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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1373 (Automatic Transmission - 6L80/6L90 - DTC P0218 To DTC P0963) >> DTC P06AC, P06AD, or P06AE >> 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 condition for running and setting the DTC.
  2. Shut the ignition OFF for 30 seconds, and verify that the DTC does not reset.
    • If the DTC resets, replace the control solenoid (w/body and TCM) valve assembly.
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