Volkswagen Golf / Golf GTI / Jetta. Manual — part 410

45-30

ABS wheel speed sensor wiring to
rear axle, removing and installing

Required special tools

Removing

Repair Manual, Body Interior,

Repair Group 70

VAS 1978 Wirng harness repair

set

- Obtain radio code on vehicles

with coded radio.

- Disconnect battery

- Disconnect wheel speed sensor

wiring connector.

- Remove rear interior side panel

trim.

- Strip insulation (arrow) from

shrink connection.

- Cut speed sensor wiring in front

of spliced connection with
stripping pliers from VAS 1978
wiring repair kit and remove faulty
wiring.

ABS system components for front axle, removing and installing

45-31

- Strip insulation at wiring end by

15 mm (5/8 in.) using stripping
pliers from repair kit and fold over
stripped wire portion.

- Install new speed sensor wiring.

- Connect wheel speed sensor to

speed sensor wiring.

Note:

Do not twist wires in the wheel well.

- Secure wheel speed sensor wire

(arrows).

- Cut 2-pin connector at new speed

sensor wire (if installed) using
stripping pliers from repair kit.

- Strip 15 mm (5/8 in.) insulation off

wire end and fold over stripped
wire.

- Connect wheel speed sensor wire

using correct connector from
wiring repair kit VAS 1978.

ABS system components for front axle, removing and installing

45-32

Anti-lock brake system (ABS)
Mark 60

Only the following versions of the ABS Mark

60 are installed in this vehicle:

ABS

ABS/EDL with electronic differential lock

ABS/EDL/ASR with electronic differential lock

and traction control system

ABS/EDL/ASR/ESP with electronic stabilization

program

Anti-lock brake system (ABS) Mark 60

45-33

General information on this
ABS, ABS/EDL

Application of ABS in a left-hand

drive vehicle.

For vehicles from my 02.02 the
mechanical brake assist is installed.
It's integrated in the brake booster
for the use within the system as
special equipment. This can be
recognized by the replacement part
number.

Repairing the mechanical brake
assist is not possible. The brake
booster must be replaced complete.

Function test of brake assist in brake
booster

Page 47-57

The ABS brake system is divided
diagonally. The brake booster is a
pneumatic type and the vacuum is
provided by brake booster.

Vehicles with Mark 60 ABS do not
have a mechanical brake pressure
regulator. A specially matched
software in the control module
controls the rear axle brake pressure
regulation.

1 - Brake booster

2 - Hydraulic unit

3 - Control module, 47-pin (screwed
to hydraulic unit). Two 4.8 mm wide
contacts are located at both ends of
the connection.

Anti-lock brake system (ABS) Mark 60