Hello,
To be succinct, my vehicle isn't starting. (:
I am able to jump the relay with a paperclip, and it fires up. So, the solenoid and battery are in good shape.
I have dash lights, and when I turn my ignition to "start" all the dash lights go out momentarily as if the vehicle will start. So apparently the ignition itself is OK. But the vehicle doesn't start. There's just the sound of a relay or two clicking.
I've swapped out the ignition relay, and it doesn't change anything. So, it's not a bad relay apparently.
The only thing that I know of that may be the culprit is either a grounding issue or one of the computers.
I've tested the resistance from the negative terminal of the battery to the engine engine, and I have next to no resistance. So everything should be grounded well. That leaves the computers as the culprit.
I was about to send in my BCM for testing and possible repair, because it has 71 trouble codes in it, and I've had quite a few other odd issues crop up all of a sudden. However, I thought that ignition was more of an ECM thing. And some of the other electrical issues I've had have been engine related. So, I don't know why the BCM would have all the trouble codes if the symptoms are more engine related.
But I know the computers are all interconnected.
If someone knows how I can single out either the ECM or the BCM as the culprit, it could save me an expensive process of elimination. Thanks!
To be succinct, my vehicle isn't starting. (:
I am able to jump the relay with a paperclip, and it fires up. So, the solenoid and battery are in good shape.
I have dash lights, and when I turn my ignition to "start" all the dash lights go out momentarily as if the vehicle will start. So apparently the ignition itself is OK. But the vehicle doesn't start. There's just the sound of a relay or two clicking.
I've swapped out the ignition relay, and it doesn't change anything. So, it's not a bad relay apparently.
The only thing that I know of that may be the culprit is either a grounding issue or one of the computers.
I've tested the resistance from the negative terminal of the battery to the engine engine, and I have next to no resistance. So everything should be grounded well. That leaves the computers as the culprit.
I was about to send in my BCM for testing and possible repair, because it has 71 trouble codes in it, and I've had quite a few other odd issues crop up all of a sudden. However, I thought that ignition was more of an ECM thing. And some of the other electrical issues I've had have been engine related. So, I don't know why the BCM would have all the trouble codes if the symptoms are more engine related.
But I know the computers are all interconnected.
If someone knows how I can single out either the ECM or the BCM as the culprit, it could save me an expensive process of elimination. Thanks!
Jul 3, 2023 at 2:57 PM
