## DTC Troubleshooting: 43

DTC 43: | Motor Driven Current is Excessive High

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 4. NO - The system is OK at this time.n

4. | Stop the engine, and verify the DTC. Is DTC 43 indicated? YES - Go to 5. NO - Perform the appropriate troubleshooting for the code indicated.n

5. | Make sure the ignition switch is OFF.

6. | Disconnect the negative cable from the battery.

7. | Disconnect the EPS control unit connector A (4P), the motor relay 4P connector and the motor 2P connector.

8. | Reconnect the negative cable to the battery.

9. | Turn the ignition switch ON (II).

10. | Measure the voltage between the EPS control unit connector A (4P) terminal No. 1 and body ground. Is there battery voltage? YES - Repair short to power in the + circuit wire between the EPS control unit and motor relay.n NO - Go to 11.

11. | Measure the voltage between the EPS control unit connector A (4P) terminal No. 3 and body ground. Is there battery voltage? YES - Repair short to power in the + circuit wire between the EPS control unit and motor.n NO - Go to 12.

12. | Measure the voltage between the motor relay 4P connector terminal No. 1 and body ground. Is there battery voltage? YES - Repair short to power in the + circuit wire between the motor relay and motor.n NO - Go to 13.

13. | Turn the ignition switch is OFF.

14. | Check for continuity between the EPS control unit connector A (4P) terminal No. 1 and No. 3. Is there continuity? YES - Repair short between the GRN and RED wires in the motor circuit between the EPS control unit and motor.n NO - Go to 15.

15. | Check for continuity between the EPS control unit connector A (4P) terminal No. 3 and the motor relay 4P connector terminal No. 1. Is there continuity? YES - Repair short between the RED and WHT/RED wires in the motor circuit between the EPS control unit and motor.n NO - Go to 16.

16. | Check for continuity between the EPS control unit connector A (4P) terminal No. 3 and the motor relay 4P connector terminal No. 4. Is there continuity? YES - Repair short between the GRN and BLK wires in the motor circuit between the EPS control unit and motor.n NO - Go to 17.

17. | Disconnect the negative cable from the battery.

18. | Substitute a known-good EPS control unit, and connect the all disconnected connectors.

19. | Reconnect the negative cable to the battery.

20. | Start the engine. Does the EPS indicator come on? YES - Go to 21. NO - Check for loose EPS control unit connectors. If necessary, substitute a known-good EPS control unit and retest.n

21. | Stop the engine, and verify the DTC. Is DTC 43 indicated? YES - Check for loose EPS control unit connectors, motor connector and power relay connector. If necessary, substitute a known-good steering gearbox and recheck.n NO - Perform the appropriate troubleshooting for the code indicated.n