check engine VOLKSWAGEN JETTA 1998 Service Manual

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Switch to measuring range:
Resistance measurement (200 /20 M )
Test
step V.A.G
1598
sockets Item
tested Test conditions
- Additional operationsSpecification
Measures for
deviations from
specification
19 - Wiring for
sender 1
for brake
booster -
G201-
Ignition switched off

Measuring range set
to 200
- Disconnect connection
from sender 1 for brake
booster -G201-
- Disconnect multi-pin
connection T47 from
ABS control module
(w/EDL) -J104-
- Connect test box
V.A.G 1598/36

- Check wiring for open
circuit between sender
1 for brake booster -
G201- multi-pin
connector and ABS
control module (w/EDL)
-J104- multi-pin
connector Max. 1.5
Electrical Wiring
Diagrams,
Troubleshooting &
Component
Locations binder - Check wiring
using wiring
diagram
Test step 19: Continued on next
page.
Стр. 32из 38 Electrical check of Mark 60

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Continuation of test step 19
Test
step V.A.G
1598
sockets Item
tested
Test conditions
- Additional
operations Specification
Measures for deviations
from specification

- Set measuring
range to 20 M
- Remove fuse S9

- Check wiring for
short circuit to
positive or Ground




Electrical Wiring
Diagrams,
Troubleshooting &
Component Locations
binder - Check wiring using
wiring diagram
Стр. 33из 38 Electrical check of Mark 60

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Switch to measuring range:
Resistance measurement (200 /20 M )
Test
step V.A.G
1598
sockets Item
tested Test conditions
- Additional operationsSpecification
Measures for
deviations from
specification
20 11 or 15 Data
bus
wiring
Ignition switched
off

Measuring set
range to 200
- Disconnect multi-pin
connection from a
control module which
is connected via data
bus wiring:
- Connect test box
V.A.G 1598/36

- Check data bus
wiring for open circuit Max. 1.5
Electrical Wiring
Diagrams,
Troubleshooting &
Component Locations
binder - Check wiring using
wiring diagram
Test step 20: Continued on next page
Стр. 34из 38 Electrical check of Mark 60

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Continuation of test step 20

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

- Set measuring
range to 20 M
- Remove fuse S9

- Check wiring for
short circuit to
positive or Ground




Electrical Wiring
Diagrams,
Troubleshooting &
Component Locations
binder - Check wiring using
wiring diagram
Стр. 35из 38 Electrical check of Mark 60

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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
21 - Voltage
supply for
V.A.G 1551,
connector
T16
1)
Ignition
switched off
- Connect hand
multimeter V.A.G
1526 to connector
T16
1) using adapter
set V.A.G 1594 10.0 -14.5 V

Electrical Wiring
Diagrams,
Troubleshooting &
Component
Locations binder - Check wiring using
wiring diagram
1) Diagnosis connector contact assignment Page 01-292
Стр. 36из 38 Electrical check of Mark 60

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Switch to measuring range:
Resistance measurement 200
Test
step V.A.G
1598
sockets Item tested Test conditions
- Additional
operations Specification
Measures for
deviations from
specification
22 - Resistance
of K wire for
V.A.G 1551,
connector
T16
1)
Ignition switched
off
- Disconnect multi-pin
connector from ABS
control module
(w/EDL) -J104
- Connect test box
V.A.G 1598/36
- Connect hand
multimeter V.A.G
1526 to contacts
T16/7
1) and T47/2 of
multi-pin connector of
ABS control module
(w/EDL) -J104- using
cables from adapter
set V.A.G 1594 Max. 1.5
Electrical Wiring
Diagrams,
Troubleshooting &
Component
Locations binder - Check wiring
using wiring
diagram
1) Diagnosis connector contact assignment Page 01-292
Стр. 37из 38 Electrical check of Mark 60

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Switch to measuring range:
Resistance measurement (200 )
Test
step V.A.G
1598
sockets Item tested Test
conditions
- Additional
operations Specification
Measures for
deviations from
specification
23 14 + 38 Coding bridge for
ABS and
ABS/EDL/ASR
front wheel drive
Ignition
switched
off 0.0 -1.0
12 + 38 Coding bridge for
ABS/EDL/ASR/ESP
front wheel drive
12 + 9 Coding bridge for
ABS/EDL/ASR/ESP
4MOTION

Electrical Wiring
Diagrams,
Troubleshooting &
Component
Locations binder - Check wiring
using wiring
diagram
Стр. 38из 38 Electrical check of Mark 60

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EBD
Electronic brake pressure distribution

EDL
Electronic differential lock

On Board Diagnostic (OBD)
The capability of the control module:

Recognize Diagnostic Trouble Codes
(DTCs)

React to DTCs

Store DTCs
and make them available in the Measured
value block. Further information on this can be
found in Self-study programs and test unit
instruction manual.

Performing On Board Diagnostic (OBD)
Connecting the Scan Tool to be able to check
the DTC memory. Further information on this
can be found in Self-study programs and test
unit instruction manual.

Performing electrical check
A targeted check of the electronic components
by performing certain measurements.
Стр. 2из 6 Definitions