1998 VOLKSWAGEN JETTA check engine

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Switch to measuring range:
Voltage measurement (2 V )
Test
step V.A.G
1598
sockets Item
tested Test
conditions
- Additional
operations Specification
Measures for deviations
from specification
11 42 + 43 Right rear
ABS wheel
speed
sensor -
G44-
voltage
signal
Vehicle
raised
- Check installation of
right rear ABS wheel
speed sensor -G44- and
rotor.


Ignition
switched off

- Rotate rear
right wheel at
approx. 1
rev./sec. Min. 190 mV
alternating
voltage - Check whether right
rear ABS wheel speed
sensor -G44- has been
interchanged and read
measured value block
Page 01
-240 , Display
group number 001
12 37 + 36 Left rear
ABS wheel
speed
sensor -
G46-
voltage
signal Vehicle
raised
- Check installation of left
rear ABS wheel speed
sensor -G46- and rotor.


Ignition
switched off

- Rotate rear
left wheel at
approx. 1
rev./sec. Min. 190 mV
alternating
voltage - Check whether left rear
ABS wheel speed sensor
-G46- has been
interchanged and read
measured value block
Page 01
-240 , Display
group number 001
Стр. 20из 38 Electrical check of Mark 60

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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
13 - Function of
ABS
warning
light -K47-
Ignition
switched
on
- Switch on
ignition The 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; instrument
panel - Check wiring using
wiring diagram
- Malfunction in
instrument cluster
Стр. 21из 38 Electrical check of Mark 60

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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
14 - Function of
warning light
for brake
system -
K118-
Parking
brake not
applied
Brake fluid
level OK
Ignition
switched
on Warning light for
brake system -
K118- does not
light up

- Apply
parking brake Warning light for
brake system -
K118- lights up
Electrical Wiring
Diagrams,
Troubleshooting &
Component Locations
binder
Repair Manual,
Body Interior,Repair
Group 70; instrument
panel - Check wiring using
wiring diagram
- Malfunction in
instrument cluster
Стр. 22из 38 Electrical check of Mark 60

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Functional check: ESP Control Lamp -K155-
Test
step V.A.G
1598
sockets Item
tested
Test
conditions
- Additional
operations Specification
Measures for
deviations from
specification
15 - Function of
ESP
control
lamp -
K155-
Ignition
switched
on
- Switch
ignition on ESP control lamp -
K155- lights up for 2
seconds and goes
out again Electrical Wiring
Diagrams,
Troubleshooting &
Component Locations
binder
Repair Manual,
Body Interior,Repair
Group 70; instrument
panel - Check wiring using
wiring diagram
- Malfunction in
instrument cluster
Стр. 23из 38 Electrical check of Mark 60

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Functional check: warning lamp for ASR/ESP button -E256-
Test
step V.A.G
1598
sockets Item
tested
Test conditions
- Additional
operations Specification
Measures for
deviations from
specification
16 - Function of
ASR/ESP
button -
E256-
Ignition
switched on
The function of
the ESP Control
Lamp -K155-
was checked in
test step 15. ESP control lamp -
K155- lights up for
2 seconds and
goes out again

- Operate
ASR/ESP button -
E256- ESP control lamp -
K155- lights up

- Operate
ASR/ESP button -
E256- again ESP control lamp -
K155- goes out
Test step 16: Continued on next page.
Стр. 24из 38 Electrical check of Mark 60

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Continuation of test step 16
Test
step V.A.G
1598
sockets Item
tested
Test
conditions
- Additional
operations Specification
Measures for deviations
from specification

Electrical Wiring
Diagrams, Troubleshooting
& Component Locations
binder - Check wiring using wiring
diagram
ASR/ESP button
-E256- faulty
Repair Manual, Body
Interior,Repair Group 70;
instrument panel - Replace ASR/ESP button
-E256-
Стр. 25из 38 Electrical check of Mark 60

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Test table (test steps 17 - 23)
Switch to measuring range:
Voltage measurement (20 V =) in test step 17, resistance measurement (200 )/(20 M
) in test step 17a
Test
step V.A.G
1598
sockets Item
tested Test conditions
- Additional
operations Specification
Measures for
deviations from
specification
17 - Voltage
supply for
steering
angle
sensor -
G85-
Ignition switched
off
- Disconnect
connection from
steering angle
sensor -G85-

- Disconnect multi-
pin connection T47
from ABS control
module (w/EDL) -
J104-

- Check wiring
between contact
T6a/4 and contact
T6a/1 of steering
angle sensor -G85- 10.0 - 14.5 V
Electrical Wiring
Diagrams,
Troubleshooting &
Component Locations
binder - Check wiring using
wiring diagram
Test step 17: Continued on next
page.
Стр. 26из 38 Electrical check of Mark 60

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Continuation of test step 17
Test
step V.A.G
1598
sockets Item
tested
Test conditions
- Additional
operations Specification
Measures for
deviations from
specification
17 - Voltage
supply for
steering
angle
sensor -
G85- - Ignition switched on
- Check wiring
between contact
T6a/5 and connector
contact T6a/1 of
steering angle
sensor -G85- 10.0 - 14.5 V
Electrical Wiring
Diagrams,
Troubleshooting &
Component
Locations binder - Check wiring using
wiring diagram
Test step 17a: On next page.
Стр. 27из 38 Electrical check of Mark 60