B2503

ACTIVE AFS

DTC B2503 SWIVEL ACTUATOR RH

1.CHECK SWIVEL POSITION SENSOR SIGNAL
1. Turn ignition switch ON.

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

OK or NG
OK - GO TO 2.
NG -
- If voltage is less than approx. 0.25V, GO TO 3.
- If voltage is more than approx. 4.75V, GO TO 6.
2.CHECK SWIVEL POSITION SENSOR POWER SUPPLY

Check voltage between AFS control unit harness connector and ground.

OK or NG
OK - GO TO 12.
NG - Replace AFS control unit. Service and Repair.
3.CHECK SWIVEL POSITION SENSOR POWER SUPPLY

Check voltage between AFS control unit harness connector and ground.

OK or NG
OK - GO TO 4.
NG - GO TO 8.
4.CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH connector.
3. Turn ignition switch ON.

4. Check voltage between front combination lamp RH harness connector and ground.

OK or NG
OK - GO TO 5.
NG - Repair harness or connector.
5.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
(A) and front combination lamp RH harness connector (B).

Check voltage between AFS control unit harness connector and ground.

OK or NG
OK - GO TO 7.
NG - Check connector for connection, bend and loose fit. If it is normal, replace AFS control unit. Service and Repair.
7.CHECK SWIVEL POSITION SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and front combination lamp RH connector.

3. Check continuity between AFS control unit harness connector
(A) and front combination lamp RH harness connector (B).

OK or NG
OK - Replace front combination lamp RH (swivel position sensor malfunction). AFS Off Indicator Does Not Operate Active AFS Active AFS Service and Repair, "Removal and
Installation of Front Combination Lamp".
NG - Repair harness or connector.
8.CHECK DIAGNOSIS RESULT
Select "ADAPTIVE LIGHT" on CONSULT-III. Select "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
Is DTC B2521 ECU CIRC detected?
YES - B2521.
NO - GO TO 9.
9.CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH connector.
3. Turn ignition switch ON.

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

OK or NG
OK - GO TO 10.
NG - GO TO 11.
10.CHECK SWIVEL POSITION SENSOR SIGNAL CIRCUIT (SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.

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

OK or NG
OK - Replace front combination lamp RH (swivel position sensor malfunction). Active AFS.
NG - Repair harness or connector.
11.CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT (SHORT CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector.

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

OK or NG
OK - Replace AFS control unit. Service and Repair.
NG - Repair harness or connector.
12.CHECK SWIVEL MOTOR
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH connector.

3. Check continuity between front combination lamp RH connector terminals.

4. Check continuity between front combination lamp RH connector terminals.

5. Check continuity between front combination lamp RH connector terminals (insulation resistance).

OK or NG
OK - GO TO 13.
NG - Replace front combination lamp RH (swivel motor malfunction). Active AFS.
13.CHECK SWIVEL MOTOR CIRCUIT 1
1. Connect front combination lamp RH connector.
2. Turn ignition switch ON.

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

OK or NG
OK - GO TO 14.
NG - GO TO 16.
14.CHECK DIAGNOSIS RESULT 1
Select "ADAPTIVE LIGHT" on CONSULT-III. Select "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
Is DTC of present malfunction detected?
YES - � If detect DTC B2503 and B2504, B2504.
- If detect DTC B2503 only, replace AFS control unit. Service and Repair.
- If detect any DTC except B2503 and B2504, CONSULT-III Function (Adaptive Light).
NO - GO TO 15.
15.CHECK DIAGNOSIS RESULT 2
Select "ADAPTIVE LIGHT" on CONSULT-III, check "SELF-DIAG RESULTS" with steering turning 180� or more to right under swivel operative condition to keep more than 2 seconds.
Is DTC B2503 of present malfunction detected?
YES - Replace front combination lamp RH (swivel actuator malfunction). Active AFS.
NO - The swivel actuator system RH is normal at present.
16.CHECK SWIVEL MOTOR CIRCUIT 2
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and front combination lamp RH connector.

3. Check continuity between AFS control unit harness connector
(A) and front combination lamp RH harness connector (B).

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

OK or NG
OK - Replace AFS control unit. Service and Repair.
NG - Repair or replace harness or connector.