## EPS Components

#### DTC Troubleshooting (cont'd)

17-90

DTC 62: EPS Control Unit Internal Circuit (Fail-safe Relay Stuck ON)

1. Clear the DTC.
2. Start the engine.

Does the EPS indicator come on?

YES - Go to step 3.

NO - The system is OK at this time.

3. Stop the engine, and verify the DTC.

Is DTC 62 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.

DTC 64: Battery Voltage is Excessively Low (Fail-safe Relay Contact Failure and Motor Voltage Fall Off)

1. Clear the DTC.
2. Start the engine.

Does the EPS indicator come on?

YES - Go to step 3.

NO - The system is OK at this time.

3. Stop the engine, and verify the DTC.

Is DTC 64 indicated?

YES - Go to step 4.

NO - Perform the appropriate troubleshooting for the code indicated.

4. Check the No. 18 (60A) fuse in the under-hood fuse/relay box, and reinstall the fuse if it is OK.

Is the fuse OK?

YES - Go to step 5.

NO - Replace the fuse and recheck.

5. Disconnect the EPS control unit connector A (2P).
6. Measure the voltage between the EPS control unit connector A (2P) terminal No. 1 and body ground.

   EPS CONTROL UNIT CONNECTOR A (2P)

Wire side of female terminals

Is there battery voltage?

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

NO - Repair open in the WHT/BLU wire between the No. 18 (60A) fuse and EPS control unit.