1998 VOLKSWAGEN JETTA lock

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V.A.G 1551 print-
out Possible cause
Repair
01423
Sensor for
transverse
acceleration -G200-
Implausible signal
1)
- Read measured value block
Page 01
-240 Display group number
004

Installation of sensor for
transverse acceleration -
G200- is not OK. - Check installation of sensor for
transverse acceleration -G200-


Open circuit, short to
positive or Ground in the
wiring - Check wiring and connections using
wiring diagram
- Perform electrical check Page
01-288

Sensor for transverse
acceleration -G200- faulty
Repair Manual, Brake System,
Repair Group 45; Removing and
installing parts of ESP system - Replace sensor for transverse
acceleration-G200-

- Perform a zero compensation:


Basic setting was not
correctly performed in the
past - Initiate basic setting Page 01-264
Display group number 063
1) For ABS/EDL/ASR/ESP and ABS/EDL/ASR/ESP 4MOTION
Стр. 65из 129 On Board Diagnostic (OBD), performing

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V.A.G 1551 print-
out Possible cause
Repair
01435
Sender 1 for
brake booster -
G201-
Implausible
signal
1)
- Read measured value block Page 01
-
240 Display group number 005
Open circuit, short to
positive or ground in
the wiring - Check wiring and connections using wiring
diagram
- Perform electrical check Page 01
-288
Brake light switch
improperly adjusted
Brake light switch
faulty Repair Manual, Brake System, Repair Group 46; Brake pedal - Assembly overview;
Adjusting brake light switch - Adjust brake light switch
Sender 1 for brake
booster-G201- faulty
Repair Manual, Brake System, Repair
Group 45; Removing and installing parts of
ESP system - Replace sender 1 for brake booster -G201-
:
- Perform a zero compensation:
- Initiate basic setting Page 01
-264
Display group number 066
1) For ABS/EDL/ASR/ESP and ABS/EDL/ASR/ESP 4MOTION
Стр. 67из 129 On Board Diagnostic (OBD), performing

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V.A.G 1551 print-
out Possible cause
Repair
01542
Sender for rotation
rate -G202-
Implausible signal
1)
- Read measured value block
Page 01
-240 Display group number
004
Installation of sender for
rotation rate -G202- is not
OK. - Check installation of sender for
rotation rate -G202-

Open circuit, short to positive
or Ground in the wiring - Check wiring and connections using
wiring diagram
- Perform electrical check Page
01-288
Sender for rotation rate -
G202- faulty
Repair Manual, Brake System,
Repair Group 45 - Replace sender for rotation rate -
G202-
1) For ABS/EDL/ASR/ESP and ABS/EDL/ASR/ESP 4MOTION
Стр. 70из 129 On Board Diagnostic (OBD), performing

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Measured value block, reading

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

Safety precautions

WARNING!

If the use of test and information devices
during a test drive is necessary, observe the
following:

You must always secure testing and
measuring equipment on the rear seat.

When vehicle is being driven, a second
technician must operate this equipment.
Стр. 82из 129 On Board Diagnostic (OBD), performing

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- 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
Select function XX Indicated on display:
- Press keys 0 and 8. (The function "Read
measured value block" is initiated with 08.)
Rapid data transfer Q
08 - Read measured value block Indicated on display:
- Confirm entry with key Q.
Read measured value block
Enter displa
y group number XXX
Indicated on display:
- Enter display group number. List of selectable
display group numbers Page 01
-242 .
Стр. 83из 129 On Board Diagnostic (OBD), performing

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Test sequence and test tables with
measured values

Checking speed sensor allocation

Display group number 001

- Press keys 0, 0 and 1.

- Confirm entry with key Q.
Read measured value block
1
1 2 3 4
- There are always 4 display zones -
arrows- in the measured value block.
Decoding the individual values in display
zones 1 to 4 can be read-off from the
following tables.
Read measured value block 1
0 km/h 0 km/h 0 km/h 0 km/h
Indicated on display: (vehicle stationary)
Press C key for the next display group
number entry.
If the key is pressed, keys 0 and 8 for
work sequence "Read measured value
block" must be pressed again afterwards to
regain entry.
Стр. 87из 129 On Board Diagnostic (OBD), performing

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Note:
For display group number 001 remember:
The actual wheel speeds are displayed. They serve to check the speed sensor allocation to the
wheel. (The vehicle must be raised and the wheel must be rotated by hand by a 2nd mechanic).
Read measured value block
1 Display group number: 001
0 km/h 4 km/h 0 km/h 0 km/h
Indicated on display: (Example)

Wheel speed at right rear speed sensor
(0...255 km/h)

Wheel speed at left rear speed sensor

(0...255 km/h)

Wheel speed at right front speed sensor
(0...255 km/h)

Wheel speed at left front speed sensor

(0...255 km/h)
Стр. 88из 129 On Board Diagnostic (OBD), performing

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Checking speed sensor

Display group number 002

- Press keys 0, 0 and 2.

- Confirm entry with key Q.
Read measured value block
2
1 2 3 4
- There are always 4 display zones -
arrows- in the measured value block.
Decoding the individual values in display
zones 1 to 4 can be read-off from the
following tables.
Read measured value block
2
255 km/h 255 km/h 255 km/h 255 km/h
Indicated on display: (vehicle stationary)
Press C key for the next display group
number entry.
If the key is pressed, keys 0 and 8 for
work sequence "Read measured value
block" must be pressed again afterwards to
regain entry.
Стр. 89из 129 On Board Diagnostic (OBD), performing