Component Inspection
1.

IG "OFF".

2.

IG "ON".

3.

Connect GDS and select "Diagnostic Trouble Codes(DTCs)" mode.

4.

Using a GDS, Clear DTC.

5.

Select "Diagnostic Trouble Codes(DTCs)" mode again.

6.

Are any DTCs present ?

▶ Substitute with a known-good EPS ECU and check for proper operation.

If the problem is corrected, replace EPS ECU and then go to "Verification of Vehicle Repair" procedure.

※ In a case of replacing the EPS ECU, operate "Steering Angle Sensor Calibration" by GDS in EPS system.

▶ Fault is intermittent caused by poor connection in CAN signal harness and/or HECU's connector. Go to "Verification of Vehicle Repair" procedure.

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