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Electrical Gremlins after reinstalling motor - VX2 SS commodore

Richard O'Donoghue

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Mar 28, 2019
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VX SS S2 5.7 Auto
Hi everyone,

I need some advice. Last night I got my vx started back up for the first time after rebuilding the engine. I am now experiencing some issues today that I cannot seem to get my head around.

Here are the symptoms when I turn the car on:

Trac Off, Check Engine Light, oil light, Airbag light are all on.
ABS light occassionally flickers as well as the trac low light.
The car beeps and the SERV Error comes up on the trip screen.

Car appears to run just fine has plenty of power also. I have plugged in a mechpro OBD2 scanner and there are no error codes, all I found was I have an o2 sensor up the ****.

It appears the PCM is not talking with the car as the coolant temp gauge is no longer working.

All these issues started this morning. I have tried leaving the battery unplugged and pulled the bcm fuse. I have tried reseating the engine to bcm connectors. I just don't know what else to do. All grounds on the motor appear to be fine also.


Please help :'(
 

accentstencil

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WH II Caprice, 5.7 2017 Captiva.
It could be the ABS module stuffing up. Disconnect the ABS plug and see if any of the symptoms disappear.
 
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