Volkswagen Golf / Golf GTI / Jetta. Manual — part 347

01-50

V.A.G 1551
print-out

Possible cause

Repair

01130

ABS
operation

Implausible
signal

1)

Electrical interference

from other sources (high
frequency radiation e.g.
non-insulated ignition
cable)

- Erase DTC memory

- Perform test drive at more than 20
km/h (13 mph)

- Check DTC memory again

Open circuit, short to

positive or Ground in the
wiring

- Check wiring and connections using
wiring diagram

- Perform electrical checks

Page 01-

102

If the malfunction occurs again:

ABS Control Module

(w/EDL) -J104- faulty

Repair Manual, Brake System, Repair

Group 45; Hydraulic unit, brake
booster/brake master cylinder -
Assembly overview; Removing and
installing control module and hydraulic
unit

- Replace ABS control module (w/EDL)
-J104-

1)

Type of DTC; this DTC is only recognized above 20 km/h (13 mph) (carry out test

drive).

ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

01-51

V.A.G 1551
print-out

Possible cause

Repair

01276

ABS
hydraulic
pump

-V64-

Signal
outside
tolerances

1)

ABS hydraulic

pump -V64-
connector to
control module
faulty

- Perform output Diagnostic Test Mode (DTM)

Page 01-74

Open circuit, short

to positive or
Ground in the
wiring

- Check wiring and connections using wiring
diagram

- Perform electrical checks

from

Page

01-102

ABS hydraulic

pump -V64- faulty

- If the ABS hydraulic pump -V64- runs free
while electrical check test step 18 performed

Page 01-102

, replace ABS control module

(w/EDL) -J104-

ABS control

module (w/EDL) -
J104- faulty

Repair Manual, Brake System, Repair

Group 45; Hydraulic unit, brake booster/brake
master cylinder - Assembly overview;
Removing and installing control module and
hydraulic unit

- Replace ABS control module (w/EDL) -
J104-

1)

Type of DTC; this DTC is only recognized above 20 km/h (13 mph) (carry out test

drive).

ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

01-52

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.

ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

01-53

V.A.G 1551 print-out Possible cause

Repair

01314

Engine control module

No communication

- Read measured value block

Page 01-61

display group

number 125

Open circuit, short to

positive or Ground in
data bus wiring

- Check wiring and connections
of data bus wiring using wiring
diagram

- Perform electrical checks

Page 01-102

01315

Transmission Control
Module (TCM)

1)

No communication

- Read measured value block

Page 01-61

display group

number 125

Open circuit, short to

positive or Ground in
data bus wiring

- Check wiring and connections
of data bus wiring using wiring
diagram

- Perform electrical checks

Page 01-102

1)

Vehicles with automatic transmission only.

ABS ITT Mk 20 IE On Board Diagnostic (OBD) program