Test Point 13, DTC 4340

Fault, DTC
Possible causes, elimination, notes


Test point 13
Stop light switch
DTC 4340

- Check with the System Tester 2 via the "Input signals" menu. Press the brake pedal after selection of the stoplight switch. Required display: Display on screen changes from "not actuated" to "actuated".
- Pull off wires on the stop light switch (No. 1). Test the stoplight switch with a multimeter (remove switch for the test if necessary).







- Check stoplight switch adjustment (operating point).
- Check wiring according to the wiring diagram.