2006 hhr no 5v key resistor signal at ignition switch
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Joined: 01-23-2009
Posts: 26,448
From: Fredericksburg,VA
Is the run/crank relay functioning? I think 5v ref comes from the ECM which is not powered until the run/crank relay energizes. Which then brings the PNP into question.
Has the butyl patch been addressed on this car? Look under the windshield cowl on the passenger side, if there is a gaping hole there it needs to be sealed and the BCM and blower/resistor are in question from water damage. To calm any other reader; this advice applies to 2006 models ONLY.
Has the butyl patch been addressed on this car? Look under the windshield cowl on the passenger side, if there is a gaping hole there it needs to be sealed and the BCM and blower/resistor are in question from water damage. To calm any other reader; this advice applies to 2006 models ONLY.
Thread Starter
New Member
Joined: 04-08-2024
Posts: 17
From: Texas
The problem is NOT in the ignition switch; put it back together and stop messing with it. The #! thing to do is pretend to be a giant gorilla and tighten those 4 bolts inside the underhood fuse box; probably a good idea to disassemble it and inspect the contacts, then tighten until it clicks a few times.
Only 2 wires on the ignition switch matter for the starter; the wht/blk and the wht. wht/blk is 5v ref and wht is run/crank
Post whatever diagram you are using, then I can have a look. I don't know which yellow wire you mean. You might mean the one that comes from the park/neutral switch on the trans; it supplies 12 v to the crank relay. Or, the one from the ECM that controls the ground side of the same relay.
here is a pdf of the diagram I'm looking at:
Attachment 49448
Only 2 wires on the ignition switch matter for the starter; the wht/blk and the wht. wht/blk is 5v ref and wht is run/crank
Post whatever diagram you are using, then I can have a look. I don't know which yellow wire you mean. You might mean the one that comes from the park/neutral switch on the trans; it supplies 12 v to the crank relay. Or, the one from the ECM that controls the ground side of the same relay.
here is a pdf of the diagram I'm looking at:
Attachment 49448
