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B2136

DTC B2136: Left Adaptive Front Lighting Gearbox Motor Signal Error

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 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 in a safe area, and turn left two or three times.
11. Check for DTCs with the HDS.

Is DTC B2136 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. Turn the ignition switch OFF.
13. Test the left adaptive front lighting gearbox.

Is the left adaptive front lighting gearbox OK?

YES - Go to step 14.

NO - Replace the left adaptive front lighting gearbox.

14. Disconnect the adaptive front lighting control unit 40P connector.
15. Disconnect the left adaptive front lighting gearbox 8P connector.




16. 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 - Repair a short in the wire.

NO - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure.