Adaptive Front Lighting System Acura RL II

Scheme 1

Scheme 2

System Description

The adaptive front lighting control system consists of the adaptive front lighting control unit, suspension stroke sensor, steering angle sensor, headlight leveling motors, adaptive front lighting gearbox, AFS indicator in the gauge control module, and AFS OFF switch. The function of the system is to adjust the headlights for best aiming of the headlight beams. The suspension stroke motors move the headlight aiming up and down, and the adaptive front lighting gearbox moves the headlight aiming left and right. The suspension stroke sensor sends signals regarding vertical movement via the control unit to the headlight leveling motors, and the steering angle sensor and vehicle speed pulse send signals regarding horizontal movement via the control unit to the adaptive front lighting gearboxes. Also the control unit has a self-diagnostic function and fail-safe function.

Swivel Control

The headlight swivel angle is controlled by the signals from the steering angle sensor. The swivel control starts when the conditions shown are satisfied.

1. Headlight switch is ON.
2. AFS OFF switch is not pressed.
3. Vehicle speed is over 5 mph (8 km/h).

Initialize function

When the headlight switch is ON, the swivel angle is initialized every time in spite of the ignition switch ON (II) or OFF. The right headlight aiming moves right 22.2 degree and the left headlight aiming moves right 0.8 degree, then returns the headlight aiming to center and complete the initialization.

Scheme 3

Leveling Control

The headlight leveling is controlled by the signals from the suspension stroke sensor. The leveling control starts when both the ignition switch and headlight switch are ON.

Fail-safe Function

If a malfunction occurs to any of the sensors, B-CAN line or control unit, the adaptive front lighting control system moves to fail-safe mode. In this case, the system stops control and the AFS indicator in the gauge control module blinks to show the malfunction. If the swivel control has a malfunction, the headlight aiming stays centered. If the leveling control has a malfunction, the headlight aiming stays at 0.6 degree under the present position.

Scheme 4

Scheme 5

Self-diagnostic Function

The self-diagnostic function of the adaptive front lighting control system detects system problems. This information can be retrieved by displaying DTCs with the AFS indicator.

Displaying the DTC (use only if the HDS is unavailable)

1. Turn the ignition switch OFF.
2. Short the SCS line to body ground.
3. Turn the ignition switch ON (II). (In this point, the AFS indicator comes on for 2 seconds.)
4. Within 3 seconds after the indicator turns off, push the AFS OFF switch three times.
5. Within 6 seconds after the indicator turns off, the indicator starts to indicate the DTCs. If there is a DTC, the indicator starts to blink. If there are no DTCs, the indicator comes on and stays on.

Erasing the DTC

1. Turn the ignition switch OFF.
2. Short the SCS line to body ground.
3. Turn the ignition switch ON (II). (at this point, the AFS indicator comes on for 2 seconds and initializing for 1.5 seconds.)
4. Within 3 seconds after the indicator turns off, push and hold the AFS switch.
5. Within 3 seconds after the indicator comes on, release the switch.
6. Within 3 seconds after the indicator turns off, push the switch one time.
7. Make sure the indicator blinks 2 times. If the indicator does not blink, repeat from step 1

DTC B2105: Adaptive Front Lighting Control Unit Lost Communication with Gauge Control Module (STEERING Message)

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for DTCs with the HDS. Is DTC B2105 indicated? YES - Go to step 5. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the gauge control module connector and at the adaptive front lighting control unit connector.
5. Check for DTCs with the HDS. Are DTCs B2106, B2107, and B2108 also indicated? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Do the gauge control module input test (see «GAUGE CONTROL MODULE INPUT TEST»(/acura/rl/ii-2004-2008/remont/communication-devices/#multiplex-integrated-control-system__gauge-control-module-input-test) ).

DTC B2106: Adaptive Front Lighting Control Unit Lost Communication with Gauge Control Module (A/T Message)

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for DTCs with the HDS. Is DTC B2106 indicated? YES - Go to step 5. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the gauge control module connector and at the adaptive front lighting control unit connector.
5. Check for DTCs with the HDS. Are DTCs B1008, B1061, and B1808 also indicated? YES - Do the gauge control module input test (see «GAUGE CONTROL MODULE INPUT TEST»(/acura/rl/ii-2004-2008/remont/communication-devices/#multiplex-integrated-control-system__gauge-control-module-input-test) ). NO - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

DTC B2107: Adaptive Front Lighting Control Unit Lost Communication with MICU (MICU Message)

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for DTCs with the HDS. Is DTC B2107 indicated? YES - Go to step 5. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the MICU connector and at the adaptive front lighting control unit connector.
5. Check for DTCs with the HDS. Are DTCs B1055, B1157, B1255, B1605, B1806, and B2155 also indicated ? YES - Do the MICU input test (see «MICU INPUT TEST»(/acura/rl/ii-2004-2008/remont/communication-devices/#multiplex-integrated-control-system__micu-input-test) ). NO - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

DTC B2108: Adaptive Front Lighting Control Unit Lost Communication with Combination Switch Control Unit (HLSW Message)

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for DTCs with the HDS. Is DTC B2108 indicated? YES - Go to step 5. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the combination switch control unit connector and at the adaptive front lighting control unit connector.
5. Check for DTCs with the HDS. Are DTCs B1007, B1062, and B1155 also indicated? YES - Do the combination switch control unit input test (see «WIPER/WASHER SWITCH (COMBINATION SWITCH CONTROL UNIT) INPUT TEST»(/acura/rl/ii-2004-2008/remont/wiperwasher-systems/#wiper-system-washer-system) ). NO - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

DTC B2125: Steering Angle Sensor Signal Error

Note. Before troubleshooting, check the VSA system DTCs. If the VSA system is OK, do this troubleshooting.

Scheme 6

Scheme 7

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Turn the steering wheel straight ahead, and keep it in that position.
5. Check for DTCs with the HDS. Is DTC B2125 indicated? YES - Go to step 6. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.
6. Check the steering angle sensor (see «DTC 27: STEERING ANGLE SENSOR»(/acura/rl/ii-2004-2008/remont/anti-locktraction-control/#vsa-vehicle-stability-assist-system__dtc-27-steering-angle-sensor) ). Is the steering angle sensor OK? YES - Go to step 7. NO - Faulty steering angle sensor, replace it.
7. Turn the ignition switch OFF.
8. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), then remove the steering column covers (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ).
9. Disconnect the steering angle sensor 5P connector.
10. Disconnect the adaptive front lighting control unit 40P connector.
11. Check for continuity between body ground and the steering angle sensor 5P connector terminals No. 2, No. 3, and No. 4 individually. Is the continuity? YES - Repair a short in the wire. NO - Go to step 12.
12. Check for continuity between steering angle sensor 5P connector terminals No. 2 and No. 4 and adaptive front lighting control unit 40P connector terminals No. 18 and No. 38 respectively. Is there continuity? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Repair an open in the wire.

DTC B2126: Steering Angle Sensor Z Pulse Line or Supply Line Open

Note. Before troubleshooting, check the VSA system DTCs. If the VSA system is OK, do this troubleshooting.

Scheme 8

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Turn the steering wheel 10 degrees or more to the left or right, and keep it in that position.
5. Check for DTCs with the HDS. Is DTC B2126 indicated? YES - Go to step 6. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.
6. Check the steering angle sensor (see «DTC 27: STEERING ANGLE SENSOR»(/acura/rl/ii-2004-2008/remont/anti-locktraction-control/#vsa-vehicle-stability-assist-system__dtc-27-steering-angle-sensor) ). Is the steering angle sensor OK? YES - Go to step 7. NO - Faulty steering angle sensor, replace it.
7. Turn the ignition switch OFF.
8. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), then remove the steering column covers (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ).
9. Disconnect the steering angle sensor 5P connector.
10. Disconnect the adaptive front lighting control unit 40P connector.
11. Check for continuity between steering angle sensor 5P connector terminal No. 3 and adaptive front lighting control unit 40P connector terminal No. 17. Is the continuity? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Repair an open in the wire.

DTC B2127: Steering Angle Sensor Malfunction

Note. Before troubleshooting, check the VSA system DTCs. If the VSA system is OK, do this troubleshooting.

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Check for DTCs with the HDS. Is DTC B2127 indicated? YES - Go to step 4. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.
4. Turn the ignition switch OFF.
5. Substitute a known-good adaptive front lighting control unit, and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).
6. Turn the ignition switch ON (II).
7. Check for DTCs with the HDS. Is DTC B2127 indicated? YES - Do the gauge control module input test (see «GAUGE CONTROL MODULE INPUT TEST»(/acura/rl/ii-2004-2008/remont/communication-devices/#multiplex-integrated-control-system__gauge-control-module-input-test) ). NO - Faulty original adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

DTC B2128: Steering Angle Sensor Signal Error

Note. Before troubleshooting, check the VSA system DTCs. If the VSA system is OK, do this troubleshooting.

Scheme 9

Scheme 10

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Turn the steering wheel 90 degrees or more from the center position to the left or right, and repeat this five times.
5. Check for DTCs with the HDS. Is DTC B2128 indicated? YES - Go to step 6. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.
6. Check the steering angle sensor (see «DTC 27: STEERING ANGLE SENSOR»(/acura/rl/ii-2004-2008/remont/anti-locktraction-control/#vsa-vehicle-stability-assist-system__dtc-27-steering-angle-sensor) ). Is the steering angle sensor OK? YES - Go to step 7. NO - Faulty steering angle sensor, replace it.
7. Turn the ignition switch OFF.
8. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), then remove the steering column covers (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ).
9. Disconnect the steering angle sensor 5P connector.
10. Disconnect the adaptive front lighting control unit 40P connector.
11. Disconnect the VSA modulator-control unit 47P connector.
12. Check for continuity between body ground and adaptive front lighting control unit 40P connector terminals No. 17, No. 18, and No. 38 individually. Is there continuity? YES - Repair a short to ground in the wire. NO - Go to step 13.
13. Check for continuity between steering angle sensor 5P connector terminals No. 2, No. 3, and No. 4 and adaptive front lighting control unit 40P connector terminals No. 17, No. 18, and No. 38 respectively. Is there continuity? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Repair an open in the wire.

DTC B2129: Steering Angle Sensor Circuit Malfunction

Note. Before troubleshooting, check the VSA system DTCs. If the VSA system is OK, do this troubleshooting.

Scheme 11

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Turn the steering wheel from the center position to the left or right position fully.
5. Check for DTCs with the HDS. Is DTC B2129 indicated? YES - Go to step 6. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.
6. Check the steering angle sensor (see «DTC 27: STEERING ANGLE SENSOR»(/acura/rl/ii-2004-2008/remont/anti-locktraction-control/#vsa-vehicle-stability-assist-system__dtc-27-steering-angle-sensor) ). Is the steering angle sensor OK? YES - Go to step 7. NO - Faulty steering angle sensor, replace it.
7. Turn the ignition switch OFF.
8. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), then remove the steering column covers (see «STEERING COLUMN REMOVAL AND INSTALLATION»(/acura/rl/ii-2004-2008/remont/manual-power-steering/#power-steering-system-electronic-power-steering-system__steering-column-removal-and-installation) ).
9. Disconnect the steering angle sensor 5P connector.
10. Disconnect the adaptive front lighting control unit 40P connector.
11. Disconnect the VSA modulator-control unit 47P connector.
12. Check for continuity between steering angle sensor 5P connector terminal No. 3 and adaptive front lighting control unit 40P connector terminal No. 17. Is there continuity? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Repair an open in the wire.

DTC B2130: A Short in the Steering Angle Sensor Z Pulse Line

Note. Before troubleshooting, check the VSA system DTCs. If the VSA system is OK, do this troubleshooting.

Scheme 12

Scheme 13

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Turn the steering wheel 90 degrees or more from the center position to the left or right, and repeat this five times.
5. Check for DTCs with the HDS. Is DTC B2130 indicated? YES - Go to step 6. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.
6. Check the steering angle sensor (see «DTC 27: STEERING ANGLE SENSOR»(/acura/rl/ii-2004-2008/remont/anti-locktraction-control/#vsa-vehicle-stability-assist-system__dtc-27-steering-angle-sensor) ). Is the steering angle sensor OK? YES - Go to step 7. NO - Faulty steering angle sensor, replace it.
7. Turn the ignition switch OFF.
8. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), then remove the steering column covers (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ).
9. Disconnect the steering angle sensor 5P connector.
10. Disconnect the adaptive front lighting control unit 40P connector.
11. Disconnect the VSA modulator-control unit 47P connector.
12. Check for continuity between adaptive front lighting control unit 40P connector terminals No. 17 and No. 18 and between terminals No. 17 and No. 38. Is there continuity? YES - Repair a short in the wires. NO - Go to step 13.
13. Check for continuity between the adaptive front lighting control unit 40P connector terminal No. 17 and body ground. Is there continuity? YES - Repair a short to ground in the wire. NO - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

DTC B2131: Steering Angle Sensor (MAX) Error

Note. Before troubleshooting, check the VSA system DTCs. If the VSA system is OK, do this troubleshooting.

Scheme 14

Scheme 15

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Turn the steering wheel 90 degrees or more from the center position to the left or right position.
5. Select the BODY ELECTRICAL menu from the HDS.
6. While maintaining communication with the HDS, test-drive in a straight line for 98.4 feet (30 m) at 16 mph (25 km/h) or more.
7. Check the AFS indicator in the gauge control module. Does the AFS indicator come on? YES - Go to step 10 . NO - Go to step 8.
8. Select the AFS from the HDS, and enter the DATA LIST.
9. Check the STEERING ANGLE LEARN information in the DATA LIST. Is the steering angle learn finished? YES - Go to step 10. NO - Go to step 6 , and repeat the procedure.
10. Turn the steering wheel from the center position to the full left or right position.
11. Check for DTCs with the HDS. Is DTC B2131 indicated ? YES - Go to step 12. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.
12. Check the steering angle sensor (see «DTC 27: STEERING ANGLE SENSOR»(/acura/rl/ii-2004-2008/remont/anti-locktraction-control/#vsa-vehicle-stability-assist-system__dtc-27-steering-angle-sensor) ). Is the steering angle sensor OK? YES - Go to step 13. NO - Faulty steering angle sensor, replace it.
13. Turn the ignition switch OFF.
14. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), then remove the steering column covers (see «STEERING COLUMN REMOVAL AND INSTALLATION»(/acura/rl/ii-2004-2008/remont/manual-power-steering/#power-steering-system-electronic-power-steering-system__steering-column-removal-and-installation) ).
15. Disconnect the steering angle sensor 5P connector.
16. Disconnect the adaptive front lighting control unit 40P connector.
17. Disconnect the VSA modulator-control unit 47P connector.
18. Check for continuity between body ground and adaptive front lighting control unit 40P connector terminals No. 18 and No. 38 respectively. Is there continuity? YES - Repair a short to ground in the wire. NO - Go to step 19.
19. Check for continuity between adaptive front lighting control unit 40P connector terminals No. 18 and No. 38. Is there continuity? YES - Repair a short in the wires. NO - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

DTC B2132: Steering Angle Sensor Learning Error

Note. Before troubleshooting, check the VSA system DTCs. If the VSA system is OK, do this troubleshooting.

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Test-drive at 31 mph (50 km/h) for 2 minutes without wheel spin. (If wheel spin happens, repeat this procedure.)
5. Check for DTCs with the HDS. Are there any DTCs except B2132 and B2133 indicated? YES - Go to the indicated DTC troubleshooting. NO - Go to step 6.
6. Check for DTCs with the HDS. Are DTCs B2132 and B2133 indicated? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.

DTC B2134: Wheel Speed (RLP, RRP line) Circuit Open

Note. Before troubleshooting, check the VSA system DTCs. If the VSA system is OK, do this troubleshooting.

Scheme 16

Scheme 17

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Test-drive at 25 mph (40 km/h) for 1 minute.
5. Check for DTCs with the HDS. Is DTC B2134 indicated? YES - Go to step 6. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections.
6. Test-drive at 19 mph (30 km/h) for a few minutes.
7. Select the AFS from the HDS, and enter the DATA LIST.
8. Check the ON/OFF information of the LEFT REAR WHEEL SPEED and RIGHT REAR WHEEL SPEED in the DATA LIST. Is the information for both ON? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Go to step 9.
9. Turn the ignition switch OFF.
10. Disconnect the adaptive front lighting control unit 40P connector.
11. Disconnect the VSA modulator-control unit 47P connector.
12. Connect VSA modulator-control unit 47P connector terminals No. 9 and No. 47 to body ground with jumper wires.
13. Check for continuity between body ground and adaptive front lighting control unit 40P connector terminals No. 20 and No. 40 individually. Is there continuity? YES - Replace the VSA modulator-control unit. NO - Repair an open in the wire.

DTC B2135: A/T Reverse Signal Error

1. Connect the HDS to the data link connector.
2. Turn the ignition switch OFF, and then back ON (II).
3. Check for A/T system DTCs with the HDS. Is there any DTC other than B2135 indicated? YES - Go to the indicated DTC troubleshooting. NO - Go to step 4.
4. Clear the DTC with the HDS.
5. Turn the ignition switch OFF, and then back ON (II).
6. Check for DTCs with the HDS. Is the DTC B2135 indicated? YES - Go to step 7. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the adaptive front lighting control unit connector.
7. Shift the lever from P to R position.
8. Select the TEST MODE MENU from the HDS, and enter the DATA LIST.
9. Check the ON/OFF information of the AT SHIFT R POSITION in the DATA LIST. Is the information indicated ON? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Replace the gauge control module (see «GAUGE CONTROL MODULE REPLACEMENT»(/acura/rl/ii-2004-2008/remont/gauges-instrument-panels/#gauges__gauge-control-module-replacement) ).

Scheme 18

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Select the BODY ELECTRICAL menu from the HDS.
5. Select the AFS from the HDS, then enter the TEST MODE MENU.
6. Select the FUNCTION TEST, then select the ADAPTIVE FRONT LIGHTING.
7. Select the HEADLIGHT-LEFT/RIGHT and the HEADLIGHT-UP/DOWN with the HDS, and move the adaptive front lighting gearbox motor.
8. Check for the DTC with the HDS. Is DTC B2136 indicated? YES - Go to step 9. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.
9. Turn the ignition switch OFF.
10. Test the left adaptive front lighting gearbox (see «ADAPTIVE FRONT LIGHTING GEARBOX TEST»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). Is the left adaptive front lighting gearbox OK? YES - Go to step 11. NO - Replace the left adaptive front lighting gearbox.
11. Disconnect the adaptive front lighting control unit 40P connector.
12. Disconnect the left adaptive front lighting gearbox 8P connector.
13. Check for continuity between body ground and left adaptive front lighting gearbox 8P connector terminals No. 3, No. 4, No. 7, and No. 8 individually. Is there continuity? YES - Repairs short to ground in the wire. NO - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

Scheme 19

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Select the BODY ELECTRICAL menu from the HDS.
5. Select the AFS from the HDS, then enter the TEST MODE MENU.
6. Select the FUNCTION TEST, then select the ADAPTIVE FRONT LIGHTING.
7. Select the HEADLIGHT-LEFT/RIGHT and the HEADLIGHT-UP/DOWN with the HDS, and move the adaptive front lighting gearbox motor.
8. Check for the DTC with the HDS. Is DTC B2137 indicated? YES - Go to step 9. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the steering angle sensor connector and at the adaptive front lighting control unit connector.
9. Turn the ignition switch OFF.
10. Test the right adaptive front lighting gearbox (see «ADAPTIVE FRONT LIGHTING GEARBOX TEST»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). Is the right adaptive front lighting gearbox OK? YES - Go to step 11. NO - Replace the right adaptive front lighting gearbox.
11. Disconnect the adaptive front lighting control unit 40P connector.
12. Disconnect the right adaptive front lighting gearbox 8P connector.
13. Check for continuity between body ground and right adaptive front lighting gearbox 8P connector terminals No. 3, No. 4, No. 7, and No. 8 individually. Is there continuity? YES - Repair a short to ground in the wire. NO - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

Scheme 20

Scheme 21

Scheme 22

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Check for DTCs with the HDS. Is DTC B2139 indicated? YES - Go to step 5. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the headlight leveling motor connector and at the adaptive front lighting control unit connector.
5. Turn the ignition switch OFF.
6. Disconnect the adaptive front lighting control unit 40P connector.
7. Disconnect the left and right headlight leveling motor 3P connectors.
8. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 1 and body ground. Is there continuity? YES - Repair a short to ground in the wire. NO - Go to step 9.
9. Reconnect the adaptive front lighting control unit 40P connector.
10. Turn the ignition switch ON (II).
11. Measure the voltage between adaptive front lighting control unit 40P connector terminals No. 1 and No. 30. Is there about 5 V? YES - Do the headlight leveling motor test (see «HEADLIGHT LEVELING MOTOR TEST»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__headlight-leveling-motor-test) ). NO - Go to step 12.
12. Measure the voltage between body ground and adaptive front lighting control unit 40P connector terminals No. 21 and No. 22 individually. Is there battery voltage? YES - Check G401 and ground at terminals No. 24 and No. 25. If OK, replace the faulty adaptive front lighting control unit, and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Check the No. 11 (7.5 A) and No. 29 (7.5 A) fuses in the driver's under-dash fuse/relay box. If the fuses are OK, check for an open in the wire between the driver's under-dash fuse/relay box and the adaptive front lighting control unit. If one of the fuses is blown, replace the fuse and check for a short in the wire between the driver's under-dash fuse/relay box and the adaptive front lighting control unit.

Scheme 23

Scheme 24

Scheme 25

Scheme 26

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Check for DTCs with the HDS. Is DTC B2140 indicated? YES - Go to step 5. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the headlight leveling motor connector and at the adaptive front lighting control unit connector.
5. Turn the ignition switch OFF.
6. Disconnect the adaptive front lighting control unit 40P connector.
7. Disconnect the left and right headlight leveling motor 3P connectors.
8. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 36 and body ground. Is there continuity? YES - Repair a short to ground in the wire. NO - Go to step 9.
9. Connect headlight leveling motor 3P connector terminal No. 2 to body ground with a jumper wire.
10. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 36 and body ground. Is there continuity? YES - Go to step 11. NO - Repair an open in the wire.
11. Reconnect the adaptive front lighting control unit 40P connector.
12. Reconnect both headlight leveling motor 3P connectors.
13. Turn the ignition switch ON (II).
14. Measure the voltage between adaptive front lighting control unit 40P connector terminals No. 36 (+) and No. 30 (-). Is there about 0.5-4.5 V? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Do the headlight leveling motor test (see «HEADLIGHT LEVELING MOTOR TEST»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__headlight-leveling-motor-test) ).

Scheme 27

Scheme 28

Scheme 29

Scheme 30

Scheme 31

Scheme 32

Scheme 33

Scheme 34

Scheme 35

Scheme 36

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Check for DTCs with the HDS. Is DTC B2141 indicated? YES - Go to step 5. NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the suspension stroke sensor connector and at the adaptive front lighting control unit connector.
5. Turn the ignition switch OFF.
6. Disconnect the adaptive front lighting control unit 40P connector.
7. Disconnect the suspension stroke sensor 3P connector.
8. Check for continuity between body ground and adaptive front lighting control unit 40P connector terminals No. 14, No. 23, and No. 37 individually. Is there continuity? YES - Repair a short to ground in the wire. NO - Go to step 9.
9. Connect suspension stroke sensor 3P connector terminal No. 2 to body ground with a jumper wire.
10. Check for continuity between body ground and adaptive front lighting control unit 40P connector terminal No. 14. is there continuity? YES - Go to step 11. NO - Repair an open in the wire.
11. Connect suspension stroke sensor 3P connector terminal No. 1 to body ground with a jumper wire.
12. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 37 and body ground. Is there continuity? YES - Go to step 13. NO - Repair an open in the wire.
13. Connect suspension stroke sensor 3P connector terminal No. 3 to body ground with a jumper wire.
14. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 23 and body ground. Is there continuity? YES - Go to step 15. NO - Repair an open in the wire.
15. Reconnect the adaptive front lighting control unit 40P connector.
16. Turn the ignition switch ON (II).
17. Measure the voltage between adaptive front lighting control unit 40P connector terminals No. 37 (+) and No.23 (-). Is there about 4.5-5.5 V? YES - Go to step 18. NO - Go to step 22 .
18. Turn the ignition switch OFF.
19. Reconnect the suspension stroke sensor 3P connector.
20. Turn the ignition switch ON (II).
21. Measure the voltage between adaptive front lighting control unit 40P connector terminals No. 14 (+) and No. 23 (-). Is there about 0.5-4.5 V? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Faulty suspension stroke sensor, replace it (see «SUSPENSION STROKE SENSOR REPLACEMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).
22. Measure the voltage between body ground and adaptive front lighting control unit 40P connector terminals No. 21 and No. 22 individually. Is there battery voltage? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Check the No. 11 (7.5 A) and No. 29 (7.5 A) fuses in the driver's under-dash fuse/relay box. If the fuses are OK, check for an open in the wire between the driver's under-dash fuse/relay box and the adaptive front lighting control unit. If one of the fuses is blown, replace the fuse and check for a short in the wire between the driver's under-dash fuse/relay box and the adaptive front lighting control unit.

DTC B2142: Adaptive Front Lighting Control Unit Sub CPU Communication Error; DTC B2143: Adaptive Front Lighting Control Unit Sub CPU Memory Error; DTC B2144: Adaptive Front Lighting Control Unit Sub CPU EEPROM Error

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Check for DTCs with the HDS. Are DTCs B2142, B2143, and/or B2144 indicated? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the adaptive front lighting control unit connector.

Scheme 37

Scheme 38

Scheme 39

Scheme 40

Scheme 41

Scheme 42

Scheme 43

Scheme 44

Scheme 45

Scheme 46

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Turn the steering wheel 90 degrees or more from the center position to left and right position.
5. Select the BODY ELECTRICAL menu from the HDS.
6. While maintaining communication with the HDS, test-drive in a straight line for 98.4 feet (30 m) at 16 mph (25 km/h) or more.
7. Check the AFS indicator in the gauge control module. Does the AFS indicator come on? YES - Go to step 10 . NO - Go to step 8.
8. Select the ADAPTIVE FRONT LIGHTING from the HDS, and enter the DATA LIST.
9. Check the STEERING ANGLE LEARN information in the DATA LIST. Is the steering angle learn finished? YES - Go to step 10. NO - Go to step 6 , and repeat the procedure.
10. Test-drive at 7 mph (10 km/h) for more than 3 minutes.
11. Check for DTCs with the HDS. Are any other DTCs indicated with B2145? YES - Go to the indicated DTC troubleshooting. NO - Go to step 12.
12. Select the FUNCTION TEST from the HDS.
13. Select the ADAPTIVE FRONT LIGHTING, and check the headlights operation with the FORCED OPERATION TEST. NOTE: The left headlight should move 20 degrees to the left then return, and the right headlight should move 20 degrees to the right then return. Do the headlights operate normally? YES - Go to step 14. NO - Go to step 29 .
14. Turn the ignition switch OFF.
15. Disconnect the adaptive front lighting control unit 40P connector.
16. Disconnect the left adaptive front lighting gearbox 8P connector.
17. Check for continuity between body ground and adaptive front lighting control unit 40P connector terminals No. 13, No. 31, and No. 32 individually. Is there continuity? YES - Repair a short to ground in the wire. NO - Go to step 18.
18. Connect left adaptive front lighting gearbox 8P connector terminal No. 5 to body ground with a jumper wire.
19. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 13 and body ground. Is there continuity? YES - Go to step 20. NO - Repair an open in the wire.
20. Connect left adaptive front lighting gearbox 8P connector terminal No. 1 to body ground with a jumper wire.
21. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 32 and body ground. Is there continuity? YES - Go to step 22. NO - Repair an open in the wire.
22. Connect left adaptive front lighting gearbox 8P connector terminal No. 6 to body ground with a jumper.
23. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 31 and body ground. Is there continuity? YES - Go to step 24. NO - Repair an open in the wire.
24. Reconnect the adaptive front lighting control unit 40P connector.
25. Turn the ignition switch ON (II).
26. Do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).
27. Turn the steering wheel to the center position, and hold it in that position.
28. Measure the voltage between adaptive front lighting control unit 40P connector terminals No. 13 (+) and No. 31 (-). Is there about 0.8-1.5 V? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Faulty hall sensor, replace the left adaptive front lighting gearbox (see «ADAPTIVE FRONT LIGHTING GEARBOX REPLACEMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).
29. Turn the ignition switch OFF.
30. Disconnect the left adaptive front lighting gearbox 8P connector.
31. Test the left adaptive front lighting gearbox (see «ADAPTIVE FRONT LIGHTING GEARBOX TEST»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). Is the left adaptive front lighting gearbox OK? YES - Go to step 32. NO - Replace the left adaptive front lighting gearbox (see «ADAPTIVE FRONT LIGHTING GEARBOX REPLACEMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).
32. Connect left adaptive front lighting gearbox 8P connector terminals No. 3, No. 4, No. 7, and No. 8 to body ground with jumper wires.
33. Check for continuity between body ground and adaptive front lighting control unit 40P connector terminals No. 7, No. 9, No. 27, and No. 29 individually. Is there continuity? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Repair an open in the wire.

Scheme 47

Scheme 48

Scheme 49

Scheme 50

Scheme 51

Scheme 52

Scheme 53

Scheme 54

Scheme 55

Scheme 56

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Turn the headlight switch ON.
4. Turn the steering wheel 90 degrees or more from the center position to the left or right position.
5. Select the BODY ELECTRICAL menu from the HDS.
6. While maintaining communication with the HDS, test-drive in a straight line for 98.4 feet (30 m) at 16 mph (25 km/h) or more.
7. Check the AFS indicator in the gauge control module. Does the AFS indicator come on? YES - Go to step 10 . NO - Go to step 8.
8. Select the AFS from the HDS, and enter the DATA LIST.
9. Check the STEERING ANGLE LEARN information in the DATA LIST. Is the steering angle learn finished? YES - Go to step 10. NO - Go to step 6 , and repeat the procedure.
10. Test-drive at 7 mph (10 km/h) for more than 3 minutes.
11. Check for DTCs with the HDS. Are any other DTCs indicated with B2146? YES - Go to the indicated DTC troubleshooting. NO - Go to step 12.
12. Select the FUNCTION TEST from the HDS.
13. Select the ADAPTIVE FRONT LIGHTING, and check the headlights operation with the FORCED OPERATION TEST. NOTE: The left headlight should move 20 degrees to the left side and return, and the right headlight should move 20 degrees to the right side and return. Do the headlights operate normally? YES - Go to step 14. NO - Go to step 29 .
14. Turn the ignition switch OFF.
15. Disconnect the adaptive front lighting control unit 40P connector.
16. Disconnect the right adaptive front lighting gearbox 8P connector.
17. Check for continuity between body ground and adaptive front lighting control unit 40P connector terminals No. 31, No. 32, and No. 33 individually. Is there continuity? YES - Repair a short to ground in the wire. NO - Go to step 18.
18. Connect right adaptive front lighting gearbox 8P connector terminal No. 5 to body ground with a jumper wire.
19. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 33 and body ground. Is there continuity? YES - Go to step 20. NO - Repair an open in the wire.
20. Connect right adaptive front lighting gearbox 8P connector terminal No. 1 to body ground with a jumper wire.
21. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 32 and body ground. Is there continuity? YES - Go to step 22. NO - Repair an open in the wire.
22. Connect right adaptive front lighting gearbox 8P connector terminal No. 6 to body ground with a jumper wire.
23. Check for continuity between adaptive front lighting control unit 40P connector terminal No. 31 and body ground. Is there continuity? YES - Go to step 24. NO - Repair an open in the wire.
24. Reconnect the adaptive front lighting control unit 40P connector.
25. Turn the ignition switch ON (II).
26. Do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).
27. Turn the steering wheel to the center position, and hold it in that position.
28. Measure the voltage between adaptive front lighting control unit 40P connector terminals No. 33 (+) and No.31 (-). Is there about 0.8-1.5 V? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Faulty hall sensor, replace the right adaptive front lighting gearbox (see «ADAPTIVE FRONT LIGHTING GEARBOX REPLACEMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).
29. Turn the ignition switch OFF.
30. Disconnect the right adaptive front lighting gearbox 8P connector.
31. Test the right adaptive front lighting gearbox (see «ADAPTIVE FRONT LIGHTING GEARBOX TEST»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). Is the right adaptive front lighting gearbox OK? YES - Go to step 32. NO - Replace the right adaptive front lighting gearbox (see «ADAPTIVE FRONT LIGHTING GEARBOX REPLACEMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).
32. Connect right adaptive front lighting gearbox 8P connector terminals No. 3, No. 4, No. 7, and No. 8 to body ground with jumper wires.
33. Check for continuity between body ground and adaptive front lighting control unit 40P connector terminals No. 6, No. 8, No. 26, and No. 28 individually. Is there continuity? YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). NO - Repair an open in the wire.

Adaptive Front Lighting Control Unit Learning Procedure Index

Do the appropriate adaptive front lighting control unit learning procedure when any of the related parts of the adaptive front lighting system are removed or replaced.

1. When the adaptive front lighting control unit is replaced (a brand new adaptive front lighting control unit is installed) (see «WHEN THE ADAPTIVE FRONT LIGHTING CONTROL UNIT IS REPLACED (A BRAND NEW ADAPTIVE FRONT LIGHTING CONTROL UNIT IS INSTALLED).»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-the-adaptive-front-lighting-control) ).
2. When adaptive front lighting control unit is replaced (a known-good adaptive front lighting control unit is installed) (see «WHEN THE ADAPTIVE FRONT LIGHTING CONTROL UNIT IS REPLACED (A KNOWN-GOOD ADAPTIVE FRONT LIGHTING CONTROL UNIT IS INSTALLED).»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-the-adaptive-front-lighting-control) ).
3. When the suspension stroke sensor is replaced (see «WHEN THE SUSPENSION STROKE SENSOR IS REMOVED OR REPLACED, OR THE SUSPENSION STROKE SENSOR LINK IS DISASSEMBLED.»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-the-suspension-stroke-sensor-is) ).
4. When the suspension stroke sensor is removed, or the suspension stroke sensor is disassembled (see «WHEN THE SUSPENSION STROKE SENSOR IS REMOVED OR REPLACED, OR THE SUSPENSION STROKE SENSOR LINK IS DISASSEMBLED.»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-the-suspension-stroke-sensor-is) ).
5. When the steering angle sensor is removed or replaced (see «STEERING ANGLE SENSOR REPLACEMENT»(/acura/rl/ii-2004-2008/remont/anti-locktraction-control/#vsa-vehicle-stability-assist-system__steering-angle-sensor-replacement) ).
6. When the VSA modulator-control unit is replaced (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(/acura/rl/ii-2004-2008/remont/anti-locktraction-control/#vsa-vehicle-stability-assist-system__vsa-modulator-control-unit-removal-and-installation) )
7. When a headlight is replaced (see «WHEN THE HEADLIGHT IS REPLACED, OR WHEN THE ADAPTIVE FRONT LIGHTING GEARBOX IS REPLACED.»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-the-headlight-is-replaced-or) ).
8. When an adaptive front lighting gearbox is replaced (see «WHEN THE HEADLIGHT IS REPLACED, OR WHEN THE ADAPTIVE FRONT LIGHTING GEARBOX IS REPLACED.»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-the-headlight-is-replaced-or) ).
9. When the AFS OFF switch is replaced (see «WHEN THE AFS OFF SWITCH OR COMBINATION LIGHT SWITCH IS REPLACED.»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-the-afs-off-switch-or) ).
10. When the combination light switch is replaced (see «WHEN THE AFS OFF SWITCH OR COMBINATION LIGHT SWITCH IS REPLACED.»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-the-afs-off-switch-or) ).
11. When an HID unit is replaced (see «WHEN AN HID UNIT OR HID BULB IS REPLACED.»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-an-hid-unit-or-hid) ).
12. When an HID bulb is replaced (see «WHEN AN HID UNIT OR HID BULB IS REPLACED.»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__when-an-hid-unit-or-hid) ).

When the adaptive front lighting control unit is replaced (a brand new adaptive front lighting control unit is installed).

Note. If the AFS indicator is blinking, check the DTCs.

1. Remove all of the baggage from the vehicle.
2. Turn the ignition switch ON (II).
3. Make sure the AFS indicator does not turn off. (If the AFS indicator turns off, the adaptive front lighting control unit is not a new or previously learned unit.)
4. Turn the ignition switch OFF, and then back ON (II).
5. Within 5 seconds, turn the headlight switch ON/OFF or to passing three times.
6. Make sure the AFS indicator blinks in a 1 second cycle. (If the indicator does not blink, return to step 2 .)
7. Turn the headlights ON, and make sure the headlights move while the AFS control unit runs the initialization function (see «INITIALIZE FUNCTION»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__initialize-function) ).
8. Turn the steering wheel 90 degrees or more from the center position to left and right position.
9. Test-drive, with only the driver in the vehicle, in a straight line for 98.4 feet (30 m) at 16 mph (25 km/h) or more.
10. Make sure the AFS indicator turns off. (If the indicator does not turn off, repeat the steps 8 and 9 .)
11. Adjust the headlights (see «HEADLIGHT ADJUSTMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#exterior-lights__headlight-adjustment) ).

When the adaptive front lighting control unit is replaced (a known-good adaptive front lighting control unit is installed).

Note. If the AFS indicator is blinking, check the DTCs.

1. Remove all of the baggage from the vehicle.
2. Connect the HDS to the data link connector, and short the SCS line.
3. Turn the ignition switch ON (II).
4. Make sure the AFS indicator turns off after 2 seconds. (If the AFS indicator does not turn off, the adaptive front lighting control unit must be brand new.)
5. Turn the ignition switch OFF, and then back ON (II).
6. Within 5 seconds, turn the headlight switch ON/OFF or to passing three times.
7. Turn the headlights ON, and make sure the headlights move while the AFS control unit runs the initialization function (see «INITIALIZE FUNCTION»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__initialize-function) ). (If the headlights do not move, return to step 2 .)
8. Release the SCS short command with the HDS.
9. Turn the steering wheel 90 degrees or more from the center position to left and right position.
10. With the HDS communicating with the BODY ELECTRICAL, test-drive, with only the driver in the vehicle, in a straight line for 98.4 feet (30 m) at 16 mph (25 km/h) or more.
11. Select the AFS from the HDS, and enter the DATA LIST.
12. Make sure the STEERING CENTER LEARN information in the DATA LIST is finished. (If the learn is not completed, repeat the steps 9 and 10 .)
13. Adjust the headlights (see «HEADLIGHT ADJUSTMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#exterior-lights__headlight-adjustment) ).

When the suspension stroke sensor is removed or replaced, or the suspension stroke sensor link is disassembled.

Note. If the AFS indicator is blinking, check the DTCs.

1. Remove all of the baggage from the vehicle.
2. Connect the HDS to the data link connector, and short the SCS line.
3. Turn the ignition switch ON (II).
4. Make sure the AFS indicator turns off after 2 seconds. (If the AFS indicator stays on and does not turn off, the AFS control unit has been replaced with a brand new control unit.)
5. Turn the ignition switch OFF, and then back ON (II).
6. Within 5 seconds, turn the headlight switch ON/OFF or to passing three times.
7. Turn the headlights ON, and make sure the headlights move while the AFS control unit runs the initialization function (see «INITIALIZE FUNCTION»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system__initialize-function) ). (If the headlights do not move, return to step 2 .)
8. Release the SCS short command with the HDS.
9. Adjust the headlights (see «HEADLIGHT ADJUSTMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#exterior-lights__headlight-adjustment) ).

When the headlight is replaced, or when the adaptive front lighting gearbox is replaced.

1. Remove all of the baggage from the vehicle.
2. Turn the ignition switch ON (II).
3. Turn the headlights ON.
4. Connect the HDS to the data link connector.
5. Select the AFS from the HDS, and enter the FUNCTION TEST.
6. Make sure both headlights swing about 20 degrees left and right by the forced operation with the HDS.
7. Make sure both headlights move up and down by the forced operation with the HDS.
8. Check the combination light switch.
9. Adjust the headlights (see «HEADLIGHT ADJUSTMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#exterior-lights__headlight-adjustment) ).

When the AFS OFF switch or combination light switch is replaced.

Note. If the AFS indicator is blinking, check the DTCs.

1. Turn the ignition switch ON (II).
2. Turn the headlights ON.
3. Turn the AFS OFF switch OFF, and make sure the AFS indicator comes on. (If the AFS indicator does not come on, check for an open in the wire or poor connections at the switch connector.)

When an HID unit or HID bulb is replaced.

1. Turn the combination light switch ON, and make sure the headlights come on.
2. If a headlight was removed, adjust the headlights (see «HEADLIGHT ADJUSTMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#exterior-lights__headlight-adjustment) ).

Control Unit Input Test

Note. Before testing, troubleshoot the multiplex integrated control system first using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 57

1. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ), and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard) ).
2. Disconnect the 40P connector (A) from the adaptive front lighting control unit (B).
3. Inspect the connector and socket terminals to be sure they are all making good contact. If the terminals are bent, loose or corroded, repair them as necessary and recheck the system. If the terminals look OK, go to step 4.
4. With the connector still disconnected, make these input tests at the connector. If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, go to step 5. WIRE CAVITY REFERENCE CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 17 BLU Under all conditions NOTE: Disconnect the steering angle sensor 5P connector. Check for continuity between the No. 17 terminal and steering angle sensor 5P connector No. 3 terminal: There should be continuity. An open in the wire 18 GRN Under all conditions NOTE: Disconnect the steering angle sensor 5P connector. Check for continuity between the No. 18 terminal and steering angle sensor 5P connector No. 2 terminal: There should be continuity. An open in the wire 38 BRN Under all conditions NOTE: Disconnect the steering angle sensor 5P connector. Check for continuity between the No. 38 terminal and steering angle sensor 5P connector No. 4 terminal: There should be continuity. An open in the wire 20 YEL Under all conditions NOTE: Disconnect the VSA modulator-control unit 47P connector. Check for continuity between the No. 20 terminal and VSA modulator-control unit 47P connector No. 41 terminal: There should be continuity. An open in the wire 40 GRN Under all conditions NOTE: Disconnect the VSA modulator-control unit 47P connector. Check for continuity between the No. 40 terminal and VSA modulator-control unit 47P connector No. 9 terminal: There should be continuity. An open in the wire 23 LT BLU Under all conditions Measure resistance between the No. 37 and No. 23 terminals: There should be about 3.5-6.5 ohms. Faulty suspension stroke sensor An open in the wire 37 GRY 14 PUR Under all conditions Measure resistance between the No. Hand No. 23 terminals: There should be about 0.5-4.5 ohms. Faulty suspension stroke sensor An open in the wire 23 LT BLU 16 PUR Under all conditions Measure resistance between the No. 16 and No. 23 terminals: There should be about 0.5-4.5 ohms. Faulty suspension stroke sensor An open in the wire 23 LT BLU 6 YEL Under all conditions Measure resistance between the No. 6 and No. 8 terminals: There should be about 7.8-9.4 ohms. Faulty right adaptive front lighting gearbox An open in the wire 8 BRN 7 WHT Under all conditions Measure resistance between the No. 7 and No. 9 terminals: There should be about 7.8-9.4 ohms. Faulty left adaptive front lighting gearbox An open in the wire 9 BLU 26 BLU Under all conditions Measure resistance between the No. 26 and No. 28 terminals: There should be about 7.8-9.4 ohms. Faulty right adaptive front lighting gearbox An open in the wire 28 GRN 27 RED Under all conditions Measure resistance between the No. 27 and No. 29 terminals: There should be about 7.8-9.4 ohms. Faulty left adaptive front lighting gearbox An open in the wire 29 YEL
5. Reconnect the 40P connector to the adaptive front lighting control unit, and make these input tests at the connector. If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, the control unit must be faulty; replace it. WIRE CAVITY REFERENCE CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 24 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V. Poor ground (G401) An open in the wire 25 21 GRN Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. 11 (7.5 A) fuse in the driver's under-dash fuse/relay box An open in the wire 22 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. 29 (7.5 A) fuse in the driver's under-dash fuse/relay box An open in the wire 1 YEL Ignition switch ON (II) and headlight switch ON Measure the voltage between the No. 1 (+) and No. 30 (-) terminals: There should be battery voltage. Faulty headlight leveling motor An open in the wire 30 RED 36 PNK Ignition switch ON (II) and headlight switch ON Measure the voltage between the No. 36 (+) and No. 30 (-) terminals: There should be about 2-12 V (voltage should vary depending on leveling motor position). Faulty headlight leveling motor An open in the wire 30 RED 13 GRN Ignition switch ON (II) and headlight switch ON Measure the voltage between the No. 13 (+) and No. 31 (-) terminals: There should be about 0.5-4.5 V. Faulty left adaptive front lighting gearbox An open in the wire 31 PNK 33 WHT Ignition switch ON (II) and headlight switch ON Measure the voltage between the No. 33 (+) and No. 31 (-) terminals: There should be about 0.5-4.5 V. Faulty right adaptive front lighting gearbox An open in the wire 31 PNK 32 BLU Ignition switch ON (II) and headlight switch ON Measure the voltage between the No. 32 (+) and No. 31 (-) terminals: There should be about 4.5-5.5 V. Faulty adaptive front lighting gearbox An open in the wire 31 PNK 3 PUR AFS OFF switch pushed Measure the voltage to ground: There should be less than 1 V. Poor ground (G501) Faulty AFS OFF switch An open in the wire AFS OFF switch released Measure the voltage to ground: There should be 5 V or more. Faulty AFS OFF switch A short to ground in the wire

Headlight Leveling Motor Test

Note. Before testing, check the No. 11 (7.5 A) and No. 29 (7.5 A) fuses in the driver's under-dash fuse/relay box.

Scheme 58

1. Disconnect the 3P connector (A) from the headlight leveling motor (B).
2. Check for continuity between headlight leveling motor 3P connector terminal No. 3 and body ground. There should be continuity. If there is continuity, go to step 3. If there is no continuity, check for: Faulty adaptive front lighting control unit. An open in the wire between the adaptive front lighting control unit and the headlight leveling motor. Poor ground (G401).
3. Turn the ignition switch ON (II).
4. Measure the voltage between headlight leveling motor 3P connector terminal No. 1 and body ground. There should be battery voltage. If there is battery voltage, go to step 5. If there is no voltage, check for: Faulty adaptive front lighting control unit. An open in the wire between the adaptive front lighting control unit and the headlight leveling motor.
5. Turn the headlight switch ON.
6. Measure the voltage between headlight leveling motor 3P connector terminal No. 2 and body ground. There should be about 3-13 V. NOTE: The voltage will vary depending on the vehicle position. If there is battery voltage, replace the headlight leveling motor (see «HEADLIGHT LEVELING MOTOR REPLACEMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ). If there is no voltage, check for: Faulty adaptive front lighting control unit. An open in the wire between the adaptive front lighting control unit and the headlight leveling motor.

Scheme 59

Scheme 60

1. Remove the instrument fascia (see «DRIVER'S SWITCH PANEL REMOVAL/INSTALLATION»(/acura/rl/ii-2004-2008/remont/exteriorinterior-trim/#dashboard__drivers-switch-panel-removalinstallation) ).
2. Disconnect the 6P connector (A) from the AFS OFF switch (B).
3. Check for continuity between the terminals in each switch position as shown.
4. If the continuity is not as specified, remove the screws and replace the switch.
5. After replacement, do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

Scheme 61

1. Disconnect the adaptive front lighting gearbox 8P connector (A) from the headlight.
2. Measure the resistance between the adaptive front lighting gearbox 8P connector terminals No. 4 and No. 7, and between terminals No. 3 and No. 8. There should be about 4.5-5.5 2.
3. If the resistance is not as specified, replace the adaptive front lighting gearbox.
4. After replacement, do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

Scheme 62

1. Remove the suspension stroke leveling sensor (see «SUSPENSION STROKE SENSOR REPLACEMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).
2. Measure the resistance between suspension stroke sensor 3P connector terminals No. 1 and No. 3. There should be about 3.5-6.5 kohms.
3. Measure the resistance between suspension stroke sensor 3P connector terminals No. 2 and No. 3 with the linkage (A) moved. There should be about 0.5-4.5 kohms.
4. If the resistance is not as specified, replace the suspension stroke sensor.
5. After replacement, do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

Scheme 63

1. Lift the vehicle, and support it with safety stands (see «LIFT AND SUPPORT POINTS»(/acura/rl/ii-2004-2008/remont/paintcoatings/#general-information__lift-and-support-points) ).
2. Disconnect the 3P connector (A) from the suspension stroke sensor (B).
3. Remove the bolts and nut, then remove the suspension stroke sensor.
4. Install in the reverse order of removal.
5. After replacement, do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

Scheme 64

Scheme 65

Scheme 66

Scheme 67

1. Remove the headlight assembly (see «HEADLIGHT REPLACEMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#exterior-lights) ).
2. Remove the HID unit from the headlight (see «FRONT TURN SIGNAL LIGHT BULB»(/acura/rl/ii-2004-2008/remont/exterior-lights/#exterior-lights) ).
3. Turn the cover (A) 45° counterclockwise to remove it from the headlight housing.
4. Remove the screws and the adaptive front lighting gearbox cover (A) and gasket (B).
5. Turn the adaptive front lighting gearbox connector (A) 45° clockwise, and push the connector into the headlight housing (B).
6. Remove the three screws and the adaptive front lighting gearbox (A).

Scheme 68

Scheme 69

1. Align the gearbox cam (A) with the mark (B) on the gearbox, then install the gearbox in the reverse order of removal.
2. Install the adaptive front lighting gearbox cover (A). NOTE: Check the gasket (B) of the gearbox cover, and replace it if it is destroyed or compressed.
3. After installation, do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

Scheme 70

Scheme 71

1. Remove the headlight assembly (see «HEADLIGHT REPLACEMENT»(/acura/rl/ii-2004-2008/remont/exterior-lights/#exterior-lights) ).
2. Turn the HID light cover 45° counterclockwise to remove it from the headlight housing.
3. Turn the leveling motor (A) 45° clockwise.
4. Pull the headlight reflector (A) slightly, and remove the headlight leveling motor (B).
5. Install in the reverse order of removal.
6. After installation, do the adaptive front lighting control unit learning procedure (see «ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE»(/acura/rl/ii-2004-2008/remont/exterior-lights/#adaptive-front-lighting-system) ).

See also:
• GAUGE CONTROL MODULE INPUT TEST
• MICU INPUT TEST
• WIPER/WASHER SWITCH (COMBINATION SWITCH CONTROL UNIT) INPUT TEST
• DTC 27: STEERING ANGLE SENSOR
• DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION
• STEERING COLUMN REMOVAL AND INSTALLATION
• GAUGE CONTROL MODULE REPLACEMENT
• STEERING ANGLE SENSOR REPLACEMENT
• VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION
• HEADLIGHT ADJUSTMENT
• TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
• DRIVER'S SWITCH PANEL REMOVAL/INSTALLATION
• LIFT AND SUPPORT POINTS
• HEADLIGHT REPLACEMENT
• ADAPTIVE FRONT LIGHTING CONTROL UNIT LEARNING PROCEDURE
• HEADLIGHT LEVELING MOTOR TEST
• WHEN THE ADAPTIVE FRONT LIGHTING CONTROL UNIT IS REPLACED (A BRAND NEW ADAPTIVE FRONT LIGHTING CONTROL UNIT IS INSTALLED).
• WHEN THE SUSPENSION STROKE SENSOR IS REMOVED OR REPLACED, OR THE SUSPENSION STROKE SENSOR LINK IS DISASSEMBLED.
• WHEN THE HEADLIGHT IS REPLACED, OR WHEN THE ADAPTIVE FRONT LIGHTING GEARBOX IS REPLACED.
• WHEN THE AFS OFF SWITCH OR COMBINATION LIGHT SWITCH IS REPLACED.
• WHEN AN HID UNIT OR HID BULB IS REPLACED.
• INITIALIZE FUNCTION