Turn Signal Lamp: Description and Operation

Exterior Mirror Turn Signal and Entry Lamp

• The function of the turn signal bulb and entry lamp in exterior rearview mirror can be checked via the output diagnostic test mode of the particular door control module.

• Familiarity with the function and operation of the lighting system is essential in the event of customer complaints.

• Additional information:

Refer to the Owner's manual.

Malfunction Recognition and Display

The driver door control module (J386) or front passenger door control module (J387) is equipped with OBD capabilities that facilitate fault finding.

For fault finding, use the Vehicle diagnosis, testing and information system (VAS5051B) in "Guided Fault Finding" function.

The turn signal bulbs are installed in the exterior rearview mirror housing.

In addition, there is one entry lamp each in exterior mirror housing which illuminates the dark entry area around opened driver and front passenger door.






1 Driver exterior rearview mirror turn signal bulb (L131) or front passenger exterior rearview mirror turn signal bulb
2 Driver entry lamp in exterior rearview mirror (W52) or front passenger entry lamp in exterior rearview mirror (W53)