Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 994

Troubleshooting
The mobile online services system is capable of self-diagnosis

(OBD).
Fault finding is performed via

Guided Fault Finding

on the

Vehicle Diagnostic Tester .
When there are concerns about the function, it necessary to be

familiar with the Mobile Online Services functions.
For additional information. Refer to the Owner's Manual and

⇒ Wiring diagrams, Troubleshooting & Component locations.

10.2

Component Location Overview - Mobile Online Services

Note

The component location is shown for the sedan. The component location for the wagon is identical.

1 - Control Module for Emer‐

gency Call Module and Com‐

munication Unit - J949-

❑ Behind the Instrument

Cluster - KX2-

❑ Removing and instal‐

ling. Refer to

⇒ “10.3 Control Module

for Emergency Call

Module and Communi‐

cation Unit J949 , Re‐

moving and Installing”,

page 66

.

❑ Connector assignment.

Refer to ⇒ Wiring dia‐

grams, Troubleshooting

& Component locations.

2 - Front Information Display

Control Head - J685-

❑ In the front center con‐

sole

❑ Removing and instal‐

ling. Refer to

⇒ “1.3 Infotainment Sys‐

tem Display, Removing

and Installing”,

page 12

.

3 - Telephone Microphone -

R38-

❑ in the Front Interior

Lamp - W1-

❑ Removing and instal‐

ling. Refer to

⇒ “5.4 Telephone Mi‐

crophone R38 , Remov‐

ing and Installing”, page

43

.

4 - Roof Antenna - RX5-

❑ Removing and installing. Refer to

⇒ “3.5 Roof Antenna, Removing and Installing”, page 35

.

5 - GSM Antenna 2 - R267-

❑ Behind the rear bumper trim panel on the left side

❑ Remove and install like the Vehicle GPS Antenna 2 - R260- . Refer to

⇒ “3.6.2 Vehicle GPS Antenna 2 R260 , Removing and Installing, GSM”, page 37

.

6 - Information Electronics Control Module 1 - J794-

❑ Installed in the glove compartment
❑ Connector assignment. Refer to ⇒ Wiring diagrams, Troubleshooting & Component locations.
❑ Removing and installing. Refer to

⇒ “1.4 Information Electronics Control Module 1 J794 , Removing and Installing”, page 13

.

7 - Instrument Cluster - KX2-

❑ Removing and installing. Refer to ⇒ Electrical Equipment; Rep. Gr. 90 ; Instrument Cluster; Instrument

Cluster - KX2- , Removing and Installing .

10.3

Control Module for Emergency Call

Module and Communication Unit -

J949- , Removing and Installing

If the control module is replaced, select the

Replacement

func‐

tion for the appropriate control module in

Guided Fault Find-

ing

using the Vehicle Diagnostic Tester .

Removing
– Turn off the ignition and all electrical equipment.
– Remove the ignition key, if equipped.
– Remove the Instrument Cluster - KX2- . Refer to ⇒ Electrical

Equipment; Rep. Gr. 90 ; Instrument Cluster; Instrument Clus‐

ter - KX2- ; Removing and Installing .

– Disconnect the connectors -1- and -2-.
– Press the catches upward opposite of the -A arrows- and slide

the Control Module for Emergency Call Module and Commu‐

nication Unit - J949- -3- out toward the rear -arrow B-.

Installing
Install in reverse order of removal.

11

Special Tools

Special tools and workshop equipment required
♦ Radio Removal Tool - T10057-

♦ Lever - Fuel Line - T10468-

♦ Torque Wrench 1783 - 2-10Nm - VAG1783-

♦ Fiber-Optic Repair Set - Connector Protective Caps -

VAS6223/9-

♦ Torque Screwdriver - VAS6494-

♦ Door Trim Pliers - 3392-

♦ Trim Removal Wedge - 3409-