52-08

EPS DTC Troubleshooting: 52-08

DTC 52-08:

Torque Sensor Power Supply

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0).

4. Start the engine.

5. Check for DTCs with the HDS.

Is DTC 52-08 indicated?

YES -

Go to step 6.

NO -

Intermittent failure, the system is OK at this time.

6. Turn the ignition switch to LOCK (0).

7. Disconnect EPS control unit connector B (16P) Service and Repair.

8. Turn the ignition switch to ON (II).

9. Measure the voltage between EPS control unit connector B (16P) terminal No. 1 and body ground.





Is there battery voltage?

YES -

Repair a short to power in the wire harness between the EPS control unit and the torque sensor.

NO -

Go to step 10.

10. Turn the ignition switch to LOCK (0).

11. Check for continuity between EPS control unit connector B (16P) terminal No. 1 and body ground.





Is there continuity?

YES -

Go to step 12.

NO -

Go to step 14.

12. Disconnect the torque sensor 6P connector.

13. Check for continuity between EPS control unit connector B (16P) terminal No. 1 and body ground.





Is there continuity?

YES -

Repair a short to body ground in the wire harness between the EPS control unit and the torque sensor.

NO -

Replace the steering gearbox Steering Gearbox Removal/Installation.

14. Substitute a known-good EPS control unit Service and Repair.

15. Start the engine.

16. Check for DTCs with the HDS.

Is DTC 52-08 indicated?

YES -

Replace the steering gearbox Steering Gearbox Removal/Installation.

NO -

Replace the original EPS control unit Service and Repair.