Volkswagen Golf / Golf GTI / Jetta. Manual — part 1193

91-76

Telematics

General Information

Telematics is an in-vehicle communication

system that uses cellular and Global
Positioning System (GPS) technologies to
provide the customer with safety, security
and convenience services.

GPS is a "constellation" of 24 satellites that

orbit the earth and constantly broadcast
radio signals. The Telematics Control
Module receives GPS data, decodes it, and
transmits the vehicle's location to the service
provider's call center via the national cellular
network.

Telematics services for Volkswagen

customers are provided by OnStar

via a

dedicated call center. Service plans may
provide route directions and concierge
services as well as emergency or vehicle
repair services. For details

Volkswagen

Telematics by OnStar

Owner's Manual.

Utilization of available Telematics

services/features take place via customer's
voice control

Volkswagen Telematics by

OnStar

Owner's Manual.

Upon customer request, the Volkswagen

Telematics by OnStar

call center can

remotely perform or activate the following
vehicle functions:

Lock vehicle

Unlock vehicle

Activate Hazard Lights

Activate horn

Telematics

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During events where the Airbag Control

Module processes a crash signal, the vehicle
hazard lights are activated and the doors are
unlocked via the respective door control
modules. In addition, the telematics system
automatically places an emergency call to
the OnStar

call center.

Telematics hardware includes the driver

operated telematics control head (which
contains the OnStar

control buttons and

telematics indicator lamp), microphone, roof
mounted GPS/Cellular antenna and
Telematics Control Module (with supporting
software) and related wiring.

All telematics components are factory

installed/integrated into the vehicle electrical
system.

Telematics system/component overview

Page 91-79

.

Before troubleshooting or servicing,

technicians must be familiar with all
telematics functions, operating specifics and
the particular service plan which the
customer subscribes to.

Refer to "Volkswagen Telematics by OnStar

" Self Study Program (SSP) and

"Volkswagen Telematics by OnStar

Owner's Manual and/or OnStar

"Quick

Reference Guide" to become familiar with
applicable features and functions.

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On Board Diagnostic (OBD), function

The telematics system has extensive On

Board Diagnostic (OBD) capabilities.

The Telematics/Telephone Control Module

has a Diagnostic Trouble Code (DTC)
memory. If a malfunction occurs in one of the
components or wires which is monitored by
the system, a record of the type of
malfunction is stored in DTC memory. OBD
program functions are performed using VAS
5051 Vehicle Diagnostic Testing and
Information System in mode "Guided Fault
Finding".

Telematics

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Telematic
system,
component
overview

1

-

Antenna -
R11-,
Antenna
Amplifier -
R24- and
Antenna
for
Navigation
System
(GPS) -
R50-

On

roof,
rear

Jetta

Wagon,
Golf &
GTI,
removing
and
installing,

Page

91-49

.

Jetta

sedan,
removing
and
installing

Page

91-53

.

2 - Dual

Horn
Auxiliary
Relay -
J733-

On 13-
position
auxiliary
relay
panel,
above

Telematics

13/2/2005