ABS Mark 70 (ABS/ASR)

Level Control System Indicator Lamps

Warning Lamps









Brake Pad Wear Indicator Lamp (K32)

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

- a -: The brake pads may be worn.

Check the front and rear axle brake pads. Replace worn brake pads.

- b -: There is a malfunction in the wiring.

ABS Warning Lamp (K47)

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

- a -: The voltage supply is under 10 volts.

- b -: There is an ABS malfunction.

CAUTION!
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 the vehicle is started again and a speed of 20 km/h has been exceeded.

- d -: The connection from the instrument cluster to the ABS control module 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 - turns off but the brake system warning lamp - 4 - lights up, it could be caused by the following malfunctions:

- 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 the wiring to the brake system warning lamp.

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

CAUTION!
After ABS Warning Lamp (K47) and Brake System Warning Lamp (K118) light up, rear wheels may lock prematurely when braking.

Traction Control Indicator Lamp (K86)

• If the traction control indicator lamp - 1 - does not turn off after the ignition is switched on and the test sequence is complete, it could be caused by the following malfunctions:

There is a malfunction present which only affects the Anti-Slip Regulation (ASR). The ABS and Electronic Brake-pressure Distribution (EBD) safety systems are still completely functional.

- a -: Short circuit to B+ in the ASR/Electronic Stabilization Program (ESP) button.

- b -: A malfunction in activation of the traction control indicator lamp.

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

If the traction control indicator lamp blinks while driving, the ASR system is operating in regulated mode.

• If the traction control indicator lamp - 1 - did not light up during the self test, it could be caused by the following malfunction:

- a -: The traction control indicator lamp is malfunctioning. Refer to electrical testing.