Bosch 5.3 With ABS/EDL/ASR/ESP

Malfunction indication via warning lamps -K32-, -K47-, -K118-, and -K155-








Warning lamps

Brake pad wear indicator light -K32-





^ If the brake pad wear indicator light -K32- does not go out after the ignition is switched on, it could be caused by the errors:
-a- brake pads may be worn.
Check the brake pads at front and rear axles. Replace brake pads if worn.

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

ABS Warning Light -K47-





^ If the ABS Warning Light -K47- (item no. 2) does not go out after the ignition is switched on and the test sequence is complete, it could be caused by the 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 2.75 km/h has been exceeded.

-d- there is an open circuit in the connection from instrument cluster to ABS control module (w/EDL) -J104-.

-e- the instrument cluster is malfunctioning.

ABS Warning Light -K47- and warning light for brake system -K118-





^ If the ABS Warning Light -K47- (item no. 2) goes out, but the warning light for brake system -K118- remains lit, the malfunction causes could include:

-a- brake fluid level is too low

-b- there is a malfunction in the activation of the warning light for brake system -K118-
^ If the ABS Warning Light -K47- (item no. 2) and the warning light for brake system -K118- (item no. 3) both light up, ABS is malfunctioning and Electronic Brake Distribution (EBD) has ceased functioning.

WARNING! When the ABS Warning Light -K47- and the warning light for brake system -K118- are lit, the rear wheels can lock early during braking.

ESP Control Lamp -K155-





^ If the ESP Control Lamp -K155- (item no. 4) does not go out after the ignition is switched on and the test sequence is complete, it could be caused by the malfunctions:

-a- short circuit to B+ in the ASR/ESP button -E256-.

-b- there is a malfunction in the activation of the ESP Control Lamp -K155-.

-c- the ASR/ESP system was switched of via the ASR/ESP button -E256-.
There is a malfunction that only affects the ASR/ESP traction control system. The ABS/EDL and EBD safety systems are still completely functional though.

If the ESP Control Lamp -K155- blinks while driving, the ASR or ESP system is in regulating mode.