| DTC 71-01: | Motor-Angle Sensor (SIN/COS Signals) (Diagnosis when steering wheel turning) |
| DTC 71-03: | Motor-Angle Sensor (SIN/COS Signals) (Diagnosis when steering wheel turning) |
| DTC 71-06: | Motor-Angle Sensor (SIN/COS Signals Initial) (Diagnosis when steering wheel turning) |
| 1. | Clear the DTC using the HDS. |
| 2. | Turn the ignition switch OFF. |
| 3. | Start the engine. |
| 4. | Turn the steering wheel to right or left, and wait 10 seconds or more. Does the EPS indicator come on? YES - Go to 5. NO - Check for loose terminals or poor connections. If the connections are good, the system is OK at this time.n |
| 5. | Verify the DTC. Is DTC 71-01, 71-02, 71-03, 71-05 or 71-06 indicated? YES - Go to 6. NO - Perform the appropriate troubleshooting for the code indicated.n |
| 6. | Turn the ignition switch OFF. |
| 7. | Disconnect the EPS control unit connector D (28P). |
| 8. | Check for resistance between the following terminals of the EPS control unit connector D (28P).
Is the resistance between R1-R2 13-25 W, S1-S3 26-49 W, and S2-S4 26-49 W? YES - Go to 9. NO - Go to 12. |
| 9. | Check for continuity between body ground and the EPS control unit connector D (28P) No. 12 terminal, No. 13 terminal, No. 14 terminal, No. 26 terminal, No. 27 terminal, No. 28 terminal individually.
Is there continuity? YES - Go to 10. NO - Check for loose terminals in the EPS control unit connectors, and repair if necessary. If no poor connections are found, replace the EPS control unit.n |
| 10. | Disconnect the motor-angle sensor 6P connector. |
| 11. | Check for continuity between body ground and motor-angle sensor 6P connector No. 1 terminal, No. 2 terminal, No. 3 terminal, No. 4 terminal, No. 5 terminal, No. 6 terminal individually.
Is there continuity? YES - Faulty motor-angle sensor (internal failure), or short to body ground in the wire (sensor side), replace the motor: LHD type, RHD type.n NO - Repair short to body ground in the wire harness between the motor-angle sensor 6P connector and EPS control unit.n |
| 12. | Disconnect the motor-angle sensor 6P connector. |
| 13. | Check for resistance between the following terminals of the motor-angle sensor 6P connector.
Is the resistance between R1-R2 13-25 W, S1-S3 26-49 W, and S2-S4 26-49 W? YES - Open, or short to body ground in the wire harness between the motor-angle sensor 6P connector and EPS control unit.n NO - Faulty motor-angle sensor (internal failure), or short to body ground in the wire (sensor side), replace the motor: LHD type, RHD type.n |