B2514

B2514 HEIGHT SENSOR UNUSUAL [RR]





DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
- GO TO 2.
2.DTC CONFIRMATION
1. Start the engine.
2. Turn the headlamp ON.
3. Select the self-diagnosis with CONSULT-III.
4. Check the self-diagnosis result. Testing and Inspection.
Is DTC "B2514" detected?
YES - SEE Diagnosis Procedure.
NO - Intermittent Incident.




Diagnosis Procedure
1.CHECK HEIGHT SENSOR SIGNAL INPUT
1. Turn ignition switch ON.
2. Check voltage between AFS control unit harness connector and ground.





Is the measurement value within the standard value?
YES - Replace AFS control unit. Removal And Installation Xenon Type
Less than the standard value -GO TO 2.
Higher than the standard value-GO TO 5.
2.CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT INPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect rear height sensor connector.
3. Turn ignition switch ON.
4. Check voltage between rear height sensor harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 4.
3.CHECK HEIGHT SENSOR SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harness connector and rear height sensor harness connector.





4. Check continuity between AFS control unit harness connector and ground.





Is the inspection result normal?
YES - Replace rear height sensor. Removal And Installation Xenon Type.
NO - Repair or replace harness.
4.CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between AFS control unit harness connector and rear height sensor harness connector.





4. Check continuity between AFS control unit harness connector and ground.





Is the inspection result normal?
YES - Replace AFS control unit. Removal And Installation Xenon Type
NO - Repair or replace harness.
5.CHECK HEIGHT SENSOR GROUND CIRCUIT VOLTAGE OUTPUT
Check voltage between AFS control unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 6.
NO - Replace AFS control unit. Removal And Installation Xenon Type
6.CHECK HEIGHT SENSOR GROUND OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and rear height sensor connector.
3. Check continuity between AFS control unit harness connector and rear height sensor harness connector.





Is the inspection result normal?
YES - Replace rear height sensor. Removal And Installation Xenon Type.
NO - Repair or replace harness.