2014 Impala Starter Issue Part 1 Starter Stays Engaged

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2014 Impala Starter Issue Part 1 Starter Stays Engaged

Рет қаралды 3,913

Күн бұрын

This is an interesting one for sure! Be Sure to check out the links below the chapters for more information!
Chapters:
00:00 Introduction
00:38 Customer Concern
04:54 Pre Scan
05:36 Starter Relay Req & Command
07:09 Testing 1
09:35 Tip 1
10:18 Service Info & Testing
23:07 Testing at relay
28:53 1.8 Volts
29:35 Accessing & Testing @ PCM
35:52 1.8 Volts again
38:44 More Testing and checking PCM Powers and Grounds
41:00 The CALL
Be sure to check out courses.handso... for online automotive videos and lessons more in depth than I have on youtube.
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Пікірлер: 35

@djosbun 11 ай бұрын

I love the long video, Brian. Longer gives a more detailed look at the issue(s) confronting you. A superb teaching situation!

@BrianMann216 11 ай бұрын

Thanks Dave. I'm hoping pcm comes tommorow, Avery will be with me so we can get it done.

@alrifainidal 11 ай бұрын

Thanks for your time to share this information with us . I exciting to the part2

@mrblonde2013 11 ай бұрын

Thanks for the longer video, I always learn something from these.

@arthurfricchione8119 11 ай бұрын

Brian thanks for sharing. You answered my question from last class on WiFi service. They all seem to have issues. I’m going to watch it again so I have a clearer picture in my brain. I’m sure you have already solved the problem. 👍

@BrianMann216 11 ай бұрын

Thanks for watching! Talk to you soon

@Max-j2r 11 ай бұрын

Thank you for your time sir

@amarghani 11 ай бұрын

very interesting. thank you for sharing.

@jeffryblackmon4846 11 ай бұрын

You're very good; I enjoyed your video so much I'm a subscriber.

@jgeorges3061 11 ай бұрын

Brian, awesome good approach and great thinking processes thanks for sharing.

@glennallen7129 11 ай бұрын

I think you made the right call Brian. No way that the pcm should be commanding that relay to turn always. Nothing is shorted either. I’d install a new relay just for good measure.

@vickenkaragozian2041 11 ай бұрын

Make sure to check pin 85 of the relay or the Yell/blk wire with a test light. I have seen 12v before with a multimeter and it's normal. Use a test light instead.

@BrianMann216 11 ай бұрын

I will try that when I get back to it, I think depending on the test light it may light dimmly. Another thing I should have done is check the current flow with an amp clamp. In the experimenting I am doing for the follow up videos I am seeing many of the relays I am messing with draw around 100-200mA @ 13 volts, and the secondary side staying closed with as little as 65mA @ < 2 volts. This is a fun learning experience. Thanks for watching as always!

@JOHNPHUFNAGEL 10 ай бұрын

How would you warranty this, or would you? You said you replaced this ecm for a no crank a while back and now it's an always crank. The regular customer will say you didn't do something write. Great video!

@BrianMann216 10 ай бұрын

It is a rough situation for sure, the 1st shop is warranting the pcm for the second shop that the vehicle was at. Both shops are trying to do what is right and fair for the customer. I did not diag the 1st time around , just programming. I am not sure if it's just an odd coincidence or is something else going on here.

@robertfrancisco1193 11 ай бұрын

i am going to take a guess and say its a relay that has seen better days. powered up shorted relay keeping points together. when you unplugged it makes points open making light go off. but i could be wrong.

@BrianMann216 11 ай бұрын

I'm concerned with the voltage om the primary side. I will probably get a new relay for good measure and test as well

@Usmanthemecano 11 ай бұрын

Clearly the pcm is the issue.

@mrblonde2013 11 ай бұрын

Question: at the end of the diag you called a pcm, how could you tell the difference between a pcm issue ( driver, capacitor , internal circuit) or an external issue ( shorted wiring or sensor/actuator) to that pcm? Thanks Brian.

@BrianMann216 11 ай бұрын

I am basing that off the crank request and command at the pcm, and the fact that we do get proper voltage when going to the crank position. Cant wait for the warranty PCM to arrive to find out !

@nickanderson2189 11 ай бұрын

Could the fuse block possibly have corrosion in it? With key on fuse block alive you get 12 volts relay unplugged. But when you turn the key shutting off power to the fuse block the 12 volts goes away. Plus the coverage drop when you plug the relay back in screams corrosion in fuse block. Is that a printed circuit board fuse block or just connectors.

@nickanderson2189 11 ай бұрын

Voltage drop. Not coverage drop lol.

@chrisi1909 11 ай бұрын

I wonder : Would a little test light paralell to the Primary Side of the Relay pull down the Voltage enogh that the Relay shuts back off , even with the 1,8V from the Computer side ?

@BrianMann216 11 ай бұрын

That's a great idea, I was thinking of a resistor, maybe 300ohms or so to see what happens . Still waiting for a ecm.

@philh9238 11 ай бұрын

You going to use to topdon t ninja box to clone it? Make a video on how to clone?

@BrianMann216 11 ай бұрын

I have videos on membership site of some cloning

@sheerwillsurvival2064 11 ай бұрын

GDS1 and GDS2 ?? What is it exactly the difference

@BrianMann216 11 ай бұрын

Gds was when you could install the software and launch it with out the internet. Gds 2 is part if the tech line suite

@sheerwillsurvival2064 11 ай бұрын

@@BrianMann216 oh ok thanks. Trying to learn 👊🏻👍🏻

@sheerwillsurvival2064 11 ай бұрын

Those stuffed animals have seen better days 😅

@DependableAutoTruck 11 ай бұрын

i wish auto manufacturers could understand some systems do not need computer to start. Push to start was back in the 1950's no computer. and many years after ign switch did the job just fine with out a computer. some parts of a vehicle should remain simple and we wouldn't have these problems. someone steals your radio on a new vehicle and now you can't drive home radio shouldn't have anything to do with the running of a vehicle Tech has gotten out of hand

@BrianMann216 11 ай бұрын

And this one is key start, and all these issues