Land Rover Defender: Information and Entertainment System
Land Rover Defender 2020-2025 Service Manual / Electrical / Information and Entertainment System
- Navigation System - Diagnosis and Testing
- Antenna
- Audio System
- Mobile Phone
- Navigation System - Description and Operation
- Speakers
- Telematics
- Voice Control
- Navigation System Map Updates - All Markets Excluding China, Japan and Korea
- Speakers
- Telematics
- Audio Amplifier Module
- Front Infotainment Control Module
- Interactive Display Module A
- Roof Pod
- Telematics 4G Antenna
- Sota 4G Antenna
- AM/FM Antenna Amplifier
- DAB3 Antenna Amplifier - 110
- DAB3 Antenna Amplifier - 90
- FM2 and DAB Antenna Amplifier
- GNSS Signal Splitter Assembly
- High Mounted Stop Lamp Filter
- Bluetooth Antenna - Left Hand Drive
- Bluetooth Antenna - Right Hand Drive
- Instrument Panel Speaker
- Front Door Bass Speaker
- Front Door Mid-Range Speaker
- Front Door Tweeter Speaker
- Rear Door Bass Speaker - 110
- Rear Door Tweeter Speaker - 110
- Rear Bass Speaker - 90
- Rear Tweeter Speaker - 90
- Subwoofer
- Front Portable Media Interface Panel
- Steering Wheel Switch
- Loadspace Speaker
- Telematic Control Unit Module
- WI-FI Antenna - Left Hand Drive
- WIFI Antenna - Right Hand Drive
- Telematics Control Module Battery Pack
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Navigation System - Diagnosis and Testing
DIAGNOSIS AND TESTING
PRINCIPLES OF OPERATION
For a detailed description of the Navigation System, refer to the relevant
Description and Operation section in the
workshop manual.
INSPECTION AND VERIF
Antenna
DESCRIPTION AND OPERATION
COMPONENT LOCATION
COMPONENT LOCATION - 1 OF 2
NOTE:
Right Hand Drive (RHD) vehicle is shown, Left Hand Drive (LHD) vehicle is
similar.
Bluetooth/WiFi antenna
WiFi anten
SEE MORE:
Tire Pressure Sensor
REMOVAL AND INSTALLATION
GENERAL EQUIPMENT
PART(S)
CAUTIONS:
Take extra care not to damage the sensor during the removal and
refitting of the tire.
If a new sensor is installed, make sure that the sensor type and
frequency is the same as the sensor that
has been removed. Failure to follow
Quiescent Drain
DESCRIPTION AND OPERATION
VEHICLE QUIESCENT CURRENT TEST
If a customer complains of a startup battery that discharges continuously or
when left for a prolonged period of time, it
is recommended that a quiescent drain test is done as described below.
When the vehicle is armed, the effect of the sec
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