IG "OFF".
IG "ON".
Connect GDS and select "Diagnostic Trouble Codes(DTCs)" mode.
Using a GDS, Clear DTC.
Select "Diagnostic Trouble Codes(DTCs)" mode again.
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. |