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Problems/Service/RepairsIf you have a problem with your HHR, want a tip on repairing or performing a particular service to you HHR here is the place to post!
You meant the Negative battery cable of course, disconnecting the positive cable can spike the electronics compounding the problems.
And before attempting to clear any codes, you should try to have them read again.
If the scan tool is "failing to communicate" with your HHR, check the fuse for the cigarette lighter, if it's blown...the diagnostic port will not function.
Sorry to correct you on that specific statement about the cigarette lighter fuse. My 06 HHR LT 2.4 OBDII scan port works just fine whether or not the lighter fuse is good or not or even missing. And I'm not sure how my wife kept blowing that damn fuse but I just quit replacing it 2 years ago. And the obd is working today just fine. Don't get me wrong it has all kinds of problems but that specific thing was incorrect
1st off. The thread you’re responding to is 9 years old.
2nd. The person you are trying to correct passed away several years ago. His user name even shows him as being deceased.
Someone must have tinkered with your wiring then, because he's not wrong. Pulling the fuse with key on, OBD2 reader on, caused my OBD2 reader to lose power.
The reason the fuse keeps blowing is because it is NOT a cig lighter outlet, it IS a 12V auxiliary power outlet, unless you have RPO code DT4 (smoker package). There is a mechanical difference.
Maybe, whoever re wired the lighter hooked up to lower amp fuse.
This from the factory service manual, fuse #30 is the outlet in the back seat.
to the forums!!
