Volkswagen Golf / Golf GTI / Jetta. Manual — part 356

01-108

Contact

Wiring connection to component ...

13

Longitudinal acceleration sensor -G251-(all-wheel drive vehicles with

Haldex coupling only)

14

Coding bridge to contact 3

15

Longitudinal acceleration sensor -G251-(four-wheel drive vehicles with

Haldex coupling only)

15

ESP Control lamp -K155- activation (vehicles with ABS/EDL/ASR only)

16

ABS warning light -K47- activation

17

Longitudinal acceleration sensor -G251-(four-wheel drive vehicles with

Haldex coupling only)

18

Brake light switch -F-

19

Right front ABS wheel speed sensor -G45-

20

Right front ABS wheel speed sensor -G45-

21

Vehicles with navigation system only

22

Right rear ABS wheel speed sensor -G44-

23

Right rear ABS wheel speed sensor -G44-

24

Ground point left in engine compartment and Ground connection in

engine compartment wiring harness

25

Voltage supply from battery +

ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

01-109

Test step overview

To test component

Voltage supply for ABS hydraulic pump -V64- to ABS control
module (w/EDL) -J104-

- Perform test
step 1

Voltage supply for valves in ABS hydraulic unit -N55- to ABS
control module (w/EDL) -J104-

- Perform test
step 2

Voltage supply (terminal X) on ABS control module (w/EDL) -J104-

- Perform test
step 3

Function of brake light switch -F-

- Perform test
step 4

Resistance of right front ABS wheel speed sensor -G45-

- Perform test
step 5

Resistance of left front ABS wheel speed sensor -G47-

- Perform test
step 6

Resistance of right rear ABS wheel speed sensor -G44-

- Perform test
step 7

Resistance of rear left ABS wheel speed sensor -G46-

- Perform test
step 8

Voltage signal of right front ABS wheel speed sensor -G45-

- Perform test
step 9

Voltage signal of left front ABS wheel speed sensor -G47-

- Perform test
step 10

ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

01-110

To test component

Voltage signal of right rear ABS wheel speed sensor -G44-

- Perform test step
11

Voltage signal of rear left ABS wheel speed sensor -G46-

- Perform test step
12

Coding bridge

- Perform test step
13

Voltage supply for V.A.G 1551, T16 connector

- Perform test step
14

Resistance of K wire for On Board Diagnostic (OBD), T16
connector

- Perform test step
15

Function of ABS warning light -K47-

- Perform test step
16

Function of warning light for brake system -K118-

- Perform test step
17

Function of ABS hydraulic pump -V64-

- Perform test step
18

Check of data bus wiring

- Perform test step
19

Activation of longitudinal acceleration sensor -G251-

1)

- Perform test step
20

Function of ESP Control lamp -K155-

- Perform test step
21

1)

All-wheel drive vehicles with Haldex coupling only.

ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check

01-111

Test table

Notes on test table

The socket designations of adapter V.A.G 1598/21 are identical to the control

module -J104 contact designations in wiring diagram.

Electrical Wiring Diagrams, Troubleshooting & Component Locations binder

If the readings obtained deviate from the specifications, carry out repair measure in

the right-hand part of the table.

Electrical Wiring Diagrams, Troubleshooting & Component Locations binder

Continuity checks with adapter set V.A.G 1594 A (bridging).

If the measured figures only deviate slightly from the specifications, clean sockets

and connectors of the testers and adapter cables (with contact spray G 000 700 04 )
and repeat check. Before replacing components, check wiring and connections and
also, particularly for specifications of less than 10

, repeat resistance check on the

component.

ABS, ABS/EDL and ABS/EDL/ASR ITT Mark 20 IE, electrical check