Volkswagen Golf / Golf GTI / Jetta. Manual — part 480

47-62

Check function of check valve -
A-.

Air must pass through in direction of
(arrow).

Valve must remain closed in opposite
direction.

Make sure that check valve is
installed correctly.

- Checking check valve -A-.

Brake booster/brake master cylinder for vehicles with ABS/EDL/ASR/ESP Mark...

47-63

Brake system vacuum pump -
V192-, vehicles up to my 05.02,
electrical check

Special tools and equipment

VAG 1526 B Hand multimeter

VAG. 1598/31 Adapter set

Requirements

Fuses 51 and 31 must be OK

(remove fuses from fuse holder to
check).

- Remove the 6 - pole contact.

Brake booster/brake master cylinder for vehicles with ABS/EDL/ASR/ESP Mark...

47-64

Multi-pin connector with
contact assignment

Note:

All contacts not listed are currently
not assigned and must never be
connected to other components!

Contact assignment of

connectors for voltage supply and
diagnosis.

Contact
1

= Ground

Contact
2

= Connection with

engine control module
(pin 22)

Contact
3

= Voltage supply from

ignition/starter switch
through fuse 31

Contact
4

= Not applicable

Contact
5

= Voltage supply from

Battery +through fuse
51

Contact
6

= Not applicable

Brake booster/brake master cylinder for vehicles with ABS/EDL/ASR/ESP Mark...

47-65

Contact

Wiring connection to component ...

1

Ground point

2

Connection with engine control module

3

Voltage supply from ignition/starter switch

4

Not applicable

5

Voltage supply from Battery +

6

Not applicable

Brake booster/brake master cylinder for vehicles with ABS/EDL/ASR/ESP Mark...