AUDI A4 2000 B5 / 1.G Brakes ABS EDL ASR Bosch 5.3 User Guide

01-127

ABS/EDL
-K47- Brake
system ASR

-
K86-
1) Reasons why the indicator lamps light up





X





X
The vehicle can be equipped either with or without ASR. No DTCs are stored in DTC
memory. The ABS/EDL lamp remains constantly lit after ignition is switched on and the
the red "brake system malfunction" symbol also lights up 3 seconds after ignition is
switched on. The traction control indicator lamp does not light up even for vehicles
equipped with ASR.

There is an open circuit or short circuit to B+ in the wire that controls the ABS/EDL
warning lamp between terminal 21 of the ABS control module -J104- and the instrument
cluster; carry out "Electrical test" step 8 page 01
-166
.
Voltage supply for control module less than 6 volts; carry out "Electrical test" step 1
page 01
-166
.


X

No DTCs are stored in DTC memory. The red "brake system malfunction" symbol
remains lit after the ignition is switched on.

The brake fluid level is too low.
Malfunction in instrument cluster: Carry out "Electrical test" step 9, page 01
-166
.
1) The traction control indicator light is only available in vehicles equipped with ASR.
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