Diagnostic Test
- CHECK CONTROL MODULE GROUND CIRCUIT
- Turn the ignition switch OFF.
- Disconnect steering angle main control module harness connector.
- Check the continuity between control module harness connector and ground.
Steering angle main control module - Continuity Connector Terminal E27 33 Ground Existed E28 39
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair open circuit or short to ground or short to power in harness or connectors.
- CHECK CONTROL MODULE POWER SUPPLY CIRCUIT (1)
- Turn the ignition switch ON.
- Check the voltage between control module harness connector and ground.
Steering angle main control module - Continuity Connector Terminal E27 34 Ground 10.5 - 16.0 V
Is the inspection result normal?
YES
GO TO STEP 4 .
NO
GO TO STEP 3 .
- CHECK CONTROL MODULE POWER SUPPLY CIRCUIT (2)
- Turn the ignition switch OFF.
- Check the 100A fusible link (#J).
- Check the harness for open or short between steering angle main control module harness connector No. 34 terminal and the 100A fusible link (#J).
Is the inspection result normal?
YES
Perform the trouble diagnosis for battery power supply circuit. Refer to WIRING DIAGRAM - BATTERY POWER SUPPLY - .
NO
Repair or replace error - detected parts.
- CHECK INTERMITTENT INCIDENT
- Turn the ignition switch OFF.
- Check enlarged contact spring of terminal. Refer to HOW TO CHECK TERMINAL .
- Perform intermittent incident while turning steering wheel. Refer to INTERMITTENT INCIDENT .
Is the inspection result normal?
YES
Replace steering angle main control module. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace error - detected part.