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Home >> Buick >> 2017 >> Verano Base, Gas >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering System >> Diagnostic Information and Procedures >> DTC C047A: Electric Steering Motor Position Sensor Circuit >> Circuit/System Testing
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Circuit/System Testing

  1. Verify that the connector at the B137 Power Steering Shaft Torque Sensor is not damaged or have water intrusion/corrosion.
    • The B137 Power Steering Shaft Torque Sensor connector is not OK 

      Replace the steering gear.

    • The B137 Power Steering Shaft Torque Sensor connector is OK 
  2. With a scan tool perform the Power Steering Control Module Calibration procedure Steering Angle Sensor Centering and Software Endstop Learning. Refer to Power Steering Control Module Calibration .
  3. Verify that DTC C047A does not set.
    • If the DTC does set

      Replace the K43 Power Steering Control Module.

    • If the DTC does not set
  4. All OK.
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