1998 VOLKSWAGEN JETTA warning

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The PRINT key is used for switching on the
printer (warning lamp in key comes on).

- Switch ignition on.

- Switch on printer with Print key (indicator lamp in
key lights up).

- Press key -1- for "Rapid data transfer" operating
mode.
Rapid data transfer HELP
Enter address word XX Indicated on display
- Press keys -0- and -3-; 03 inputs the address
word of the vehicle system to be tested "Brake
electronics".
Rapid data transfer Q
03 - Brake electronics Indicated on display
- Confirm input with Q key.
1J0 907 379 D ABS 20 IE CAN 0001
Coding 03604 WSC XXXXX
Display shows e.g.
Displayed is:
e.g. (1J0 907 379 D)
Allocation of control module see Parts catalog
Electrical Wiring Diagrams, Troubleshooting &
Component Locations binder
The control module identification number.
System designation (ABS 20 IE)
Data BUS present. (CAN)
Стр. 4из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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V.A.G 1551
print-out Possible cause
Repair
01312
Drive train data
bus faulty
1)


or:
ABS control module (w/EDL) -
J104- incorrectly coded

Engine control module
incorrectly coded
Repair group 01 for relevant
engine code - Check ABS control module
(w/EDL) -J104- coding Page 01
-
58
- Check engine control module
coding

Open circuit, short to positive or
Ground in the wiring - Check wiring and connections
using wiring diagram

- Perform electrical checks Page
01-102
Drive train data
bus faulty
1)

Sporadic
Ignition/starter switch turned
too slowly - Erase DTC memory Page 01-56
- No further measures required
- Inform customer
1) The DTC "Drive train data bus" will not cause the ABS warning light -K47- or warning light for
brake system -K118- to light up. The ABS function is retained over the complete range.
Стр. 32из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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Warning!
DTC memor
y was not interrogated.
Indicated on display
Note:
Adhere exactly to test sequence: First
check DTC memory, then erase
2. Ending output
- Press keys -0- and -6-, to end output.
Rapid data transfer Q
06 - End output Indicated on display
- Confirm input with Q key.
Rapid data transfer HELP
Select function XX Indicated on display
ABS warning light -K47- and warning light
for brake system -K118- must go out after
approx. 2 seconds. - Switch ignition off.
- Disconnect V.A.G 1551 Scan Tool at
Data Link Connector (DLC).
- Switch ignition on.
Стр. 37из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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ABS control module, coding

All functions which could previously be
performed with V.A.G 1551 can also be
performed with the tester VAS 5051.

Warning light for ABS -K47- and warning light
for brake system -K118- flash when control
module is coded with 00000. An entry is not set
in the DTC memory.

The ABS control module (w/EDL) -J104- must
be recoded if the vehicle relevant coding is not
displayed or the control module has been
replaced.
Coding is only possible after the workshop code
(WSC) has been entered into the V.A.G 1551
Scan Tool.

Test sequence

- Connect V.A.G 1551 Scan Tool and select
(address word 03) "Brake electronics" with
ignition switched on; Page 01
-23

- Establish which type of ABS hydraulic control
module is installed Page 01
-4 .

- Establish engine code.
Стр. 38из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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- Connect V.A.G 1551 Scan Tool.

- Switch ignition on.

- Press key -1- for "Rapid data transfer" operating
mode.

- Select brake electronics (address word 03);
Page 01
-23
Rapid data transfer Q
03 - Brake electronics Indicated on display
Note:
During the next work steps the ABS warning light -
K47- flashes. - Confirm entry with key Q.
- Read off control module version in V.A.G 1551
display.
-
Press key.
Стр. 56из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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-
Press key.
The ABS warning light -K47- goes out.
Function is unknown or
cannot be carried out at the moment
Indicated on display
The Output Diagnostic Test Mode (DTM) is
completed
-
Press key.
Rapid data transfer HELP
Select function XX Indicated on display
Note:
There is a malfunction in the system if
the ABS warning light -K47- does not go
out.
Adhere exactly to test sequence: First
check Diagnostic Trouble Code (DTC)
memory, then erase.
- End output (Function 06) Page 01
-56 .
Стр. 70из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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Contact
Wiring connection to component ...
13
Longitudinal acceleration sensor -G251-(all-wheel drive vehicles with Haldex
coupling only)
14
Coding bridge to contact 3
15
Longitudinal acceleration sensor -G251-(four-wheel drive vehicles with Haldex
coupling only)
15
ESP Control lamp -K155- activation (vehicles with ABS/EDL/ASR only)
16
ABS warning light -K47- activation
17
Longitudinal acceleration sensor -G251-(four-wheel drive vehicles with Haldex
coupling only)
18
Brake light switch -F-
19
Right front ABS wheel speed sensor -G45-
20
Right front ABS wheel speed sensor -G45-
21
Vehicles with navigation system only
22
Right rear ABS wheel speed sensor -G44-
23
Right rear ABS wheel speed sensor -G44-
24
Ground point left in engine compartment and Ground connection in engine
compartment wiring harness
25
Voltage supply from battery +
Стр. 7из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

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To test component

Voltage signal of right rear ABS wheel speed sensor -G44-
- Perform test step 11
Voltage signal of rear left ABS wheel speed sensor -G46-
- Perform test step 12
Coding bridge
- Perform test step 13
Voltage supply for V.A.G 1551, T16 connector
- Perform test step 14
Resistance of K wire for On Board Diagnostic (OBD), T16 connector
- Perform test step 15
Function of ABS warning light -K47-
- Perform test step 16
Function of warning light for brake system -K118-
- Perform test step 17
Function of ABS hydraulic pump -V64-
- Perform test step 18
Check of data bus wiring
- Perform test step 19
Activation of longitudinal acceleration sensor -G251-
1)
- Perform test step 20
Function of ESP Control lamp -K155-
- Perform test step 21
1) All-wheel drive vehicles with Haldex coupling only.
Стр. 9из 31 ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check