Volkswagen Golf / Golf GTI / Jetta. Manual — part 370

01-156

ABS warning light -K47-

Electrical Wiring Diagrams,

Troubleshooting & Component
Locations binder

If the ABS warning light -K47- -1-

does not go out after switching
ignition on and completion of test
sequence then the malfunction
may be:

-a- Voltage supply is below 10

Volt

-b- There is a malfunction in the

ABS

The anti-locking brake system

remains switched off with an ABS
malfunction -b-, but the brake
system remains fully operational.

-c- Since the last time the vehicle

was started there was a
temporary speed sensor
malfunction.

In the case of a sensor

malfunction -c-, the ABS warning
light -K47- will extinguish after
restarting the engine and attaining
a speed of above 20 km/h
(approx. 13 mph).

-d- The connection from

instrument cluster to ABS Control
Module (w/EDL) -J104- is
interrupted (open circuit).

-e- Instrument cluster is faulty.

Diagnostic Trouble Codes (DTCs) displayed by warning lights -K47-, -K118- and -...

01-157

Warning lights -K47- and -K118-

Electrical Wiring Diagrams,

Troubleshooting & Component
Locations binder

WARNING!

After the ABS warning light -K47-
and warning light for brake
system -K118- have illuminated, it
is possible that the rear wheels
will lock-up earlier when braking.

If the ABS warning light -K47- -1-

goes out but the warning light for
brake system -K118- -2- remains
on, then the malfunction may be:

-a- The parking brake is applied.

-b- There is a malfunction in the

activation of the warning light for
brake system -K118-.

-c- The brake fluid level is too low.

If the ABS warning light -K47- -1-

and the warning light for brake
system -K118- -2- illuminate, the
ABS system is faulty and the
EBD (Electronic brake pressure
distribution) is not functioning.

Diagnostic Trouble Codes (DTCs) displayed by warning lights -K47-, -K118- and -...

01-158

ASR/ESP Control Lamp -K155-

Electrical Wiring Diagrams,

Troubleshooting & Component
Locations binder

If ASR/ESP control lamp -K155-
flashes while driving, the ASR or
ESP system is regulating the
system.

If the ESP control lamp -K155- -

3- does not go out after ignition is
switched on and test sequence is
completed then the malfunction
may be:

-a- Short to positive in ASR/ESP

button -E256-.

-b- There is a malfunction in the

activation of the ESP control lamp
-K155-.

-c- The ASR/ESP system has

been switched off via ASR/ESP
button -E256-.

There is a malfunction present

which only affects the safety
systems of the ASR/ESP. The
ABS/EDL and EBD safety
systems of the vehicle remain
fully functional.

Diagnostic Trouble Codes (DTCs) displayed by warning lights -K47-, -K118- and -...

01-159

On Board Diagnostic (OBD),
performing

Test prerequisites for OBD

The tires installed to all wheels must be

of the same (approved) size; tires
inflated to prescribed pressure.

Mechanical/hydraulic parts of the brake

system including brake light switch and
brake lights OK.

Hydraulic lines and connections not

leaking (visual check of hydraulic unit,
brake calipers, wheel cylinders, tandem
master brake cylinder).

ABS Control Module (w/EDL) -J104- is

correctly bolted to ABS Hydraulic Unit -
N55-.

Connector on ABS Control Module

(w/EDL) -J104- correctly plugged-in
(retainer is engaged).

Check contacts of ABS components for

damage and correct seating.

All fuses according to wiring diagram OK

(remove fuse from fuse holder to check).

Supply voltage OK (at least 10.0 V).

On Board Diagnostic (OBD), performing