Diagnosis Procedure
- CHECK INSTALLATION OF HEIGHT SENSOR
Check height sensor is properly installed. Refer to Exploded View .
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace malfunctioning parts and perform sensor initialize. Refer to Description .
- CHECK HEIGHT SENSOR SIGNAL
- Turn ignition switch ON.
- Check voltage between AFS control unit harness connector and ground.
+
-
Voltage
AFS control unit
Connector
Terminal
E70
6
Ground
1.0 - 4.0 V
Is the measurement value within the standard value?
YES
Replace AFS control unit. Refer to Removal and Installation .
NO
Less than the standard value: GO TO 3.
NO
Higher than the standard value: GO TO 8.
- CHECK HEIGHT SENSOR POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect height sensor connector.
- Turn ignition switch ON.
- Check voltage between height sensor harness connector and ground.
+
-
Voltage
Height sensor
Connector
Terminal
B32
2
Ground
4.45 - 6.25 V
Is the inspection result normal?
YES
GO TO 4.
NO
GO TO 6.
- CHECK HEIGHT SENSOR SIGNAL CIRCUIT (OPEN)
- Turn ignition switch OFF.
- Disconnect AFS control unit connector.
- Check continuity between AFS control unit harness connector and height sensor harness connector.
AFS control unit
Height sensor
Continuity
Connector
Terminal
Connector
Terminal
E70
6
B32
1
Existed
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace harness.
- CHECK HEIGHT SENSOR SIGNAL CIRCUIT (SHORT)
Check continuity between AFS control unit harness connector and ground.
AFS control unit
--
Continuity
Connector
Terminal
E70
6
Ground
Not existed
Is the inspection result normal?
YES
Replace height sensor. Refer to Removal and Installation .
NO
Repair or replace harness.
- CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT (OPEN)
- Turn ignition switch OFF.
- Disconnect AFS control unit connector.
- Check continuity between AFS control unit harness connector and height sensor harness connector.
AFS control unit
Height sensor
Continuity
Connector
Terminal
Connector
Terminal
E70
21
B32
2
Existed
Is the inspection result normal?
YES
GO TO 7.
NO
Repair or replace harness.
- CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT (SHORT)
Check continuity between AFS control unit harness connector and ground.
AFS control unit
--
Continuity
Connector
Terminal
E70
21
Ground
Not existed
Is the inspection result normal?
YES
Replace AFS control unit. Refer to Removal and Installation
NO
Repair or replace harness.
- CHECK HEIGHT SENSOR GROUND
Check voltage between AFS control unit harness connector and ground.
+
-
Voltage
(Approx.)
AFS control unit
Connector
Terminal
E70
23
Ground
0 V
Is the inspection result normal?
YES
GO TO 9.
NO
Replace AFS control unit. Refer to Removal and Installation
- CHECK HEIGHT SENSOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect AFS control unit connector and height sensor connector.
- Check continuity between AFS control unit harness connector and height sensor harness connector.
AFS control unit
Height sensor
Continuity
Connector
Terminal
Connector
Terminal
E70
23
B32
4
Existed
Is the inspection result normal?
YES
Replace height sensor. Refer to Removal and Installation .
NO
Repair or replace harness.