VY No crank, No ECU, No Windows, No central Locking Just got the SS running last week, turned out to be a RESOLVED

[Fu Manchu]

I’d first go to the OBD port. Undo it. Back probe the pins to see if it’s a loose pin in the port.
Use a fine pin to get contact from the back or careful placement of a test light on the back of the plug.

 

[brado1357]

I’d first go to the OBD port. Undo it. Back probe the pins to see if it’s a loose pin in the port.
Use a fine pin to get contact from the back or careful placement of a test light on the back of the plug.

Been away for work so only now got a chance to look at things.
Only getting around 1V on the OBD pin when removed.

 

[Immortality]

Hi all
VY SS LS1 Auto
I've brought someone else's project, the engine has been out of the car for 1 year and now I've put it back together but it wont start.

Issues I've found so far
No central locking
No power windows
No OBD2 port power
No fuel pump
No crank

No central locking or power windows suggests a BCM issue. A lack of communication also points to the BCM as it is the Bus master IIRC.

I'd be looking to make sure the BCM is getting power for starters.

 

[brado1357]

No central locking or power windows suggests a BCM issue. A lack of communication also points to the BCM as it is the Bus master IIRC.

I'd be looking to make sure the BCM is getting power for starters.

Pulled it out, and BCM seems to be getting power. Using this diagram I found pins 13 and 22 both had 12V constant but pin 2 (accessory) had no power not sure if this is output from the BCM.
But that seems to be good, opened up the BCM and no sign of issues nothing burnt out.
https://www.ls1gto.com/threads/does-anyone-have-a-bcm-wiring-diagram.485777/

 

[brado1357]

No central locking or power windows suggests a BCM issue. A lack of communication also points to the BCM as it is the Bus master IIRC.

I'd be looking to make sure the BCM is getting power for starters.

I’d first go to the OBD port. Undo it. Back probe the pins to see if it’s a loose pin in the port.
Use a fine pin to get contact from the back or careful placement of a test light on the back of the plug.

OBD port is only getting 1V, pulled the PIM and it has good 12V and Ground and pins 15 and 16.
This suggests to me that PIM is the issue according to this https://injectronics.com.au/resources/blog/holden-commodore-vy-vz-pim-module/
I just ran external power to the OBD power pin and the immobilizer light is now flashing and the power window relay is constantly clicking.

 

[Immortality]

My bad, I forgot about the PIM. Looks like you are making progress.

 

[brado1357]

Just got the SS running last week, turned out to be a faulty BCM.