B2503

B2503, B2504 SWIVEL ACTUATOR

DTC Logic


DTC DETECTION LOGIC






*: Initialization is not included.

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 the headlamp ON.
4.Shift the selector lever to "N".
5.Steer to the right. (Rotate it once or more.)
6.Perform the self-diagnosis with CONSULT.
Is DTC "B2503" detected?
YES- Refer to "Diagnosis Procedure" .
NO- Refer to "Intermittent Incident" Intermittent Incident.

4. DTC CONFIRMATION (B2504)

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


Diagnosis Procedure


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

2. CHECK SWIVEL MOTOR

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

3. CHECK SWIVEL MOTOR OPEN CIRCUIT

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





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harnesses.

4. CHECK SWIVEL MOTOR SHORT CIRCUIT

Check continuity between AFS control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harnesses.

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 voltage between AFS control unit harness connector and ground.





Is the inspection result normal?
YES- Replace front combination lamp.
NO- Replace AFS control unit. Refer to "Removal and Installation" Removal and Installation

6. CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT INPUT VOLTAGE

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





Is the inspection result normal?
YES- GO TO 7.
NO- GO TO 8.

7. CHECK SWIVEL POSITION SENSOR SIGNAL CIRCUIT

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





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





Is the inspection result normal?
YES- Replace front combination lamp.
NO- Repair or replace harnesses.

8. CHECK SWIVEL POSITION 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 headlamp swivel actuator harness connector.





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





Is the inspection result normal?
YES- Replace AFS control unit. Refer to "Removal and Installation" Removal and Installation
NO- Repair or replace harnesses.

9. CHECK SWIVEL POSITION SENSOR GROUND CIRCUIT VOLTAGE OUTPUT

Check voltage between AFS control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 10.
NO- Replace AFS control unit. Refer to "Removal and Installation" Removal and Installation

10. CHECK SWIVEL POSITION SENSOR GROUND OPEN CIRCUIT

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





Is the inspection result normal?
YES- Replace front combination lamp.
NO- Repair or replace harnesses.


Component Inspection


1. CHECK SWIVEL MOTOR SINGLE PART

1.Disconnect swivel actuator connector.
2.Check resistance among each swivel actuator connector terminals.





Is the inspection result normal?
YES- Swivel actuator is normal.
NO- Replace front combination lamp.