DTC 61-03: Open in the EPS Motor Harness (Regular Diagnosis)

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.

Turn the ignition switch to ON (II).
Clear the DTC with the HDS.
Turn the ignition switch to LOCK (0).
Start the engine.
Turn the steering wheel to full left or full right, and hold the steering wheel for 10 seconds or more.
Check for DTCs with the HDS.
Is DTC 61-03 indicated?

YES -Go to step 7.

NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the EPS motor and the EPS control unit.
Turn the ignition switch to LOCK (0).
Disconnect EPS control unit connector B (2P) and the EPS motor 2P connector.
Check for continuity between EPS control unit connector B (2P) terminal No. 2 and EPS motor 2P connector terminal No. 1.

Fig 1: Checking Continuity Between EPS Control Unit Connector B (2P) Terminal 2 And EPS Motor 2P Connector Terminal 1
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 10.

NO -Repair an open in the wire between the EPS control unit and the EPS motor.
Check for continuity between EPS control unit connector B (2P) terminal No. 1 and EPS motor 2P connector terminal No. 2.

Fig 2: Checking Continuity Between EPS Control Unit Connector B (2P) Terminal 1 And EPS Motor 2P Connector Terminal 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 11.

NO -Repair an open in the wire between the EPS control unit and the EPS motor.
On the EPS motor side, check for continuity between EPS motor 2P connector terminals No. 1 and No. 2.

Fig 3: Checking Continuity Between EPS Motor 2P Connector Terminals 1 And 2
Courtesy 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 -Replace the EPS motor (see EPS MOTOR REMOVAL AND INSTALLATION ).