Volkswagen Golf / Golf GTI / Jetta. Manual — part 240

24-214

Special tools and equipment

Note:

All functions which could previously
be performed with VAG 1551/1552
can also be performed with the VAS
5051.

VAG 1551 Scan tool (or VAG

1552) with VAG 1551/3 adapter
cable

Additional signals, checking

24-215

Test requirements

The fuses must be OK.

The battery voltage must be at

least 11.5 V.

All electrical accessories, e.g.

lights and rear window defroster
must be switched off.

If the vehicle is equipped with air

conditioning, it must be turned
off.

Selector lever must be in

position "P" or "N" on vehicles
with an automatic transmission.

Additional signals, checking

24-216

Test sequence

- Connect VAG 1551 Scan tool (or VAG 1552)

and select engine electronics control module
with "Address word" 01. Engine must be running
at idle speed: ((VAG 1551 and Motronic Engine
Control Module (ECM) -J220-, connecting and
selecting

Page 01-12

).

Rapid data transfer

HELP

Select function XX

Indicated on display:

- Press buttons -0- and -8- for function "Read

measured value (data) block" and confirm entry
with -Q- button.

Read measured value block

Input display group number XXX

Indicated on display:

- Press buttons -0-, -5- and -6- for "Display group

number 56" and confirm entry with -Q- button.

Read measured value block 56

1

2

3

4

Indicated on display: (1 to 4

display zones)

- Observe display in display zone 4 (4th digit from

left).

Specification: xxx0x "Neutral"

- Depress brake pedal and select driving range.

Observe figure displayed in display zone 4:

Specification: xxx1x "Driving range selected"

- Press

button.

Additional signals, checking

24-217

- Press buttons -0- and -6- for function "End

output" and confirm entry with -Q- button.

- Switch off ignition.

If the specifications are not obtained:

- Check CAN-bus matching resistor

Page 24-

223

.

- Check DTC memory, repair malfunctions if

necessary and then erase DTC memory

Page

01-23

.

- Read readiness code

Page 01-146

. If DTC

memory has been erased or Motronic Engine
Control Module (ECM) -J220- was disconnected
from battery positive (B+), readiness code must
be generated again

Page 01-149

.

Additional signals, checking