Originally Posted by
pizzaguy
I don't assume anything, I verify. Making measurements that might be invalid is a waste of time. I earned a living from 1980 to 2011 troubleshooting electronic equipment to the component level. If your test data is not verified, your test results mean nothing. If you have 12 volts on a wire but test with a meter that has no ground, you will see 0 volts when there is really 12 volts there.
All battery feeds should show 11 to 12.6 volts with the engine off. Give it another 1-2 volts with engine idling.
DO NOT try to measure the wires of the CAN BUS, their readings mean nothing.
Yes sir thanks, I’ve verified the meter is getting 12v from my battery, I also verified that ground as being good I can confirm pins 2 and 4 suggested in the manual are dead. Where do I go from here? I think it’s very strange how this happened the unit worked fine until a trunk leak, after that it was sporadic I ordered a used one off eBay now since the car sat all of a sudden those wires are not getting power.