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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1380 (Automatic Transmission - 6L80/6L90 - DTC P0967 To DTC P2764) >> DTC P1631 or P1630 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clear the DTC and operate the vehicle under the conditions for running and setting the DTC.
  2. Observe the High Side Driver CKT Status parameter. The parameter should display OK.
    • If the parameter displays Open, Short to Ground, Short to Voltage, or the DTC resets, replace the control solenoid (w/body and TCM) valve assembly. Refer to Control Module References for replacement, setup, and programming.
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