g35 sedan having lock/unlock wiring issue

Update: I checked out relay 2 again, the solder point 1 is constantly giving 12v so it's not ground at rest. What should I do?

First thing - I would NOT be probing the BCM with power applied to it - you are just asking to damage things even more by accidently shorting pins together. You should be able to do all the testing outside of the car with an ohm meter. How big is your "needle" if you can't probe relay contacts? That, too, has me concerned. Like I said in my previous post, if you look up the data sheet for the relays you should be able to find out what pin does what, and then verify all those signals are present (by ohming them out, not voltage testing). Com - output pin to actuators NC - ground NO - 12vdc You really may want to consider taking it to a mobile shop and beg them to take a look at it. Paying them $100 to fix your mistake now will still be cheaper then paying $500 plus dealer programming to replace the BCM.Kevin Pierson

KPierson wrote: First thing - I would NOT be probing the BCM with power applied to it - you are just asking to damage things even more by accidently shorting pins together. You should be able to do all the testing outside of the car with an ohm meter. How big is your "needle" if you can't probe relay contacts? That, too, has me concerned. Like I said in my previous post, if you look up the data sheet for the relays you should be able to find out what pin does what, and then verify all those signals are present (by ohming them out, not voltage testing). Com - output pin to actuators NC - ground NO - 12vdc You really may want to consider taking it to a mobile shop and beg them to take a look at it. Paying them $100 to fix your mistake now will still be cheaper then paying $500 plus dealer programming to replace the BCM.

I tried searching for the diagram, where would I be able to find one? I searched your website, but it only took me to the pinouts.

You would have to get the part number off the relay and search on the internet.Kevin Pierson

KPierson wrote: You would have to get the part number off the relay and search on the internet.

(Follow up for anyone else with this issue) Popped the circuit board and looked under it, a trace was burned the relays were fine though. Just bridged it back together and it works fine now.