Land Rover Discovery: Diagnosis and Testing Navigation System
PRINCIPLES OF OPERATION
For a detailed description of the information and entertainment system and operation, refer to the relevant Diagnosis and Testing section of the workshop manual. REFER to: Audio System (415-01 Information and Entertainment System, Description and Operation), Navigation System Map Updates (415-00 Information and Entertainment System - General Information, Description and Operation), Navigation System (415-01 Information and Entertainment System, Description and Operation).
INSPECTION AND VERIFICATION
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
- If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
PRINCIPLES OF OPERATION
The information in this section is intended to help with basic diagnosis of the navigation system.
For a detailed description of the Navigation System, refer to the relevant Description and Operation section in the Workshop Manual.
READ NEXT:
Touch Screen(ts) and Navigation Diagnostics
Fault codes and diagnostics can be retrieved/achieved using the
manufacturer approved diagnostic system
Hard Key Test
The hard key test is used to check the operation of the hard switches.
If switch
Diagnosis and Testing Navigation System / Symptom chart
SYMPTOM:
Black screen (navigation and audio
screens do not display)
POSSIBLE CAUSE:
Temperature in
passenger
compartment too low
Condensation in
passenger
compartment
Electrical harnes
SEE MORE:
Headlamp Assembly (G1785269) / Removal and Installation
REMOVAL
CAUTION:
Protect the surrounding paintwork to avoid damage.
NOTES:
Removal steps in this procedure may contain installation details.
Right illustration shown, left is similar
WARNING:
Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
Refer to: Wheel and Ti
Front Suspension Wheel
Knuckle (G1778608) - Installation
Installation
All vehicles
NOTE:
This step is only required if previously removed.
Vehicles with dynamic suspension
Remove the special tool.
CAUTION:
Install a new retaining bolt and nut.
Renew Part: Wheel knuckle nut and bolt.
Torque:
Stage 1: 80 Nm
Stage 2: 180º
CAUTION:
Make sure the wi
