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Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 247 (Automatic Transmission - 6T40 (MNH MNK) Or 6T45 (MHG) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0601-P0604 or P062F >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2021 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On / Vehicle - In Service Mode
  2. Verify DTC P0602 is not set.
    • If the DTC is set 

      Program the control module: K71 Transmission Control Module

    • Go to next step: If the DTC is not set 
  3. Verify DTC P0601, P0603, P0604, P062F is not set.
    • If the DTC is set 

      Replace the component: Q8 Control Solenoid Valve Assembly

    • Go to next step: If the DTC is not set 
  4. All OK.
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