Power Probe IV - Driver Test Mode
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- เผยแพร่เมื่อ 10 ก.ย. 2024
- How to test the output Control Module Driver using the Power Probe IV.
Accessories used in this video are the Back Probe Adapter Part #AA6 and the 1 foot lead Part #PNLS025-12RED. These can be purchased from your local tool dealer or visit PowerProbe.com for more details.
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That little schematic you show at the beginning is worth a 100x its weight in gold.
New on to this brand and I'm 100% happy with it
Whats the difference between the driver test and just checking for ground with the probe tip when turning on the AC?
if the probe isnt switched to the driver test mode .... no such a current limited 12v will be at probe tip and PCM damaged
yo e probado el power probe III Y es muy bueno
Thank you 👍 Power probe 🇺🇸
From Nick Ayivor from London England UK 🇬🇧
Power Probe, great video!!!!!!
Love the new power probe 4 but will there be an extension out for sale soon and can u please upload more videos
Power probe needs to put out more videos on using a power probe IV. I bought one and their instructions are pretty poor as how to use it in the specialty tests. People with the power probe 1, 2, and 3 pretty much us them for powering up components but being the power probe IV does a lot more power probe doesn't realize a lot of people out here with them are a little upset with the instructions. Yes a lot say out there say your its just dyi 's that don't get it . No I know a lot that have been in the trade for years that won't go near them being they can't afford buying burn't up components being they did not get an instruction manual or video that more then 2 minutes with decent detail. Their are only 12 pages in a 25 page manual that go into any detail how to use 8 modes. Come on Power Probe .......... you are losing sales from word of mouth on the power probe IV even tho I'm guessing someone is gonna blame it on my ability.
+dcbigsky I'm with you man. Same deal with the hook. Could easily make several hours of videos on the finer details of their tools but don't bother!
Agree entirely. To get us started from beginner level, we need more videos. Anyway as I learn im going to do some myself. So then behinner stuff gets spoken about. These dudes are so advanced that they miss out stuff. Damn I just had to remind myself what a solenoid was. Yes i am new and the videos are hard to inderstand.
Thanks for saying what those of us who need to use one and bought one are thinking and I appreciate the comments below....I just saved myself $500 using the Hook to diagnose a simple circuit problem and I have no idea what the heck I'm doing. How much more is hiding in plane sight without simple instructions for the simple minded like me? I'm thinking of buying the "Basic" just so I don't have so many things to figure out without instructions....
The hook is more versatile, but it's so big lol.
Yes!!! Here it is, 5 years later and they still don’t have sufficient tutorials on the PP4. It’s crazy, they even have a playlist of “Power Probe IV” videos that has a bunch of PP3 videos in it. I guess they can’t even be bothered to take 5 minutes and look at their content?
It seems like most people are using the IV as a more convenient volt meter. Maybe if you just put little effort into the tutorials, people would understand it’s capabilities and that would increase sales.
That matters, right?
Is this just like the Power Probe 3 but with more features?
EXCELLENT
Can this test be performed with the power probe hook?
ohh one more issue; that's another reason to use a lightbulb because now it's easy to test which wire is bad ,power or ground.please reply back power probe staff.
When you are in driver test mode how much of a load is being put on the driver transistor?
Great question bro. It's listed in the users manual as "50 ohm pull up on Tip"
So 12v/50 = .24a
And 15v/50 = .3A
If I did this right we should be good with just about every driver on the car and it may actually be safer than an incandescent light (like I use) as a light will have a momentary high amp surge unlike a resistor.
Did you purchase one Paul? It seems to have some interesting features. I have some other tools on my want list before I get a Power Probe 4, want to get that new Pico cop probe and the new 30 amp low amp probe as well from Pico. Nice to hear from you.
Yes and I've only used it once so far.
Still learning it's features. It will definitely come I'm handy.
Good to hear from you too.
What's the difference between the driver test mode and just hitting the switch to supply 12v to the tip? I take it in driver test mode, the difference must be the 50 ohm pull-up resistor that limits current flow. Is that the only difference? Sounds like that would be safe, but just injecting 12v from the tip otherwise would probably fry the driver because there'd be nothing to limit current.
So are you putting power into the ground circuit?
Extension cable for the Power Probe 4 part number CAEXT1
España
how is this not supplying 12v to an ecu circuit?
It is, and that's ok. Some ECUs won't switch the circuit to ground if it doesn't sense power coming through the relay.
Hi...how can buy?
Hola soy d urguay.q costo tiene a mi pais
it's my understanding that this probe feeds 12 volt to cable going to ecm.but alot- of devices are negative control,so it appears to me that this is a risky test and burn ecm - use a test light would be safer.somebody correct me or explain to me please,thank u
It's current limited, as they say in the video. The Power Probe IV has an internal resistance of 350 kOhm.
thanks
رائع جدا
one more issue: driver transistors only block enough current from passing through.there is 12 volts at wire so I would think that if techs measure that wire and see 12 v already they would hesitate from applying their probes 12v also.that would have me scratching my head.
More videos
It's $115!!!!
chani power probe mad
Probing the output driver terminal at the relay socket? Ok so what is that 85 pin or 86 pin on the ECU side of the relay or on the other side to the fan? And if it is the ECU side wont by putting 12.5 volts into it just kill the ECU? i think I have just answered my own question lol. No seriously, doesn't the ECU always only use a 5v reference to trigger relays? Yes and like DCBIGSKY says below, for beginners there needs to be more clasroom style lessons on how to use the thing. They boast its for beginners too, so make videos for us then. Oh and change the damn lerson doing them, his voice is unbelievably annoying.
Driver circuits see 12v coming through the relay all day, shooting 12v into it isn't going to hurt it. Just know the circuit you're shooting into.
5v is for sensor circuits
You're not applying power! You aremeasuring it. 12vdc reading when you torn on the fan it grounds and pulls to near zero. And it reads/measures that. Don't rock the switch! When performing this test.