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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission - 9T50 (M3E) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P176B, P176C, P176D or P17D3: Intermediate Speed Sensor Circuit >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition - On / Vehicle - In Service Mode
  2. Verify the scan tool parameter: 9V Reference 1 Circuit Status=OK
    • If not the specified state 

      Refer to Circuit/System Testing

    • If the specified state, go to next step 
  3. Raise and support the vehicle.
    CAUTION: Support the lower control arms in the normal horizontal position in order to avoid damage to the drive axles. Do not operate the vehicle in gear with the wheels hanging down at full travel.
  4. Start and idle the engine.
  5. Transmission in Drive
  6. Verify the scan tool parameter: Transmission Intermediate Speed Sensor=The value should change smoothly and gradually as the vehicle speed is increased and decreased.
    • If the value does not change smoothly and gradually 

      Refer to Circuit/System Testing

    • If the value changes smoothly and gradually 
  7. 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

    • If the DTC is not set, go to next step 
  8. All OK.
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