Please HELP!! VX Commodore 2001 Auto V6 All Warning Lights Flashing!!!

[Nut Kracker]

Well done to both of you.
It's a good fix and it's saved the OP a fist full of cash too.

But it may be a good idea just to check the YE112 plug.
You never know, it might be just as simple as a bad connection.

 

[lout]

yes we checked all 3 plugs and op sent me photos to double check

 

[Nut Kracker]

Cool......
Well in that case, sit back, grab a stubbie and enjoy the fix.

As I said.....well done to both of you for the fix.

 

[j_ds_au]

Good to hear you've got this one on the ropes!

I guess the mechanic just checked the voltage on OBD pin 16, the check of pin 9 voltage may have revealed/suggested the ECU/PCM was unpowered (although I wonder if the BCM would have supplied voltage on that pin anyway).

Joe.

 

[lout]

pin 9 had 5v
must be output from BCM

 

[Nut Kracker]

Pin 9 (Red/Black wire) is serial data from The PCM (C13) to the BCM (connector 3) .
It just branches out to pin 9 on the OBD port.

 

[TazzI]

Ahh good to see this got sorted! Great work!

 

[j_ds_au]

pin 9 had 5v
must be output from BCM

Thanks for confirming (I've made a mental note!).

Joe.

 

[j_ds_au]

Pin 9 (Red/Black wire) is serial data from The PCM (C13) to the BCM (connector 3) .
It just branches out to pin 9 on the OBD port.

Except for a 5 second period after starting the car (as I recall), pin 9 is also linked via a relay in the BCM to the remaining ALDL modules.

Joe.