ABS VOLKSWAGEN JETTA 1998 User Guide

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2 -
ABS control
module
(w/EDL) -
J104-

Location: on
hydraulic unit
on left of
engine
compartment

Checked by
On Board
Diagnostic
(OBD)

Checking the
multi-pin
connector to
control
module
Page 01
-106
Do not
disconnect
connector
before
successfully
completing
OBD. Switch
ignition off
before
separating
connection.
Стр. 2из 14 Electrical/electronic components and locations

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Repair Manual,
Brake System,
Repair Group 45 3 -
ABS/EDL and
ABS/EDL/ASR
hydraulic unit
-N55-

Located on
left of engine
compartment.

The ABS
hydraulic
pump -V64-
and the
inlet/outlet
valves in the
hydraulic unit
are checked
by On Board
Diagnostic
(OBD)

The ABS
hydraulic
pump -V64-
and valve
block must
not be
separated
from one
another

Removing
and installing
When
changing the
hydraulic
unit, always
seal the old
part with the
plugs from
the repair set
Part No. 1H0
698 311 A
Стр. 3из 14 Electrical/electronic components and locations

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4 -
ABS/EDL and
ABS/EDL/ASR
Control
Module -J104-

Location: on
hydraulic unit
on left of
engine
compartment

Checked by
On Board
Diagnostic
(OBD)

Checking the
multi-pin
connector to
control
module
Page 01
-106
Do not
disconnect
connector
before
successfully
completing
OBD. Switch
ignition off
before
separating
connection.
Стр. 4из 14 Electrical/electronic components and locations

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8 -
ABS warning
light -K47-

Location:
instrument
cluster
Function:
Page 01
-17
9 -
Warning light
for brake
system -K118-

Location:
instrument
cluster
Function:
Page 01
-17
10 -
ESP control
lamp -K155-

Location:
instrument
cluster
Стр. 6из 14 Electrical/electronic components and locations

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11 -
Right/left
front ABS
wheel speed
sensor -G45-/-
G47-

Checked by
On Board
Diagnostic
(OBD)

Before
inserting the
sensor clean
the inner
surface of
the sensor
mounting
and coat with
lubricating
paste G 000
650

When
connecting
the speed
sensor wire
ensure it is
not twisted in
the wheel
housing

Bolt
tightening
torque - 10
Nm
12 -
Wheel hub
with impulse
rotor for
right/left front
speed
sensors

Rotor and
speed
sensors for
front left and
right-hand
sides are
identical
Стр. 7из 14 Electrical/electronic components and locations

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13 -
Right/left rear
ABS wheel
speed sensor
-G44-/-G46-

Checked by
On Board
Diagnostic
(OBD)

Before
inserting the
sensor clean
the inner
surface of
the sensor
mounting
and coat with
lubricating
paste G 000
650

When
connecting
the speed
sensor wire
ensure it is
not twisted in
the wheel
housing

Bolt
tightening
torque - 10
Nm
14 -
Wheel hub
with impulse
rotor for
right/left rear
speed
sensors

Rotor and
speed
sensors for
left and right-
hand sides
are identical

Removing
and installing
Стр. 9из 14 Electrical/electronic components and locations

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Diagnostic Trouble Codes (DTC)
displayed by warning lights -K14-, -
K47- and -K118-

Warning lights
For vehicles with ABS/EDL/ASR and/or a
radio/navigation system, the warning
light for brake system -K118- is at
position -3-.
The function of the parking brake
warning light -K14- is then taken on by
the warning light for brake system -
K118-.
Item
Designation
1 Warning light for brake system -
K118-
2 ABS warning light -K47-
3 Parking brake indicator light -K14-
Стр. 11из 14 Electrical/electronic components and locations

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ABS warning light -K47-

Electrical Wiring Diagrams,
Troubleshooting & Component Locations
binder
If the ABS warning light -K47- (-2-) does
not go out after switching ignition on and
completion of test sequence then the
malfunction may be:
-a- Voltage supply is below 10 Volts
-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.
-e- Instrument cluster is faulty.
Стр. 12из 14 Electrical/electronic components and locations

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ABS 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- (-2-) goes
out but the warning light for brake
system -K118- (-1-) remains on and
three warning tones are audible then the
malfunction may be:
-a- The 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- (-2-) and
the brake system warning light -K118- (-
1-) light up, the ABS system is faulty
and the EBD (Electronic Brake pressure
Distribution) is not functioning.
Стр. 13из 14 Electrical/electronic components and locations

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Parking brake indicator light -K14-

Electrical Wiring Diagrams,
Troubleshooting & Component Locations
binder
Vehicles with ABS/EDL
Malfunction: Vehicle has no EDL
function
For this complaint a possible cause may be
the brake light switch -F- is incorrectly
adjusted. Adjusting brake light switch
Page 01
-131 .
Another possible cause may be the brake
light switch -F- is not functioning. The
function can be checked in Read measured
value block Page 01
-61 , display group
number 003.
If the parking brake indicator light -K14-
-3- does not go out after switching the
ignition on, the malfunction may be:
-a- The parking brake is applied.
-b- The parking brake warning light switch -
F9- for the parking brake indicator light -
K14- is faulty or incorrectly adjusted.
-c- There is a wire routing malfunction.
Стр. 14из 14 Electrical/electronic components and locations