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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC P0815, P0816 Or P0826: Up And Down Shift Switch Circuits >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
WARNING:

Refer to Parking Brake and Drive Wheels Warning .

  1. Ignition - On/Vehicle - In Service Mode
  2. Operate the component: S3 Transmission Shift Lever - L

    Verify the scan tool parameter: Driver Shift Control Mode Switch @ Body Control Module = Active or On

    • If not the specified state 

      Refer to Circuit/System Testing

    • Go to next step: If the specified state 
  3. Press and hold the switch: S2 Transmission Manual Shift Switch - Upshift

    Verify the scan tool parameter: Driver Shift Control Mode Switch = Up or Upshift

    • If not the specified state 

      Refer to Circuit/System Testing

    • Go to next step: If the specified state 
  4. Press and hold the switch: S2 Transmission Manual Shift Switch - Downshift

    Verify the scan tool parameter: Driver Shift Control Mode Switch = Down or Downshift

    • If not the specified state 

      Refer to Circuit/System Testing

    • Go to next step: If the specified state 
  5. 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 
  6. All OK.
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