Volkswagen Golf / Golf GTI / Jetta. Manual — part 1058

01-140

Diagnostic Trouble Code (DTC) memory,
checking (function 02)

Note:

DTCs stored in memory along with
corresponding malfunction descriptions can only
be displayed by initiating the On Board
Diagnostic program and checking DTC memory
(function 02).

- Connect VAG 1551 Scan Tool, select operating

mode 1 "Rapid data transfer", switch on ignition
and enter address word 19, "Gateway".

- Press -Q- button to confirm input.

- Press

button until "Select function" appears

in display.

- Switch on printer with the PRINT button

(indicator lamp in button lights up).

Rapid data transfer

HELP

Select function XX

Indicated on display:

- Press buttons -0- and -2- to select "Check DTC

memory" function 02.

Rapid data transfer

Q

02 - Check DTC memory

Indicated on display:

- Press -Q- button to confirm input.

X DTC's recognized!

The number of stored DTCs appears in the

display.

Stored DTCs are displayed and printed out one
after another.

Data Bus On Board Diagnostic Interface -J533- ('Gateway') m.y. 2000 through m.y.

13/2/2005

01-141

- Check print-out against DTC table and repair all

malfunctions as necessary

Page 01-142

.

No DTC recognized!

If "No DTC recognized" is displayed the program

will return to the initial position after pressing

button.

Rapid data transfer

HELP

Select function XX

Indicated on display:

If something else is displayed:

Scan tool operating instructions

- End Output (function 06)

Page 01-148

.

- Switch ignition off

- Disconnect VAG 1551 from Data Link Connector

(DLC).

Data Bus On Board Diagnostic Interface -J533- ('Gateway') m.y. 2000 through m.y.

13/2/2005

01-142

Diagnostic Trouble Code (DTC) table

Notes:

The following table lists all malfunctions, with the corresponding 5 digit code

numbers, that can be recognized by the Data Bus On Board Diagnostic Interface -
J533- and printed out by the VAG 1551 Scan Tool (ST).

If malfunctions do not occur regularly, these are displayed as occurring sporadically

("SP").

DTC codes appear only on print-out.

Before replacing components, check the wiring and connections to these

components as well as ground connections, according to wiring diagram.

When repair has been carried out, the Diagnostic Trouble Code (DTC) memory must

always be erased and checked again with VAG 1551 Scan Tool (ST).

If there is a specific complaint and no malfunctions are recognized after checking

Diagnostic Trouble Code (DTC) memory, carry out "Read measuring value block"

Page 01-151

.

VAG 1551
print out

Possible cause

Possible

effects

Corrective action

01044

Control
Module
incorrectly
coded

A control module

connected to the
power-train CAN Bus
(Data Bus) is incorrectly
coded

A control module

connected to the
power-train CAN Bus
(Data Bus) is
malfunctioning

Functions of
systems
connected to
CAN-Bus not
OK

- Check DTC memory of
all control modules
connected to CAN-Bus
and repair malfunctions
if necessary

- Check control module
coding, correct if
necessary

- Replace control
module if necessary

Data Bus On Board Diagnostic Interface -J533- ('Gateway') m.y. 2000 through m.y.

13/2/2005

01-143

VAG 1551 print
out

Possible cause

Possible effects

Corrective action

01312

Data Bus Drive

malfunctioning

Malfunction in

data wires

CAN Bus in "bus-

off" condition

Functions of

systems
connected to
CAN-Bus not
OK

- Read measuring
value block

Page

01-151

- Check control
module coding

- Check DTC memory
of all control modules
connected to CAN Bus
and repair
malfunctions if
necessary

- Check for open or
short circuit in CAN
Bus wiring using
wiring diagram.

01314

Engine Control
Module (ECM)

No
communication

Data reception

from Engine
Control Module
(ECM) via CAN
Bus is not OK.

Functions of

systems
connected to
CAN-Bus not
OK

- Read measuring
value block

Page

01-151

- Check DTC memory
of Engine Control
Module (ECM) and
repair malfunction if
necessary

- Check for open or
short circuit in CAN
Bus wiring using
wiring diagram.

Data Bus On Board Diagnostic Interface -J533- ('Gateway') m.y. 2000 through m.y.

13/2/2005