DTC 52-02: Torque Sensor Power Supply (Initial Diagnosis)
NOTE: Before you troubleshoot, review the general troubleshooting information .
| DTC Description | DTC | Freeze Frame |
|---|---|---|
| 52-02 Torque Sensor Power Supply (Initial Diagnosis) |
- 1. Problem verification:
1. Turn the vehicle to the ON mode.
2. Clear the DTC with the HDS.
3. Turn the vehicle to the OFF (LOCK) mode, then start the engine.
4. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame 52-02 Torque Sensor Power Supply (Initial Diagnosis) Is DTC 52-02 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.
- 2. Shorted wire check (VS1, PVF lines to power):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connector.
EPS control unit connector B (16P) 3. Turn the vehicle to the ON mode.
4. Measure the voltage between test points 1 and 2 individually.
Test condition Vehicle ON mode EPS control unit connector B (16P): disconnected Test point 1 EPS control unit connector B (16P) No. 12 Test point 2 Body ground Test point 1 EPS control unit connector B (16P) No. 16 Test point 2 Body ground Is there battery voltage?
YES
Repair a short to power in the wire between the EPS control unit and the torque sensor.
NO
The VS1 and PVF wires are OK. Go to step 3.
- 3. EPS control unit check (update):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Reconnect the following connector.
EPS control unit connector B (16P) 3. Update the EPS control unit if it does not have the latest software.
4. Clear the DTC with the HDS.
5. Turn the vehicle to the OFF (LOCK) mode, then start the engine.
6. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame 52-02 Torque Sensor Power Supply (Initial Diagnosis) Is DTC 52-02 indicated?
YES
Go to step 4.
NO
Troubleshooting is complete.
- 4. EPS control unit check (substitution):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Substitute a known-good EPS control unit .
3. Clear the DTC with the HDS.
4. Turn the vehicle to the OFF (LOCK) mode, then start the engine.
5. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame 52-02 Torque Sensor Power Supply (Initial Diagnosis) Is DTC 52-02 indicated?
YES
Replace the steering gearbox .
NO