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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1733 (Automatic Transmission - 6L45/6L50/6L80/6L90 - DTC P0218 To DTC P0974) >> DTC P0711, P0712, or P0713 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine idling at normal operating temperature, verify the scan tool Trans Fluid Temp. parameter is between -74 and +174°C (-101 and +345°F).
    • If not within the specified range, replace the Q8 control solenoid valve assembly.
  2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the Transmission Fluid Temperature parameter and the TCM Temperature parameter with a scan tool. The Transmission Fluid Temperature parameter should increase by more than 2°C (3.5°F). Also, the Transmission Fluid Temperature parameter and the TCM Temperature parameter should be within 10°C (18°F) of each other.
    • If the Transmission Fluid Temperature parameter does not increase by more than 2°C (3.5°F) or the Transmission Fluid Temperature parameter is not within 10°C (18°F) of the TCM Temperature parameter, then replace the Q8 control solenoid valve assembly.
  3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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