Test 2/Fault Code 12

Test point 2
Stop light switch
Fault code 12

- Check with System Tester 9286 on "Actual values" menu. Actuate brake pedal after selecting the stop light switch. Specified display: Display changes from open to closed.

- Pull off wires from stop light switch (No.2). Check stop light switch with multimeter (remove switch for testing if required).



- Check stop light switch adjustment. Adjustments

- Check electrical wiring according to wiring diagram.