DTC 33-03: FET Stuck ON (Overcurrent); DTC 33-04: FET Stuck ON (Failure); DTC 33-05: FET Stuck ON (Overcurrent Addition)

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 33-03, 33-04, or 33-05 indicated?

YES -Go to step 7.

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

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

Is there continuity?

YES -Go to step 10.

NO -Go to step 12.
Disconnect the EPS motor 2P connector.
On the EPS motor side, check for continuity between body ground and EPS motor 2P connector terminal No. 1, and terminal No. 2 individually.

Fig 2: Checking Continuity Between Body Ground And EPS Motor 2P Connector Terminal 1 And Terminal 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Replace the EPS motor (see EPS MOTOR REMOVAL AND INSTALLATION ).

NO -Repair a short to body ground in the wire between the EPS control unit and EPS motor.
Disconnect the EPS motor 2P connector.
Turn the ignition switch to ON (II).
Measure the voltage between body ground and EPS control unit connector B (2P) terminal No. 1, and terminal No. 2 individually.

Fig 3: Measuring Voltage Between Body Ground And EPS Control Unit Connector B (2P) Terminal 1 And Terminal 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES -Repair a short to power in the wire between the EPS control unit and the EPS motor.

NO -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 ).