seats, and passenger front seat is malfunctioning. Can a bad ECU cause all of these problems?
Hey I do have a question I have a g35 08 same code but engine works good and drives but it kicks my gears just now wile I was driving home I dint fill the car getting or shifting gear 3 and 5
@@angeljarquin4872 u may need a transmission. If it slips in 3 and 5th gears. This car was slamming in all gears do to the pcm messing up and maximizing the transmission pressures
yes it fixed it. u1000 keep being stored every time and could not comm. with the other bcm or any other module in the car. once i installed in another car did that same thing.
I have a Infiniti G35 2005 that will not rev up it will crank and run just fine but when I go to give it gas it won't do nothing I have changed the throttle sensor on the gas pedal the throttle body seems to be working fine because it programs it makes a sound do you know what it could be
There is a throttle relay in the IPDM(white fuse box with black cover) next to the battery that u may want to check if not getting no throttle response. see if u can switch that relay with a known good 1 and see what u get and check fuses too
My car shows me the u1001 Can Comm Circuit code but the car doesn't turn on the fans are one but it just don't turn on it try's but don't turn on think is the same thing? It's a Infiniti g35 2004
trentman do you mean you have to program the new ecm to the keys with the dealership? or just have to do the key sequence (turn it off and on and wait some seconds while pumping gas etc)?
How's it going trentman. I have a 2010 infiniti qx56 with the exact same symptoms that you have explained the only thing is I haven't been able to read code, or communicate with the ecm through obd because it fails to connect. I'll have to confirm that connection again tomorrow and see if I have or am able to get a code. Do you think that I have a bad ECM as well? Mahalo brother for your time. Clarence
Check fuses first there is a fuse for the DLC if it wont communicate. U should be able to access bcm,tcm,abs, and such. The fuse box in the engine compartment and fuse in the glove compartment 2 check all those n make sure. I do know the instrument clusters go out on those trucks all the time. Starting with rpm or speed the lights in the back
trentman, thanks for replying. I can communicate with AT, ABS, and Airbag every time I hook up, however after the car sat overnight everything operated normal and I decided to hook up and see if I could get codes and I was able to pull codes U0101 and P0462 today. Then it did its thing again and started flashing/flickering lights on the dash and I lost communication to the ecm or pcm, but still could communicate with the AT, ABS and Airbag. I checked all fuses, removed the ipdm, distribution box and the ecm. Disconnected all the ground wires and cleaned contacts. Disconnected all the wire harnesses and checked them including all the wiring that I could see for any evident damage, but didn’t see anything. When the problem is active, my key fob doesn’t work, engine cranks but doesn’t start, and if I leave the ignition switch on the fans cycle on and off and the dash flickers and dims on and off.
@@cmontalvo27 automatic transmission. On the scanner it should display more than just those. U should have ECM, AT, ABS, BCM, IPDM, and 1 other. What scanner u have?
Thank for this helpful video, but i have infnti qx56 with the same codes, u1000, u1001, what its doing is somtimes when driving dash lights will flicker on and off, wipers will stop working, headlights will stop working, then you go turn off the ignition and try to restart it it wont crank back up!! You basically have to wait a hour or so then everything will be back to normal. Then it will do it back again in a day or so!! Please help. I already cleaned the grounds under the hood.
@@moecapitolnetwork2916 i do know on those models the instrument cluster goes out all the time. It itself could be the cause but your will have to start with that 1st. It will set off codes to the pcm. All so make sure it's not setting off any NATS(THEFT) CODES.
Yo bro. Nice vid and narration. Been dealing with an 07 M35. No crank. Dash light comes on. Fan comes on from time to time. I have consult for diag purposes. CAN Chart is broken. Only PCM ABS and TCM was communicating. All other module, dead. Impossible to connect to any other module than PCM BCM ABS AIrbag. Tried my snapon as a second option, same. 1000 nd 1001 on the PCM too nd replaced it but still a no go. Since BCM not communicating, just received a BCM nd need to reprogram the keys. Any idea if still a no go?
@@MrTmanslim i would think so if IPDM was not known good; indeed, I have 2 M35 so IPDM currently showing red is IPDM of my other running M35. The original IPDM of this non-running M35 is also good because is currently installed in the other M35. Conclusion: both IPDMs are good They make the good running M35 runs although the bad M35 wont run no matter which one is in it. Note: when i replaced ECM, i used Consult to rewrite VIN since old ECM was good used taken from an06 M35 (mine is 07). Part # differs but I believe they are the same, not sure, but they have different color oem silver vs black (used). Not sure about oem BCM status; key fob was locking unlocking but security light was on when switching button on ON. So I also replaced BCM thus I Need key programming b/c my consult wont do ECM reprogramming. I thought it was safer to program keys after PCM & BCM replacement to prevent myself from doing it twice (1 after ECM replacement and 1 after BCM replacement if BCM replacement require key programming too). Sorry for writing a book. Trying to prevent confusions in explanation. Thanks for understanding.
Hello Trentman: Sir I need your help: Just bought *2002 Infiniti I35* normally I wouldn't buy a car with problems but it is seriously clean and for the price it's a gamble. So clean I mean no scratches even on the bumper and body and interior near excellent. Okay below is the tradeoff and everything known wrong with the car. If you could give me some instructions, pointers or advice, it'd be greatly appreciated. Thank you in advance *PLEASE HELP!* Marty P1212 VDC TCS ABS Communication Line Malfunction U1001 Controller Area Line Malfunction P1574 ASCD Vehicle Speed Sensor Signal Malfunction P0303 Cylinder 3 Misfire Detected
@@MrTmanslim Thanks Trentman, fyi my symptoms: SES, ABS, TCS all lights on, Speedo and Odo don't work nor does gas gauge and sits on 3000 RPM. I'll look further into this.
Hello I’m having almost the same problem. But when I’m about to start the car like it cranks but won’t start but I recently added a new starter but it still does the same thing. Please if anyone can help
Ron Kingston yes i did ecm kept setting off u1000 code everytime i reset it and caused transmission to slam into gear lost vehicle speed and engine rpms. replaced ecm it stopped.
Having the U1000 and U1001 code on my 04 350z, Rad fan is on 24/7 when key is on, headlights and tailight are always on, high beams do not work, ac does not work, no lights on dash other then the CEL. what is my issue? would i result to a bad BCM?
Thank u so much for this video. I've been having the same issue with my 04 G35. One question tho, what other vehicle's ECM can be used to replace this one with?
The 2003 thru 2005 might be compatible. But also make sure to know which VQ engine you have. Is it the high rev , or the regular one. 2003-2005 should all be compatible , has the VQ35 3.5L V6 engine. Also the Nissan 350z 2003 model. Please note I'm referring to the sedan and not the coupe. If you have the g35 coup, I dont know at all if the ecu would be compatible.
I have a 2003 g35 coupe manual transmission every time i go through bumps or bad streets that would make my car shake too much the Slip/VcdOFF lights come on and engine shuts off on me and fans turn on i have a code of u1001 scanner said is ECU no communication.
Dude I've tried for 2 months to try to figure this out. I've literally got the EXACT same issues and codes and everything. And it just went away yesterday. Did this still work?? Did you replace the one under the driver side dash??
On the car I had to replace the computer (PCM) it's behind the he passenger glovebox. Its was the root cause of everything to malfunction
@@MrTmanslim did you have to go to nissan and have the new pcm programmed?
@@christopherplourde2921 yes the have to program the key to that pcm to start
Hoping you could help I have the p1212 and u1001 everything works fine but speedometer don't move and lights light up on dash I just swapped the abs fuse with a new one and sadly didn't do the trick
Same here im working on a 03 G35 costumer states batt installed backwards, same with you? If so IPCM it's the cause
@@omarr8183 I found the problem it was the abs module
Hey, sorry to bother. Did you replace the abs module that has all the brake lines coming off or the abs computer on the inside of the vehicle?
@@johnrodriguez4829 the abs module because it has a computer attached to it so replace that and abs light on dash should leave and speedo should work again but make sure you get the right abs you can check the on the numbers on the abs module
@@johnrodriguez4829 lmk for more questions bro
yo bro. can you pull up a diagram for me? it’s been 4 weeks and i hadn’t found no one that can do it. my car is in limp mode from the u1000 code, infinity g35s 2007
What sure. What diagrams area u trying to trace down?
@@MrTmanslim I have the same problem with the u1000, what could be the solution or where do I start looking for it?
I'm having the CAN COMM CIRC U1000 code on my fx35 2007. The abs/vdc/slip light is on, my fans are kicked on hi while the engine is not started, ignition just on AC. Some other faults included. Please what did you do to resolve the issue?
Nelson A i had to replace the ECM engine control module problem was solved.
Nelson A is this code u1000 stored in the ecm? are u able to comm. with any other modules? like bcm or ipdm?
The fx35 starts as normal, but i can't communicate with my;
1. FULL HEAD LAMPS (when i turn or pull head lamps knob switch, it shows the full head lamp symbols on the dashboard, but doesn't produce lights or effects on the bulbs outside)
2. FOG LAMPS (when i turn the knob switch to fog lamps, it shows the fog light symbol on dashboard, but no light on the fog light bulbs outside the car)
3. FRONT WIPER ( doesn't respond to the knob switch operation, but the rear wiper works well)
3. ALARM SYSTEM ( when i press the panic alarm button on the car key, the alarm light symbol flashes on the dashboard, but no sound coming from the horn as it should)
4. THE FANS (the radiator and air condition fans kick on hi always, when the engine is off and ignition turned to AC)
These are the lack of communication i get in the car. I scanned it and it showed the U1000 CAN COM CIRC code. I have cleaned the ground around the ecm, but no luck.
I see you have nissan consult, please can you upload the cd file so i can install on my laptop?
Nelson A thats the dealers stuff when i use to work there. i useva different scantool called maxme.
The P1001 code corresponds to a bad ground, Check the battery terminals and tighten lightly enough so they are snug and not move. Symptoms - No tach, speed, AT Check Light, engine temp gauge, no signals or hazards!!
This had a bad pcm and fixed the problem
trentman whats a pcm? The transmission module?
Hello. I have a 2004 G35. Vcd/slip light comes after 2-3 miles of driving. U1001 code gets there and triggers CEL. Where is the tcm or is it just ecm? Will tha fix my problem? Thanks
ECM and tcm is located behind glove box bolted to the right top corner in the car. Both made together
I have 2004 Infiniti I35. My ABS & TCS Off light comes on a few minutes after start. As of this morning, my speedometer is no longer working. My power socket, cigarette lighter, heated seats, and passenger front seat is malfunctioning. Can a bad ECU cause all of these problems?
Following
Hey I do have a question I have a g35 08 same code but engine works good and drives but it kicks my gears just now wile I was driving home I dint fill the car getting or shifting gear 3 and 5
U lost me repeat lol
@@MrTmanslim I have the same code in my car u1000 and p0735 but the only thing I fill is that it shift or slips through gears u think u can help me
@@angeljarquin4872 u may need a transmission. If it slips in 3 and 5th gears. This car was slamming in all gears do to the pcm messing up and maximizing the transmission pressures
@@MrTmanslim thanks men
I got a 06 get manual that wont start and has slow crank. it also has code u1000. what do you think?
u have a scanner that scan multiple control units other than the pcm?
Sneaky TX Venom me 2 like you now have u1000 in my Z and nO power
@trentman so changing ecu has helped issue?
yes it fixed it. u1000 keep being stored every time and could not comm. with the other bcm or any other module in the car. once i installed in another car did that same thing.
Mick castellanos yes
I have a Infiniti G35 2005 that will not rev up it will crank and run just fine but when I go to give it gas it won't do nothing I have changed the throttle sensor on the gas pedal the throttle body seems to be working fine because it programs it makes a sound do you know what it could be
There is a throttle relay in the IPDM(white fuse box with black cover) next to the battery that u may want to check if not getting no throttle response. see if u can switch that relay with a known good 1 and see what u get and check fuses too
Kenneth Eudy did you fix the problem? Mine is doing the samething! Its the same year
Did you have to program it after hooking it on??
Keys had to be re initialized to the new used computer.
My car shows me the u1001 Can Comm Circuit code but the car doesn't turn on the fans are one but it just don't turn on it try's but don't turn on think is the same thing? It's a Infiniti g35 2004
Eliud C. Herrera can u list all the computers u able to go into? such as bcm,abs ecm etc?
When that happens it's your ecm fuse replace it and it should start
@@johnazrah7727 which is the ecm fuse
@@hero-tu6up check your fuse box's or refer to car manual, a simple search on Google regarding location will help a lot.
So when you put the ECU in the different vehicle we didn't have to change keys or anything
No no key changes but u will have to program the keys to them to start it otherwise the immobilizer will not allow the car to start
trentman do you mean you have to program the new ecm to the keys with the dealership? or just have to do the key sequence (turn it off and on and wait some seconds while pumping gas etc)?
Did u have to match up ecu number
How's it going trentman. I have a 2010 infiniti qx56 with the exact same symptoms that you have explained the only thing is I haven't been able to read code, or communicate with the ecm through obd because it fails to connect. I'll have to confirm that connection again tomorrow and see if I have or am able to get a code. Do you think that I have a bad ECM as well? Mahalo brother for your time. Clarence
Check fuses first there is a fuse for the DLC if it wont communicate. U should be able to access bcm,tcm,abs, and such. The fuse box in the engine compartment and fuse in the glove compartment 2 check all those n make sure. I do know the instrument clusters go out on those trucks all the time. Starting with rpm or speed the lights in the back
trentman, thanks for replying. I can communicate with AT, ABS, and Airbag every time I hook up, however after the car sat overnight everything operated normal and I decided to hook up and see if I could get codes and I was able to pull codes U0101 and P0462 today. Then it did its thing again and started flashing/flickering lights on the dash and I lost communication to the ecm or pcm, but still could communicate with the AT, ABS and Airbag. I checked all fuses, removed the ipdm, distribution box and the ecm. Disconnected all the ground wires and cleaned contacts. Disconnected all the wire harnesses and checked them including all the wiring that I could see for any evident damage, but didn’t see anything. When the problem is active, my key fob doesn’t work, engine cranks but doesn’t start, and if I leave the ignition switch on the fans cycle on and off and the dash flickers and dims on and off.
@@cmontalvo27 does BCM show up ? If not that could be the problem 2
trentman no I only see AT, ABS, and Airbag no BCM. What’s AT, transmission?
@@cmontalvo27 automatic transmission. On the scanner it should display more than just those. U should have ECM, AT, ABS, BCM, IPDM, and 1 other. What scanner u have?
I heard its the ground wires.
Its possible but that would do something different.
Thank for this helpful video, but i have infnti qx56 with the same codes, u1000, u1001, what its doing is somtimes when driving dash lights will flicker on and off, wipers will stop working, headlights will stop working, then you go turn off the ignition and try to restart it it wont crank back up!! You basically have to wait a hour or so then everything will be back to normal. Then it will do it back again in a day or so!! Please help.
I already cleaned the grounds under the hood.
What year u have
@@MrTmanslim
Its a 2004
Driving me crazy !!
@@moecapitolnetwork2916 i do know on those models the instrument cluster goes out all the time. It itself could be the cause but your will have to start with that 1st. It will set off codes to the pcm. All so make sure it's not setting off any NATS(THEFT) CODES.
Yea there is no NATS codes, but the Rpm doesn't work, so i guess i will start with the cluster, thanks for your help.
Yo bro. Nice vid and narration. Been dealing with an 07 M35. No crank. Dash light comes on. Fan comes on from time to time. I have consult for diag purposes. CAN Chart is broken. Only PCM ABS and TCM was communicating. All other module, dead. Impossible to connect to any other module than PCM BCM ABS AIrbag. Tried my snapon as a second option, same. 1000 nd 1001 on the PCM too nd replaced it but still a no go. Since BCM not communicating, just received a BCM nd need to reprogram the keys. Any idea if still a no go?
If pcm replaced u will have to program keys to that pcm. Does the ipdm show up with consult?
@@MrTmanslim Ipdm shows red in micro CAN diagnostic but not in the screen that you displayed. I only get the 4 main ctrol module only at this screen
@@CBRRR-eh3ky ipdm is probably the problem I know it control starting and power up other modules
@@MrTmanslim i would think so if IPDM was not known good; indeed, I have 2 M35 so IPDM currently showing red is IPDM of my other running M35. The original IPDM of this non-running M35 is also good because is currently installed in the other M35.
Conclusion: both IPDMs are good
They make the good running M35 runs although the bad M35 wont run no matter which one is in it.
Note: when i replaced ECM, i used Consult to rewrite VIN since old ECM was good used taken from an06 M35 (mine is 07). Part # differs but I believe they are the same, not sure, but they have different color oem silver vs black (used).
Not sure about oem BCM status; key fob was locking unlocking but security light was on when switching button on ON. So I also replaced BCM thus I Need key programming b/c my consult wont do ECM reprogramming.
I thought it was safer to program keys after PCM & BCM replacement to prevent myself from doing it twice (1 after ECM replacement and 1 after BCM replacement if BCM replacement require key programming too).
Sorry for writing a book. Trying to prevent confusions in explanation. Thanks for understanding.
@@CBRRR-eh3ky it's all good lpl
Hello Trentman: Sir I need your help: Just bought *2002 Infiniti I35* normally I wouldn't buy a car with problems but it is seriously clean and for the price it's a gamble. So clean I mean no scratches even on the bumper and body and interior near excellent. Okay below is the tradeoff and everything known wrong with the car. If you could give me some instructions, pointers or advice, it'd be greatly appreciated. Thank you in advance *PLEASE HELP!* Marty
P1212 VDC TCS ABS Communication Line Malfunction
U1001 Controller Area Line Malfunction
P1574 ASCD Vehicle Speed Sensor Signal Malfunction
P0303 Cylinder 3 Misfire Detected
That code for vdc(abs) blown fuse or control unit is messed up. P0303 usually a bad coil on back cylinder 3 near firewall.
Vehicle speed is monitored through the abs on some models
@@MrTmanslim Thanks Trentman, fyi my symptoms: SES, ABS, TCS all lights on, Speedo and Odo don't work nor does gas gauge and sits on 3000 RPM. I'll look further into this.
Hello I’m having almost the same problem. But when I’m about to start the car like it cranks but won’t start but I recently added a new starter but it still does the same thing. Please if anyone can help
U check for any stored check engine light codes and check fuel pressure?
trentman the only code I had popped up was the crankshaft position sensor A circuit bank 1
If cam or crank sensors it's got 3, will cause a no start or extending long start replace them
You got it fix n how ...
Ron Kingston yes i did ecm kept setting off u1000 code everytime i reset it and caused transmission to slam into gear lost vehicle speed and engine rpms. replaced ecm it stopped.
So I have to reprogram the computer can I take it to a mechanic or just the dealership
Ron Kingston how u fix it
Ron Kingston
Do you think, Ecm reprogram will fix it or I should change the whole module??
my Nissan livina.automatic transition.can't
Have a 2006 Infiniti fx35 same problem my coils burn/melted 2wice ... ima switch off the ecu hope that works.. bullshit ass car🤬!
G