LEMON Manuals: Even more car manuals for everyone: 1960-2025
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 39-03: EPS Control Unit Internal Circuit (Power Self-Holding Circuit)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC 39-03: EPS Control Unit Internal Circuit (Power Self-Holding Circuit)

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

With the Driving Pattern:

  • 1.

    Start the engine.

  • 2.

    Press the engine start/stop button to select the OFF mode.

  • 3.

    Wait more than 30 seconds.

  • 4.

    Press the engine start/stop button to select the ON mode.

Execution After engine start/stop button is selected to OFF mode
Duration About 30 seconds
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
  • EPS control unit internal failure