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GMC TSB #PIT4649B
2009 GMC Acadia
TSB Document:
Affected Component: EXTERIOR LIGHTING
- Summary
- This Preliminary Information communication provides information to the technician about vehicles that have Service Engine Soon Malfunction Indicator Lamp on and or the battery going dead overnight. Technician may find a 4.1 ampere draw. Technician will need to back out pin 1 of connector 2 at the Body Control Module and see if the draw goes away. If the draw goes away, check for an aftermarket accessory that is improperly wired into circuit 1732.
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