B1280

DTC Troubleshooting: B1280

DTC B1280:

Turn Signal Switch Circuit Malfunction

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

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Turn the turn signal switch to left position and wait for 2 seconds, then turn to right position and wait for 2 seconds.

4. Check for DTCs with the HDS.

Is DTC B1280 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the turn signal switch circuit is OK at this time. Check for loose or poor connections.

5. Turn the ignition switch to LOCK (0).

6. Disconnect the combination light switch 12P connector from the wiper/washer switch.

7. Do the combination light switch test Service and Repair and check for open or short in the turn signal switch terminals in each switch position.

Is the turn signal switch OK?

YES -

Faulty combination switch control unit, replace the wiper/washer switch Service and Repair.

NO -

Replace the combination light switch Service and Repair.