DTC C1131[A1] Motor Rotor Position Failure

1. Electric power steering control system check

Refer to "56.Steering Control 6A.Troubleshooting diagnostic system check-electric power steering controls".

2. Current DTC check

1) Connect the scan tool.

2) Start the engine.

3) Observe the DTC information with a scan tool. Is a DTC set?

Yes

=>Go to EPS motor control unit replacement.

No

Go to Intermittent conditions of electric power steering control system.

Refer to "207.Steering 20D.Symptom intermittent conditions of electric power steering control system".

3. EPS motor control unit replacement

Refer to "6.Steering 6B.Power Assisted System power steering unit removal".

Refer to "6.Steering 6B.Power Assisted System power steering unit disassembly".

Refer to "6.Steering 6B.Power Assisted System power steering unit reassembly".

Refer to "6.Steering 6B.Power Assisted System power steering unit installation".

Refer to "6.Steering 6B.Power Assisted System power steering unit setting".

Procedure completion

=>Go to Repair verification.

4. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch for 30 seconds or more.

3) Start the engine.

4) Observe the DTC information with a scan tool.