ATSG CONFIRMED FIX - MARCH 2024
2011 GMC Sierra 2500 6.6L Allison 1000
Complaint: Truck came in going into failsafe from setting code P0962 - main modulator solenoid low voltage.
Cause: Damaged wire in harness by exhaust pipe mounting bolt.
Correction: Remove tubing from around the harness and repair the damaged wire.
Part numbers related to the repair: N/A
Year Make and Model of the Vehicle: 2011 GMC Sierra 2500 6.6L
Mileage: N/A
Shop Name: Matt's Transmission
Transmission: Allison 1000
Additional Notes: If you take the inner fender out it will make it easier to get to the harness. The harness was rubbing on the exhaust bolt as seen in the pictures, the wire is dark blue in color.
Pictures/Diagram: Check photos below
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