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B3840 Diagnostic Trouble Code Discussion for June 2009

park lamps circuit low

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Trouble Ticket Help Requests for DTC B3840
Help Request Posted
2001 Pontiac Aztek 3.4L Poor Idle Quality VIN: 3G7DA03E21
B3840: park lamps circuit low. Hello everyone & thanks for taking time out of your busy day to read my help request. I have this 2001 Pontiac Aztek that has a high idle at times. This never happens until the vehicle has been driven for a few miles. Go to start it up, idles fine. Drive f...
June 25, 2009