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Home >> Chevrolet >> 2023 >> Camaro ZL1, 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 25 (Automatic Transmission - 8L45 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0815, P0816, P0826, or P1876 >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition - On/Vehicle - In Service Mode
  2. Operate the component: S3 Transmission Shift Lever = M
  3. Verify the scan tool parameter: Driver Shift Control Mode = Active
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  4. Operate the component: S3 Transmission Shift Lever = Forward

    Verify the scan tool parameter: Up and Down Shift Switch = Up or Upshift

    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  5. Operate the component: S3 Transmission Shift Lever = Rearward

    Verify the scan tool parameter: Up and Down Shift Switch = Down or Downshift

    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  6. 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 
  7. All OK.