B2503

B2503, B2504 SWIVEL ACTUATOR

DTC Logic


DTC DETECTION LOGIC

- [B2503] Swivel actuator [RH]
- [B2504] Swivel actuator [LH]






DTC CONFIRMATION PROCEDURE


1. DTC ERASE

Erase the DTC memory of AFS with CONSULT.
- GO TO 2.

2. CONFIRMATION DTC SELECTION

Select "B2503" or "B2504" for confirmation.
Which DTC is confirmation?
B2503- GO TO 3.
B2504- GO TO 4.

3. DTC CONFIRMATION (B2503)

1.Steer to the straight-forward position.
2.Start the engine.
3.Turn AFS switch ON.
4.Turn the headlamp ON.
5.Shift the selector lever to "N".
6.Steer to the right. (Rotate it once or more.)
7.Perform the self-diagnosis with CONSULT.
Is DTC "B2503" detected?
YES- .
NO- Intermittent Incident.

4. DTC CONFIRMATION (B2504)

1.Steer to the straight-forward position.
2.Start the engine.
3.Turn AFS switch ON.
4.Turn the headlamp ON.
5.Drive at 25 km/h (15.5 MPH) or more.
6.Steer to the left. (Rotate it once or more.)
7.Stop the vehicle.
8.Perform the self-diagnosis with CONSULT.
Is DTC "B2504" detected?
YES- .
NO- Intermittent Incident.


Diagnosis Procedure


1. CHECK SWIVEL POSITION 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- GO TO 2.
Less than the standard value -GO TO 6.
Higher than the standard value-GO TO 9.

2. CHECK SWIVEL MOTOR

Check the swivel motor..
Is the inspection result normal?
YES- GO TO 3.
NO- Replace the front combination lamp.

3. CHECK SWIVEL MOTOR OPEN CIRCUIT

1.Turn the ignition switch OFF.
2.Disconnect AFS control unit connector and the headlamp swivel actuator connector.
3.Check continuity between the AFS control unit harness connector and the headlamp swivel actuator harness connector.





Does continuity exist?
YES- GO TO 4.
NO- Repair the harnesses or connectors.

4. CHECK SWIVEL MOTOR SHORT CIRCUIT

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





Does continuity exist?
YES- Repair the harnesses or connectors.
NO- GO TO 5.

5. CHECK SWIVEL MOTOR CIRCUIT VOLTAGE OUTPUT

1.Connect AFS control unit connector.
2.Start the engine.
3.Turn the headlamp ON.
4.Select "LOW BEAM TEST RIGHT" or "LOW BEAM TEST LEFT" of ADAPTIVE LIGHT active test item.
5.With operating the test item, check the voltage between the AFS control unit harness connector and the ground.





Is the measurement value within the standard value?
YES- Replace the front combination lamp.
NO- Replace AFS control unit. Removal And Installation

6. CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT INPUT VOLTAGE

1.Turn the ignition switch OFF.
2.Disconnect the headlamp swivel actuator connector.
3.Turn the ignition switch ON.
4.Check the voltage between the headlamp swivel actuator harness connector and the ground.





Is the measurement value normal?
YES- GO TO 7.
NO- GO TO 8.

7. CHECK SWIVEL POSITION 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 headlamp swivel actuator harness connector.





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





Does continuity exist?
YES- Replace the front combination lamp.
NO- Repair the harnesses or connectors.

8. CHECK SWIVEL POSITION 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 headlamp swivel actuator harness connector.





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





Is the measurement value normal?
YES- Replace AFS control unit. Removal And Installation
NO- Repair the harnesses or connectors.

9. CHECK SWIVEL POSITION SENSOR GROUND CIRCUIT VOLTAGE OUTPUT

Check the voltage between the AFS control unit harness connector and the ground.





Is the measurement value normal?
YES- GO TO 10.
NO- Replace AFS control unit. Removal And Installation

10. CHECK SWIVEL POSITION SENSOR GROUND OPEN CIRCUIT

1.Turn the ignition switch OFF.
2.Disconnect AFS control unit connector and the headlamp swivel actuator connector.
3.Check continuity between the AFS control unit harness connector and the headlamp swivel actuator harness connector.





Does continuity exist?
YES- Replace the front combination lamp.
NO- Repair the harnesses or connectors.


Component Inspection


1. CHECK SWIVEL MOTOR SINGLE PART

1.Disconnect the swivel actuator connector.
2.Check the resistance among each swivel actuator connector terminal.





Is the measurement value normal?
YES- Swivel actuator is normal.
NO- Replace the front combination lamp.