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EPS indicator does not go off, and no DTCs are stored

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition switch to LOCK (0).
  2. Check the No. 11 (7.5 A) fuse in the under-dash fuse/relay box.

    Is the fuse blown? 

    YES  -Replace the fuse. Turn the ignition switch to ON (II), then turn it to LOCK (0) again. If the fuse blows again, repair the short to ground on the No. 11 (7.5 A) fuse circuit.

    NO  -Reinstall the checked fuse, then go to step 3.

  3. Check the No. 58 (30 A) fuse in the under-dash fuse/relay box.

    Is the fuse blown? 

    YES  -Replace the fuse. Turn the ignition switch to ON (II), then turn it to LOCK (0) again. If the fuse blows again, repair the short to ground on the No. 58 (30 A) fuse circuit.

    NO  -Reinstall the checked fuse, then go to step 4.

  4. Do the gauge control module self-diagnostic function (see SELF-DIAGNOSTIC FUNCTION ).

    Is the gauge control module OK? 

    YES  -Go to step 5.

    NO  -Replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).

  5. Turn the ignition switch to LOCK (0).
  6. Disconnect EPS control unit connector C (16P).
  7. Turn the ignition switch to ON (II).
  8. Measure the voltage between EPS control unit connector C (16P) terminal No. 8 and body ground.
    Fig 1: Measuring Voltage Between EPS Control Unit Connector C (16P) Terminal No. 8 And Body Ground
    G06430505Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  -Go to step 9.

    NO  -Repair an open in the wire between the EPS control unit and No. 11 (7.5 A) fuse in the under-dash fuse/relay box.

  9. Turn the ignition switch to LOCK (0).
  10. Disconnect EPS control unit connector A (2P).
  11. Measure the voltage between EPS control unit connector A (2P) terminal No. 2 and body ground.
    Fig 2: Measuring Voltage Between EPS Control Unit Connector A (2P) Terminal No. 2 And Body Ground
    G00500447Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  -Go to step 12.

    NO  -Repair an open in the wire between the EPS control unit and No. 2 (60 A) fuse in the battery terminal fuse box.

  12. Check for continuity between EPS control unit connector A (2P) terminal No. 1 and body ground.
    Fig 3: Checking Continuity Between EPS Control Unit Connector A (2P) Terminal 1 And Body Ground
    G06430506Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Go to step 13.

    NO  -Repair an open in the wire between the EPS control unit and body ground (G402).

  13. Disconnect the gauge control module 32P connector (see GAUGE CONTROL MODULE REPLACEMENT ).
  14. Check for continuity between the EPS control unit connector C (16P) terminals and the gauge control module 32P connector terminals individually.
    EPS CONTROL UNIT CONNECTOR TERMINAL CHART

    Sigh EPS Control Unit Connector C (16P) Terminal Gauge Control Module 32P Connector Terminal
    CANL 9 19
    CANH 10 20
    Fig 4: Checking Continuity Between EPS Control Unit Connector C (16P) Terminals And Gauge Control Module 32P Connector Terminals
    G06430507Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Check for loose terminals in the EPS control unit connectors, and repair if necessary. If no poor connections are found, replace the EPS control unit (see EPS CONTROL UNIT REMOVAL/INSTALLATION ).

    NO  -Repair an open in the wire between the EPS control unit and the gauge control module.

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