Honda Accord ESM 2003 · Service Manual Service Manual 2003

DTC Troubleshooting: 3 (EPS)

DTC Troubleshooting: 3

DTC 3:  Lower FET Stuck ON


1.Disconnect EPS control unit connector A (2P) and the motor 2P connector.

2.Check for continuity between EPS control unit connector A (2P) terminal No. 2 and motor 2P connector terminal No. 2.

SEA3E31K72200081030FAAD01EPS CONTROL UNIT
CONNECTOR A (2P)
Wire side of female terminalsMOTOR 2P CONNECTORMTR+ (RED)M+ (RED)

Is there continuity?


YES - Go to 3.


NO - Repair open in the wire between  EPS control unit and motor.n


3.Check for continuity between EPS control unit connector A (2P) terminal No. 1 and motor 2P connector terminal No. 1.

SEA3E31K72200081030FAAD02EPS CONTROL UNIT
CONNECTOR A (2P)
Wire side of female terminalsMOTOR 2P CONNECTORMTR- (GRN)M- (GRN)

Is there continuity?


YES - Go to 4.


NO - Repair open in the wire between  EPS control unit and motor.n

4.Check for continuity between EPS control unit connector A (2P) terminals No. 2 and No. 1.

SEA3E31K72200081030FAAD03M+ (RED)M- (GRN)EPS CONTROL UNIT CONNECTOR A (2P)Wire side of female terminals

Is there continuity?


YES - Repair short between RED and GRN wires for the EPS motor circuit.n


NO - Check for loose wires or poor connections at the EPS control unit and motor connections. If necessary, substitute a known-good EPS control unit and recheck.n