Honda Civic 2002-2003 Service Manual page 523

EPS Components
OTC Troubleshooting (cont'd)
7. Check for continuity between EPS control unit
connector C (20P) terminal No.3 and the torque
sensor
6P
connector terminal No.2.
EPS CONTROL UNIT CONNECTOR C (20P)
TOROUE SENSOR 6P CONNECTOR
Wire side of female terminals
Is there continuity?
YES-Go to step 8.
NO-Repair open in the wire between the torque
sensor and EPS control unit .•
8. Check for continuity between EPS control unit
connector C (20P) terminal No. 11 and body ground.
EPS CONTROL
UNIT
CONNECTOR C 120P)
Wire side of female terminals
Is there continuity?
YES-Repair short to body ground in the wire
between the torque sensor and EPS control unit .•
NO-Go to step 9.
17-32
9. Check for continuity between EPS control unit
connector C (20P) terminal No. 11 and the torque
sensor
6P
connector terminal No.3.
EPS CONTROL
UNIT
CONNECTOR C (20P)
TORQUE SENSOR 6P CONNECTOR
Vcc2 (GRN/YELI
Wire side of female terminals
Is there continuity?
YES-Go to step 10.
NO-Repair open in the wire between the torque
sensor and EPS control unit..
10. Substitute a known·good EPS control unit, and
connect all the disconnected connectors.
11. Start the engine.
Does the EPS indicator come on?
YES-Go to step 12.
NO-Check for loose or poor connections at the
EPS control unit and the torque sensor connectors.
If the connections are good, replace the EPS control
unit and recheck .•
12. Stop the engine, and verify the DIC.
Is DTC17 or DTC18 indicated?
YES-Replace the steering gearbox and recheck .•
NO- Perform the appropriate troubleshooting for
the code indicated .•