B1280

DTC B1280: Turn Signal Switch Circuit Malfunction

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

Is DTC B1280 indicated?

YES - Go to step 4.

NO - Intermittent failure. The turn signal switch circuit is OK at this time. Check pinfits and connections.

4. Reset the DTCs by CLEAR MENU (DTC CLEAR) of the HDS.
5. Turn the ignition switch ON (II).
6. Turn the turn signal switch to the left position and wait for 2 seconds.
7. Turn the turn signal switch to the right position and wait for 2 seconds.
8. Check for DTCs using the HDS.

Is DTC B1280 indicated?

YES - Go to step 9.

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

9. Disconnect the combination light switch 12P connector from the wiper/washer switch.
10. Check for short in the turn signal light switch terminals in each switch position.

Is there a short?

YES - Faulty, turn signal light switch, replace the combination light switch.

NO - Faulty combination switch control unit, replace the wiper/washer switch.