check engine VOLKSWAGEN JETTA 1998 Service Manual

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1. Check DTC memory (Function 02)
2. Erase DTC memory (Function 05)
3. End output (Function 06)
4. Switch off ignition.
5. Switch on ignition.
6. Perform zero compensation again.

-
Press key.
Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press keys 0 and 6, this ends the output.
Rapid data transfer Q
06 - End output Indicated on display
ABS and ESP warning lights light up for
approx. 2 seconds.
Стр. 119из 129 On Board Diagnostic (OBD), performing

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Display group number 66: zero compensation
for Sender 1 for brake booster -G201-

Note:
All functions which could previously be
performed with V.A.G 1551 can now also be
carried out with the tester VAS 5051.

Brake pedal not depressed.

- Connect V.A.G 1551 scan tool and select
(address word 03) brake electronics control
module with ignition switched on; Page 01
-
163 .

- Check measured values with help of function 08
"Read measured value block" Page 01
-240 ,
Display group number 005.
First perform function 11 "Login procedure"
successfully using V.A.G 1551 scan tool
Page 01
-287
Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press keys 0 and 4. (The function "Initiating
basic setting" is selected with 04).
Стр. 120из 129 On Board Diagnostic (OBD), performing

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Rapid data transfer Q
04 - Basic settin
g
Indicated on display:
- Confirm entry with key Q.
Basic setting HELP
Enter dis
play group number XXX
Indicated on display:
- Press keys 0, 6 and 6
- Confirm entry with key Q.
ABS warning light flashes.
Basic setting 66 OFF <4-ON>
Compens. OK. - 0.85bar And then the display shows e.g.:
Function is unknown or cannot be
-
performed at moment
If this display appears the login procedure
has not been performed successfully.
- or:
Basic setting 66 OFF <4-ON>
Com
pens. not poss. 10.85bar
If this appears in the display the measured
values for the zero compensation are not
within the allowed tolerances.
- Check measured values with help of
function 08 "Read measured value block"
Page 01
-240 , Display group number
005.
Стр. 121из 129 On Board Diagnostic (OBD), performing

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1. Check DTC memory (Function 02)
2. Erase DTC memory (Function 05)
3. End output (Function 06)
4. Switch off ignition.
5. Switch on ignition.
6. Perform zero compensation again.

-
Press key.
Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press keys 0 and 6, this ends the output.
Rapid data transfer Q
06 - End output Indicated on display
ABS and ESP warning lights light up for
approx. 2 seconds.
Стр. 122из 129 On Board Diagnostic (OBD), performing

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Display group number 69: zero compensation
of longitudinal acceleration sensor -G251-

Note:
All functions which could previously be
performed with V.A.G 1551 can now also be
carried out with the tester VAS 5051.

Position vehicle on a flat level surface.

- Connect V.A.G 1551 scan tool and select
(address word 03) brake electronics control
module with ignition switched on; Page 01
-
163 .

- Check measured values with help of function 08
"Read measured value block" Page 01
-240 ,
Display group number 006.
First perform function 11 "Login procedure"
successfully using V.A.G 1551 scan tool
Page 01
-287
Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press keys 0 and 4. (The function "Initiating
basic setting" is selected with 04).
Стр. 123из 129 On Board Diagnostic (OBD), performing

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Rapid data transfer Q
04 - Basic settin
g
Indicated on display:
- Confirm entry with key Q.
Basic setting HELP
Enter dis
play group number XXX
Indicated on display:
- Press keys 0, 6 and 9
- Confirm entry with key Q.
ABS warning light flashes.
Basic setting 69 OFF <4-ON>
Compens. OK 0.3m/s2 Indicated on display:
Note:
After successfully completing the zero
compensation the values in display do not
go to 0.00 m/s2
Function is unknown or cannot be
-
performed at moment
If this display appears the login procedure
has not been performed successfully.
- or:
Basic setting 69 OFF <4-ON>
Compens. n. poss. 5.0m/s2 If this appears on display, the measured
values are not within the accepted tolerance
for zero compensation.
- Check measured values with help of
function 08 "Read measured value block"
Page 01
-240 , Display group number
006.
Стр. 124из 129 On Board Diagnostic (OBD), performing

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1. Check DTC memory (Function 02)
2. Erase DTC memory (Function 05)
3. End output (Function 06)
4. Switch off ignition.
5. Switch on ignition.
6. Perform zero compensation again.

-
Press key.
Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press keys 0 and 6, this ends the output.
Rapid data transfer Q
06 - End output Indicated on display
ABS and ESP warning lights light up for
approx. 2 seconds.
Стр. 125из 129 On Board Diagnostic (OBD), performing

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Display group number 93: activation of ESP
driving test
The ESP driving test is used to check the
plausibility of the signals from sensor for
transverse acceleration -G200-, sender for
rotation rate -G202- and sender 1 for brake
booster -G201-.
The ESP driving test should be performed each
time parts of the ESP system are removed or
replaced.

- Connect V.A.G 1551 scan tool and select
(address word 03) brake electronics control
module (address word 03) with ignition switched
on; Page 01
-163 .
Rapid data transfer HELP
Enter address word XX Indicated on display:
- Press keys 0 and 4. (The function "Initiating
basic setting" is selected with 04).
Rapid data transfer Q
04 - Basic settin
g
Indicated on display:
- Confirm entry with key Q.
Basic setting HELP
Enter displa
y group number XXX
Indicated on display:
- Press keys 0, 9 and 3
Стр. 126из 129 On Board Diagnostic (OBD), performing

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- Now perform test drive for maximum 50 seconds
at a speed of 15km/h...30km/h:

It must be driven so that no ABS, EDL, ASR or
ESP regulation is performed.

Make a turn with steering wheel turned at least
90 .
When the ABS warning lamp -K47- and ESP
warning lamp -K155- go out, the ESP driving
test has been successfully completed.

WARNING!

Always comply with road traffic regulations
and drive according to the traffic conditions.

Note:

If the ABS warning light -K47- does not go out,
then the ESP driving test has not been
performed correctly.

If the ABS warning light -K47- does not go out
and the ESP control lamp -K155- lights up
again, check DTC memory Page 01
-170 .
Стр. 128из 129 On Board Diagnostic (OBD), performing

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Electrical
check of
Mark 60
Special tools and
equipment

V.A.G 1598/36
Adapter

V.A.G 1594 A
Adapter set

V.A.G 1526 A
Hand multimeter

V.A.G 1921 Pliers

V.A.G 1598 A
Test box
Стр. 1из 38 Electrical check of Mark 60