B2514

B2514 HEIGHT SENSOR UNUSUAL [RR]





DTC Logic

DTC DETECTION LOGIC
[B2514] Height sensor unusual [RR]






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 the ignition switch ON.
2. Check the voltage between the AFS control unit harness connector and the 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 the ignition switch OFF.
2. Disconnect the height sensor connector.
3. Turn the ignition switch ON.
4. Check the voltage between the height sensor harness connector and the ground.





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





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





Does continuity exist?
YES - Replace the height sensor.
NO - Repair the harnesses or connectors.
4.CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect AFS control unit connector.
3. Check continuity between the AFS control unit harness connector and the height sensor harness connector.





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





Does continuity exist?
YES - Replace AFS control unit. Removal And Installation Xenon Type
NO - Repair the harnesses or connectors.
5.CHECK HEIGHT SENSOR GROUND CIRCUIT VOLTAGE OUTPUT
Check the voltage between the AFS control unit harness connector and the ground.





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





Does continuity exist?
YES - Replace the height sensor.
NO - Repair the harnesses or connectors.