B1276

DTC B1275: Headlight Switch OFF Position Circuit Malfunction

DTC B1276: Headlight Switch Parking (SMALL) Position Circuit Malfunction

DTC B1277: Headlight Switch AUTO Position Circuit Malfunction

DTC B1278: Headlight Switch ON Position Circuit Malfunction

1. Clear the DTCs using the HDS.
2. Turn the ignition switch to OFF, and then back ON (II).
3. Check for DTCs using the HDS.

Are DTCs B1275, B1276, B1277 or B1278 indicated?

YES - Go to step 4.

NO - Intermittent failure, the headlight system is OK at this time. Check pinfits and connections.

4. Reset the DTCs using the HDS.
5. Turn the ignition switch ON (II) and wait for 2 seconds.
6. Turn the parking (small) light switch ON and wait for 2 seconds.
7. Turn the headlight light switch (LOW) ON and wait for 2 seconds.
8. Change the dimmer switch position from low beam to high beam and wait for 2 seconds.
9. Check the DTCs using the HDS.

Are DTCs B1275, B1276, B1277, B1278 also indicated?

YES - Go to step 10.

NO - Intermittent failure, the combination switch and the control unit are OK at this time. Check pinfits and connections.

10. Disconnect the combination light switch 12P connector from the wiper/washer switch.
11. Perform the combination light switch test.

Is the combination light switch check OK?

YES - Faulty combination switch control unit, replace the wiper/washer switch.

NO - Replace the combination light switch.