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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Automatic Transmission - 10L80 (MF6) - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC P0658, P0659, P2812, P2814, P2815, P281B, P281D Or P281E: Actuator High Control Circuit/Transmission Control Solenoid Valve Control 7-8 Circuit >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition On - Engine Running
  2. Verify the scan tool parameter:
    • High Side Driver 2 Circuit Open Test Status = Not Run or OK OK or Not Run
    • High Side Driver 2 Circuit Low Voltage Test Status = Not Run or OK
    • High Side Driver 2 Circuit High Voltage Test Status = Not Run or OK
    • Transmission Control Solenoid Valve 7, 8 Control Circuit Open Test Status = Not Run or OK
    • Transmission Control Solenoid Valve 7, 8 Control Circuit Low Voltage Test Status = Not Run or OK
    • Transmission Control Solenoid Valve 7, 8 Control Circuit High Voltage 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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