1998 VOLKSWAGEN JETTA warning

Downloaded from www.Manualslib.com manuals search engine 01-123


Functional check: ABS warning light -K47-
Test
step V.A.G
1598
sockets Item
tested
Test
conditions
- Additional
operations Specification
Measures for
deviations from
specification
16 - Function of
ABS
warning
light -K47-
Switch
ignition on ABS warning light -
K47- lights up for
approx. 2 seconds
and goes out again

Electrical Wiring
Diagrams,
Troubleshooting &
Component Locations
binder
Repair Manual,
Body Interior,Repair
Group 70 - Check wiring using
wiring diagram
- Malfunction in
instrument cluster
Стр. 22из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

Downloaded from www.Manualslib.com manuals search engine 01-124


Functional check: Warning light for brake system -K118-
Test
step V.A.G
1598
sockets Item
tested
Test
conditions
- Additional
operations Specification
Measures for
deviations from
specification
17 - Function of
warning
light for
brake
system -
K118-
Brake fluid
level is OK.

Switch
ignition on Warning light for
brake system -
K118- lights up for
approx. 2 seconds
and goes out again
Electrical Wiring
Diagrams,
Troubleshooting &
Component
Locations binder - Check brake fluid
level warning
switch -F34- in
sealing cap

- Pull
connectors off
both front speed
sensors
- Start engine
and run at more
than 2000 rpm Warning light -
K118- lights up and
3 warnings are
sounded
Electrical Wiring
Diagrams,
Troubleshooting &
Component
Locations binder
Repair Manual,
Body Interior,Repair
Group 70 - Check wiring
using wiring
diagram
- Malfunction in
instrument cluster

- Reconnect
connectors to
both front speed
sensors again
- Check DTC
memory and
erase
Стр. 23из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

Downloaded from www.Manualslib.com manuals search engine 01-133


ABS Mark 60 On Board
Diagnostic (OBD), vehicles
from my 10.00
There are four versions of the ABS Mark 60.

ABS

ABS/EDL/ASR

ABS/EDL/ASR/ESP with front wheel drive

ABS/EDL/ASR/ESP with 4MOTION
Each version has its own control module. The
control modules can be coded accordingly
through coding bridges via tester VAS 5051 or
V.A.G 1551.
The ESP (Electronic Stabilization Program) is
an electronic dynamics Program (EDP). It
stabilizes the vehicle when oversteering or
understeering. The ESP works over the whole
speed range. If the ESP is regulating the
system the ESP warning lamp will flash 3 times
per second.

The ESP is a further extension of the
familiar vehicle safety systems.
ESP increases control over the vehicle in
critical situations. It reduces the danger of
skidding and increases the steering control
when compared with familiar vehicle safety
systems.
Стр. 1из 10 ABS Mark 60 On Board Diagnostic (OBD), vehicles from my 10.00

Downloaded from www.Manualslib.com manuals search engine 01-135


Sporadic (irregular) malfunctions will also be
recognized and stored. But if malfunctions
affecting the data bus system do not occur again
within the next 15 vehicle start and driving off
sequences, or other malfunctions within the next
50 vehicle start and driving off sequences, they
will be erased from DTC memory except for the
malfunction "Control module faulty" (forget-
malfunction counter).
After switching on the ignition and/or starting the
engine, the ABS warning light -K47- and the ESP
control lamp -K155- will light up for approx. 2
seconds.
During this period a test sequence (self-check) is
run in the control module for the following
functions:

To check if the supply voltage is at least 10.0
Volt,

To check control module including the valve
windings,

To check the coding of the control module,

A static check of the speed sensor (no speed
signal),

If the wheel speed signal is not OK after the car
has been driven and a speed of approx. 20
km/h (approx. 13 mph) has been exceeded, the
ABS warning light -K47- will light up again.
Стр. 3из 10 ABS Mark 60 On Board Diagnostic (OBD), vehicles from my 10.00

Downloaded from www.Manualslib.com manuals search engine 01-139


Safety precautions and fundamental
points regarding troubleshooting


Note:

The ABS is a vehicle safety system; the
appropriate knowledge is necessary to work on
the system.

In order to check complaints and to be able to
carry out pin-pointed troubleshooting, the
Diagnostic Trouble Code (DTC) memory must
be checked before commencing work on the
ABS system.

Only separate connectors when the ignition is
switched off.

Observe the appropriate instructions regarding
the handling of brake fluid.
Repair Manual, Brake System, Repair Group
47
ABS malfunctions are indicated by the ABS
warning light illuminating. Certain malfunctions
will only be recognized at speeds above 20
km/h (approx. 13 mph) (carry out road test).

If the ABS -K47- and the brake system -K118-
warning lights do not illuminate, but the brake
system is not functioning correctly then the
malfunction must be sought in the conventional
braking system.
Repair Manual, Brake System, Repair Group
45
Стр. 7из 10 ABS Mark 60 On Board Diagnostic (OBD), vehicles from my 10.00

Downloaded from www.Manualslib.com manuals search engine 01-152



12 -
Data Link
Connector
(DLC)

Location: In
center console
below
heating/air
conditioning
controls
module
13 -
Button for
ASR/ESP -
E256-

Vehicles with
ABS/EDL/ASR/ESP
only
14 -
ABS warning
light -K47-

Location: In
the instrument
cluster
Function:
Page 01
-155
15 -
Warning light
for brake
system -K118-

Location: In
the instrument
cluster
Function:
Page 01
-155
16 -
ASR/ESP
Control Lamp -
K155-

Location: In
the instrument
cluster
Function:
Page 01
-155
Стр. 13из 17 Electrical/electronic components and installing locations

Downloaded from www.Manualslib.com manuals search engine 01-155


Diagnostic Trouble Codes
(DTCs) displayed by
warning lights -K47-, -K118-
and -K155-
Warning lamps
Item
Designation
1 ABS warning light -K47-
2 Warning light for brake system -
K118-
3 ASR/ESP Control Lamp -K155-
Стр. 1из 4 Diagnostic Trouble Codes (DTCs) displayed by warning lights -K47-, -K118- and -K155-

Downloaded from www.Manualslib.com manuals search engine 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.
Стр. 2из 4 Diagnostic Trouble Codes (DTCs) displayed by warning lights -K47-, -K118- and -K155-