Diagnostic Test
- CHECK INSTALLATION OF HEIGHT SENSOR
Check height sensor is properly installed. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .
Is the inspection result normal?
YES
GO TO STEP 2.
NO
Repair or replace malfunctioning parts and perform sensor initialize. Refer to DESCRIPTION .
- CHECK HEIGHT SENSOR SIGNAL INPUT
- Turn ignition switch ON.
- Check voltage between AFS control unit harness connector and ground.
+ - Voltage AFS control unit Connector Terminal M4 6 Ground 1.2 - 4.0 V Is the measurement value within the standard value?
YES
Replace AFS control unit. Refer to REMOVAL AND INSTALLATION
NO - 1
Less than the standard value: GO TO STEP 3.
NO - 2
Higher than the standard value: GO TO STEP 8.
- CHECK HEIGHT SENSOR POWER SUPPLY INPUT VOLTAGE
- 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 C4 2 Ground 4.45 - 6.25 V
Is the inspection result normal?
YES
GO TO STEP 4.
NO
GO TO STEP 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 M4 6 C4 1 Existed
Is the inspection result normal?
YES
GO TO STEP 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 M4 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 M4 21 C4 2 Existed
Is the inspection result normal?
YES
GO TO STEP 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 M4 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 VOLTAGE OUTPUT
Check voltage between AFS control unit harness connector and ground.
+ - Voltage
(Approx.)AFS control unit Connector Terminal M4 23 Ground 0 V Is the inspection result normal?
YES
GO TO STEP 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 M4 23 C4 4 Existed
Is the inspection result normal?
YES
Replace height sensor. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness.