Gday Scotty and community. When I start my 2006 Holden Commodore VZ Berlina with 267000km between…

OCO0012

Gday Scotty and community. When I start my 2006 Holden Commodore VZ Berlina with 267000km between auxiliary and tuning over the engine I loose power to the interment cluster, radio and power sauce. The abs light comes on beeps and then disappear as if noting is wrong. With no history codes or anything. This has gotten progressively worse overtime originally only flashing the abs for a micro second. When turning over the engine It also sounds like the battery is ever so slightly flat even when fully charged. I tried hooking up my multi-meter to see what the voltage drops to when cranking and it goes down to 9.64 volts on a 520cca battery. The car has been doing this for around two years awhile after I got the new battery. The battery has also been tested and it says it is a good battery. I believe what may be happening is the drop in voltage causes the CPU to reboot? My question is what is causing the issue if its not the battery? I'm thinking CPU, PMC or BCM Power supply unit? I have also replaced the ignition switch. My mechanic said I have to go to Holden, Holden told me go to an auto electrician, the electrician bounced me back to Holden. So I have basically decided I will fix it my self. But if you can tell me anything I would be very grateful

Comments (3)
No. 1-2
dil 89
dil 89

You may not have enough cca's for that car and it's draining the battery when you start it

Scotty Kilmer
Scotty Kilmer

Editor

voltage drop somewhere. Normally a wiring fault, but could be a computer failure, any computer module. Check the wiring closely though, load and ground test em all