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Home >> Acura >> 2017 >> RDX AWD >> Repair and Diagnosis (Single Page) >> Steering >> Electronic Steering >> Electronic Power Steering (EPS) System - Diagnostics >> Advanced Diagnostics >> DTC Advanced Diagnostics: EPS related DTCs (2013-18) >> DTC 71-02: Motor Angle Sensor (Neutral Position Learning of SIN/COS)
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DTC 71-02: Motor Angle Sensor (Neutral Position Learning of SIN/COS)

Confirmation Procedure Basic Condition:
  • Battery voltage 10 - 16 V

With the Driving Pattern:

  • 1.

    Start the engine.

  • 2.

    Wait more than 1 second.

Execution Initial Diagnosis
Duration About 1 second
DTC Type
  • 1 drive cycle
  • EPS indicator on
Fail Safe Action
  • Does not start EPS function/assist (Re-diagnose at the next IG-ON)
Possible Cause
  • Open, Short to ground, Short to power, or Poor connection between the EPS control unit and the steering gearbox (RESOLVER R1, R2, S1, S2, S3, S4 lines)
  • EPS motor internal failure (EPS motor angle sensor)
  • EPS control unit internal failure