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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Automatic Transmission - VT40 (MRG) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0964-P0968, P0970, P0971, P2670, P2671, P2727, P2729, or P2730 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Engine - Running
  2. Verify the scan tool parameter:
    • High Side Driver 2 Circuit High Voltage Test Status = Not Run or OK
    • High Side Driver 2 Circuit Low Voltage Test Status = Not Run or OK
    • High Side Driver 2 Circuit Open Test Status = Not Run or OK
    • Transmission Control Solenoid Valve 2, 3, 5 Control Circuit High Voltage Test Status = Not Run or OK
    • Transmission Control Solenoid Valve 2, 3, 5 Control Circuit Low Voltage Test Status = Not Run or OK
    • Transmission Control Solenoid Valve 2, 3, 5 Control Circuit Open Test Status = Not Run or OK
    • If not the specified state 

      Refer to Circuit/System Testing

    • Go to next step: If the specified state 
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

    Verify the DTC does not set.

    • If the DTC sets 

      Refer to Circuit/System Testing

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