Intermittent SES Light DTC P0641 With Potentially Multiple Other DTCs Set - keywords code DTC 3.6L ground lamp LY7 MH2 P2101 P0542 P0532 P0522 P0452 P0341 P0335 P0107 B0268 C0242 short STG 6speed tran
| Subject: | Intermittent SES Light, DTC P0641 with Potentially Multiple Other DTCs Set |
| Models: | 2008 Chevrolet Malibu (GMX-386) with the 3.6L (LY7) |
| 2007-2008 Saturn Aura built with the 3.6L (LY7) |
| 2008 Pontiac G6 built with the 3.6L (LY7) |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Intermittent SES light, DTC P0641 (5 volt ref ckt 1 short to ground) with potentially any of the below DTCs set.
"possible DTCS REFERENCE VOLTAGE P0641, P2101, P0542, P0532, P0522, P0452, P0341, P0335, P0107, B0268, C0242"
This condition could be caused by a PCM circuit shorted to ground. The PCM Ckt 2700 shorts to ground due to damage from the black trans cover stud. Looking into front of vehicle underhood, stud is on right side of black trans cover and is the second bolt down off the top right (driver side) of the cover. It is the only bolt with a stud coming outward.
Recommendation/Instructions:
Repair ckt/harness, rerouted/secured pcm harness a way from this stud.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
