display VOLKSWAGEN JETTA 1998 Service Manual

Downloaded from www.Manualslib.com manuals search engine 01-285



- Confirm entry with key Q.
Basic setting 93 ON <8>
S
ystem test activated OK
Indicated on display:
The ESP driving test is activated.
ABS warning light -K47- lights up.
-
Press key.
Rapid data transfer HELP
Select function XX Indicated on display:
This completes the stationary comparison
test. - Disconnect diagnostic connector.
- Start engine.
- Depress brake pedal firmly (brake
pressure of more than 35 bar) until the
ESP Control Lamp -K155- flashes.
Стр. 127из 129 On Board Diagnostic (OBD), performing

Downloaded from www.Manualslib.com manuals search engine 01-287


Login procedure

All functions that have so far been carried out
with V.A.G 1551 can now also be carried out
with the tester VAS 5051.

The login procedure can only be performed
once per calibration.
Coding is only possible after the workshop code
(WSC) has been introduced into V.A.G 1551 or
the new tester VAS 5051.

Test sequence

- Connect V.A.G 1551 scan tool and select
(address word 03) brake electronics control
module with ignition switched on; Page 01
-
163 .
Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press key 1 and 1 (Function "Login procedure"
is introduced with 11).
Rapid data transfer Q
11 Codin
g 2
Indicated on display:
- Confirm entry with key Q.
Coding 2 HELP
Enter code number XXXXX Indicated on display:
- Enter code number 40168.
- Confirm entry with key Q.
Rapid data transfer HELP
Select function XX Indicated on display:
Стр. 129из 129 On Board Diagnostic (OBD), performing

Downloaded from www.Manualslib.com manuals search engine 01-301


Switch to measuring range:
Voltage measurement (20 V =)
Test
step V.A.G
1598
sockets Item tested
Test
conditions
- Additional
operations Specification
Measures for
deviations from
specification
3 4 + 47 Voltage supply
(ignition/starter
switch) to ABS
Control Module
(w/EDL) -J104-
Ignition
switched
on 10.0 - 14.5 V
Electrical Wiring
Diagrams,
Troubleshooting &
Component
Locations binder - Check wiring using
wiring diagram
4 47 + 41 Function of brake
light switch -F- Ignition
switched
off
Brake
pedal not
depressed
0.0 - 0.5 V - Check brake light
switch -F- and read
measured value
block Page 01-
240 , Display group
number 003

- Depress
brake pedal Approx.
battery
voltage
Repair Manual,
Brake System,
Repair Group 46;
Brake pedal -
Assembly overview;
Adjusting brake light
switch
Electrical Wiring
Diagrams,
Troubleshooting &
Component
Locations binder - Adjusting brake
light switch
- Check wiring using
wiring diagram
Стр. 14из 38 Electrical check of Mark 60

Downloaded from www.Manualslib.com manuals search engine 01-306


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
9 33 + 34 Right front
ABS wheel
speed
sensor -
G45-
voltage
signal
Vehicle
raised
- Check installation of
right front ABS wheel
speed sensor -G45- and
rotor.


Ignition
switched off

- Rotate front
right wheel at
approx. 1
rev./sec. Min. 65 mV
alternating
voltage - Check whether right
front ABS wheel speed
sensor -G45- has been
interchanged and read
measured value block
Page 01
-240 , Display
group number 001
10 45 + 46 Left front
ABS wheel
speed
sensor -
G47-
voltage
signal Vehicle
raised
- Check installation of left
front ABS wheel speed
sensor -G47- and rotor.


Ignition
switched off

- Rotate front
left wheel at
approx. 1
rev./sec. Min. 65 mV
alternating
voltage - Check whether left front
ABS wheel speed sensor
-G47- has been
interchanged and read
measured value block
Page 01
-240 , display
group number 001
Стр. 19из 38 Electrical check of Mark 60

Downloaded from www.Manualslib.com manuals search engine 01-307


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

Downloaded from www.Manualslib.com manuals search engine 01-326


Definitions
These explanations refer only to this assembly
group: ABS On Board Diagnostic (OBD). These
definitions are not necessarily generally valid.

ABS
Anti-locking brake system. Further information
on the ABS can be found in the relevant self-
study programs.

Display group number Read measured
value block

ASR
Traction Control System

Data bus
Transportation of data. To do this the electrical
signals are brought into a certain format (BUS).
Further information can be found in Self-study
programs. Also called CAN Bus.

Data bus low (high)
The voltage used to transport the data is low
(high). Further information can be found in Self-
study programs.

Speed sensor
Sends speed signals to control module.
Стр. 1из 6 Definitions

Downloaded from www.Manualslib.com manuals search engine 01-329



Short to positive
Current flows incorrectly to a live component
without supplying a consumer.

Brake pressure release solenoid -F84-
The trip switch is installed in the brake booster
and is required by the control module to
recognize the braking desired by the driver.

Magnetic coil for brake pressure, in brake
booster, -N247-
The brake pressure solenoid is installed in the
brake booster and ensures that a pre-pressure
of 10 bar is available for the ABS/ESP pump.

Read measured value block
The control module can transfer a considerable
amount of test data. This test data delivers
information on the operational condition of the
system and/or sensors connected to it. In many
cases the transferred test data supports
troubleshooting and malfunction repair. The
test data has been summarized into single
display groups because all the information
cannot be evaluated at the same time. The
information can be selected via display group
numbers.

EBC
Engine braking control
Стр. 4из 6 Definitions