mr_s
Member
I've had a look through a load of posts, and just want to check that my reasoning is sound...
Pressing the tailgate button does nothing, it has to be opened with a handy piece of wire that the PO left for me.
My diagnostic procedure thus far:
Check that all doors lock and unlock from fob and key: Yep, all working fine
Check for continuity across the tailgate switch: Works fine, pressing the switch makes connection
Check for power at the switch wire: Yep, voltage as expected
Check operation of 'moving parts': Removed from tailgate and checked with separate power souce, all working
Check for ground: No ground
I figure my problem has to be the lack of ground. Is this picked up from the CDL switch in the drivers door? Obviously I could just permanently ground it, but that would mean the tailgate would never be locked and would permanently open, correct? Which connector/wire from the BECM provides ground for the tailgate, as I guess I could (temporarily) splice into that and run a wire to the tailgate to test it?
Cheers, Martin
Pressing the tailgate button does nothing, it has to be opened with a handy piece of wire that the PO left for me.
My diagnostic procedure thus far:
Check that all doors lock and unlock from fob and key: Yep, all working fine
Check for continuity across the tailgate switch: Works fine, pressing the switch makes connection
Check for power at the switch wire: Yep, voltage as expected
Check operation of 'moving parts': Removed from tailgate and checked with separate power souce, all working
Check for ground: No ground
I figure my problem has to be the lack of ground. Is this picked up from the CDL switch in the drivers door? Obviously I could just permanently ground it, but that would mean the tailgate would never be locked and would permanently open, correct? Which connector/wire from the BECM provides ground for the tailgate, as I guess I could (temporarily) splice into that and run a wire to the tailgate to test it?
Cheers, Martin