ABS/EDL/ASR/ESP Indicator Lamps

ABS/EDL/ASR/ESP Indicator Lamps

Warning Lamps










Brake Pad Wear Indicator Lamp (K32)





• If the brake pad wear indicator lamp - 2 - does not switch off 3 seconds after the ignition is switched on or if it lights up when vehicle is driven, it could be caused by the following malfunctions:

- a - Brake pads may be worn.

Check front and rear axle brake pads/linings. Replace worn brake pads/linings.

- b - There is a malfunction in the wire routing.

ABS Warning Lamp (K47)





• If the ABS warning lamp - 3 - does not go out after the ignition is switched on and the test sequence is complete, it could be caused by the following errors:

- a - Voltage supply is under 10 volts.

- b - There is an ABS malfunction.


The ABS system remains switched off during an ABS malfunction - b -, but the traditional brake system remains fully functional.

- c - There was a periodic wheel speed sensor malfunction since the last vehicle start.

If this is the case, the ABS warning lamp will go out automatically after vehicle is started again and a speed of 20 km/h has been exceeded.

- d - Connection from instrument cluster to ABS Control Module (J104) has an open circuit.

- e - The instrument cluster is faulty.

ABS Warning Lamp (K47) and Brake System Warning Lamp (K118)





• If the ABS warning lamp - 3 - goes out but brake system warning lamp - 4 - lights up, the malfunctions causes may be:

- a - Parking brake is engaged.

- b - Brake fluid level is too low (warning lamp blinks).

Three warning tones are audible after switching on the ignition.

- c - A malfunction in wiring to brake system warning lamp.

• If the ABS warning lamp - 3 - and brake system warning lamp - 4 - lights up, ABS system is malfunctioning. A change in braking behavior should be checked.


After the ABS warning lamp and brake system warning lamp light up, rear wheels may lock prematurely when braking.

ASR/ESP Control Lamp (K155)





• If the ASR/ESP control lamp - 1 - does not turn off after the ignition is switched on and the test sequence is completed, the malfunction may be:

There is a malfunction present which only affects the ASR/ESP. The ABS/EDL and EBD safety systems are still completely functional. Refer to -> Vehicle diagnostic tester to check DTC memory.

- a - Short circuit to B+ in ASR/ESP Button (E256).

- b - A malfunction in the actuation of ASR/ESP control lamp.

- c - ASR/ESP system was switched off by the ASR/ESP button.

If the ASR/ESP control lamp flashes while driving, the ASR or ESP systems are regulating the system.

• If the ASR/ESP control lamp - 1 - did not light up during self-test, the following malfunction is present:

- a - The ASR/ESP control lamp is defective. Refer to -> Vehicle diagnostic tester for electrical test.