B1275

DTC B1275: Headlight Switch OFF Position Circuit Malfunction

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II), and wait for 2 seconds.
3. Turn the parking (SMALL) light switch ON and wait for 2 seconds.
4. Turn the headlight light switch (LOW) ON and wait for 2 seconds.
5. Change the dimmer switch position from low beam to high beam and wait for 2 seconds.
6. Check for DTCs with the HDS.

Is DTC B1275 indicated?

YES - Go to step 7.

NO - Intermittent failure, the combination light switch and the combination switch control unit are OK at this time. Check for loose or poor connections at the combination light switch connector, and at the combination switch control unit connector.

7. With the headlight switch OFF select LIGHTING SYSTEM with the HDS, and enter DATA LIST.
8. Check the ON/OFF information of the HEADLIGHT SWITCH OFF in the DATA LIST.

Is the information indicator ON, and change to OFF when the headlight switch is put to the PARKING and the HEADLIGHT positions?

YES - Faulty combination switch control unit. Replace the combination switch.

NO - Go to step 9.

9. Perform the headlight switch test. Testing and Inspection

Is the headlight switch test OK?

YES - Repair the wire between the No. 5 terminal of the combination light switch 6P connector and the No. 5 terminal of the combination switch control unit 12P connector.

NO - Replace the combination light switch.