Reset PCM

Asked by Guru82K2Z Jan 07, 2020 at 09:12 AM about the 2004 Chevrolet Trailblazer LS 4WD

Question type: Maintenance & Repair

Do I disconnect the battery after disconnecting fuse #10 and #28 for an hour

1 Answer
11,605

FJ4072 answered 4 years ago

No, removing those fuses, resets the PCM. I discourage against disconnecting the battery, as the HVAC actuators can burnout on you. Crazy design flaw.

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