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I had mentioned it in another post but it was ruled not a factor due to the dash OBD and fuel pump not working before I even tried to start it up without the earth. Auto Sparky said it could have effected the ECU but not the BCM, forget I mentioned it.

Seems contradictory to what else I've read but I understand it, it does seem thick for a street car. Will look into the oil pressure testing, any idea where to test oil pressure? The oil pressure sensor is a prick to get at on the back of the intake.

No idea, was able to borrow a bcm and key from a wrecker mate to try. Auto sparky linked it and she was away. I pulled the board out of the case and didn't see any sign of damage. I'd say something got fried when I tried to start the engine and forgot the main earth, either that or sitting for...

I have got my VY SS LS1 Auto Commodore running after buying it in pieces and almost 2 years of not running. The engine came out to do all the gaskets and seals. Have driven roughly 500 ks since the engine has gone back in. I have noticed a ticking/ knocking noise that comes and goes. In the...

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

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

I mentioned that in my previous post on diagnosing the fault but this was one more directed at the PIM itself so didn't think it was necessary.

That video has reminded me of something. I brought the car with the engine out as a forgotten project. One of the first things that happened was windscreen was replaced with the previous owner's insurance when I first got it and he needed the window up so I put a battery in it and wound the...

Cheers that’s a huge help will definitely look into these guys over the weekend. I have been probing from the front with a fine probe but I did try the back of the obd port as you recommended because of a potential loose pin. I supposed it doesn’t matter because everything has shown up fine...

No dont believe so

Hi, I've got a VY SS LS1 Auto. No crank, no ignition, no power windows, and no power to the OBD port. Both BCM and PIM have 12V and good ground. From what I can tell the OBD port gets power from the PIM so I assume this is faulty. I externally powered the OBD power pin and this caused the...

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...

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...

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

Couldn’t find a detailed pin out that matches the wires I’ve got. This is the only related thread I could find https://forums.justcommodores.com.au/threads/vz-uart-input-for-factory-headunit.290963/ Would that wire not being connected cause an issue? I can’t imagine that would cause the OBD port...

Mate came round and tried his fancy scan tool. No power to the OBD port. Pin 16 +ve has no voltage. Powered it externally and not able to read any systems. Any ideas? The factory head unit has been removed by the previous owner, the wires are all just sitting there. IS there CAN in the headunit...

Will a professional scan tool e.g Tech 2 work? My cheap scan tool isn't powering up. I know v6 VY use ALDL but I thought the ls1 used obd2. Maybe it just doesn't like it, ill get a mate with a good scan tool to have a look.

No, when is that required? How do you do that? Nothing has been replaced, just the engine out to do gaskets. Didn't think that was required unless something was replaced

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 The dash is working and...