52-02

EPS DTC Troubleshooting: 52-02

DTC 52-02:

Torque Sensor Power Supply (Initial Diagnosis)

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 52-02 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 body ground and EPS control unit connector B (16P) terminal No.1 and No. 5 individually.





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

12. Start the engine.

13. Check for DTCs with the HDS.

Is DTC 52-02 indicated?

YES -

Replace the steering gearbox Steering Gearbox Removal/Installation.

NO -

Replace the original EPS control unit Service and Repair.