## EPS Components

#### DTC Troubleshooting (cont'd)

17-81

13. Turn the ignition switch OFF.

14. Disconnect the ECM/PCM connector E (31P) connector.
15. Check for continuity between the EPS control unit connector C (20P) terminal No. 19 and the ECM/PCM connector E (31P) terminal No. 26.

    ECM/PCM CONNECTOR E (31P)

Is there continuity?

YES - Go to step 16.

NO - Repair open in the wire between the EPS control unit and ECM/PCM.

16. Disconnect the gauge assembly 22P connector.
17. Check for continuity between the EPS control unit connector C (20P) terminal No. 19 and body ground.

    EPS CONTROL UNIT CONNECTOR C (20P)

Wire side of female terminals

Is there continuity?

YES - Repair short to body ground in the wire between the EPS control unit and the ECM/PCM.

NO - Check for loose EPS control unit connectors. If necessary, substitute a known-good EPS control unit and recheck.

DTC 37: EPS Control Unit Internal Circuit (Input Circuit For Motor Voltage)

1. Clear the DTC.
2. Start the engine.
3. Turn the steering wheel from lock-to-lock several times, and wait 10 seconds or more.

Does the EPS indicator come on?

YES - Go to step 4.

NO - The system is OK at this time.

4. Stop the engine, and verify the DTC.

Is DTC 37 indicated?

YES - Check for loose EPS control unit connectors. If necessary, substitute a known-good EPS control unit and recheck.

NO - Perform the appropriate troubleshooting for the code indicated.