## DTC Troubleshooting: 17, 18

DTC 17: | Torque Sensor Vcc1

1. | Clear the DTC.

2. | Start the engine.

3. | Wait at least 10 seconds. 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 17 or DTC 18 indicated? YES - Go to 5. NO - Do the troubleshooting for the DTC indicated.n

5. | Make sure the ignition switch is OFF, then disconnect EPS control unit connector B (14P) and the torque sensor 7P connector.

6. | Check for continuity between EPS control unit connector B (14P) terminal No. 1 and body ground. Is there continuity? YES - Repair short to body ground in the wire between the torque sensor and EPS control unit.n NO - Go to 7.

7. | Check for continuity between EPS control unit connector B (14P) terminal No. 1 and the torque sensor 7P connector terminal No. 2 (RHD: No. 6). Is there continuity? YES - Go to 8. NO - Repair open in the wire between the torque sensor and EPS control unit.n

8. | Check for continuity between EPS control unit connector B (14P) terminal No. 2 and body ground. Is there continuity? YES - Repair short to body ground in the wire between the torque sensor and EPS control unit.n NO - Go to 9.

9. | Check for continuity between EPS control unit connector B (14P) terminal No. 2 and the torque sensor 7P connector terminal No. 6 (RHD: No. 2). Is there continuity? YES - Go to 10. NO - Repair open in the wire between the torque sensor and EPS control unit.n

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

11. | Start the engine. Does the EPS indicator come on? YES - Go to 12. NO - Check for loose EPS control unit connectors. If necessary, replace the EPS control unit and recheck.n

12. | Stop the engine, and verify the DTC. Is DTC 17 or DTC 18 indicated? YES - Check for loose torque sensor connectors. If necessary, substitute a known-good steering gearbox and recheck.n NO - Perform the appropriate troubleshooting for the code indicated.n