Height Sensor System Inspection

Height Sensor System Inspection

INSPECTION PROCEDURE
1. SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.

C1801/C1806/C1807:

Is the above displayed in the self-diagnosis display items?
YES >> GO TO 3.
NG >> GO TO 2.

2. DATA MONITOR CHECK
Conduct data monitor of "HEIGT SEN" to check if the status is normal.





OK or NG
OK >> Inspection End.
NG >> GO TO 3.

3. CONNECTOR INSPECTION
1. Disconnect suspension control unit connector B3 and height sensor C8.
2. Check the terminals for deformation, disconnection, looseness or damage..
OK or NG
OK >> GO TO 4.
NG >> Repair or replace as necessary.

4. CHECK HEIGHT SENSOR POWER
1. Reconnect the suspension control unit connector.
2. Turn the ignition switch ON.





3. Check voltage between height sensor connector C8 terminal 1 and ground.
Voltage: Approximately 5V.
OK or NG
OK >> GO TO 5.
NG >> Check harness or connector for open or short. If OK, replace suspension control unit.

5. CHECK HEIGHT SENSOR GROUND
1. Turn ignition switch OFF.





2. Check continuity between height sensor connector C8 terminal 3 and ground.
3 - Ground Continuity should exist.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.

6. CHECK HEIGHT SENSOR SIGNAL CIRCUIT
1. Disconnect suspension control unit connector.





2. Check continuity between height sensor connector C8 terminal 2 and suspension control unit connector B3 terminal 3.
2 - 3 Continuity should exist.





3. Check continuity between height sensor connector C8 terminal 2 and ground.
2 - Ground Continuity should not exist.
OK or NG
OK >> Replace the height sensor.
NG >> Repair harness or connector.