Inspection 5 Steering Angle Signal Malfunction

TROUBLE DIAGNOSIS


Inspection 5 Steering Angle Signal Malfunction

1.CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect RAS control unit harness connector and steering angle sensor harness connector, and check terminal for deformation, disconnection, looseness, etc.
2. Reconnect harness connector securely, and perform self-diagnosis.





Is above displayed on self-diagnosis display?
YES - GO TO 2.
NO - Connector terminal connection is loose, damaged, open, or shorted. Repair or replace the terminal.
2.ADJUST NEUTRAL POSITION OF STEERING ANGLE SENSOR
Adjust the steering angle sensor neutral position, and then perform self-diagnosis again. .
Is the result of self-diagnosis normal?
OK - Inappropriate neutral position adjustment of steering angle sensor.
NG - GO TO 3.
3.CHECK STEERING ANGLE SENSOR POWER SUPPLY AND GROUND CIRCUIT
1. Turn ignition switch OFF, and disconnect steering angle sensor harness connector M47.





2. Check continuity steering angle sensor harness connector M47 and ground.










3. Turn ignition switch ON, and then check voltage steering angle sensor harness connector M47 and ground.





OK or NG
OK - GO TO 4.
NG - Steering angle sensor power supply and ground circuit open or shorted. Repair or replace the applicable malfunctioning circuit.
4.DATA MONITOR
1. Connect steering angle sensor harness connector.
2. Select "DATA MONITOR" on "STEERING ANG" mode, and then check the steering angle.





OK or NG
OK - RAS control unit malfunction. Replace RAS control unit.
NG - Replace steering angle sensor and adjust neutral position of steering angle sensor. .