Land Rover Discovery: Electrical Precautions
GENERAL
The following guidelines are intended to make sure the safety of the operator whilst preventing damage to the electrical and electronic components of this vehicle.
EQUIPMENT
Prior to commencing any test procedure on the vehicle, make sure that the relevant test equipment is working correctly and that any harness or connectors are in good condition. It is particularly important to check the condition of all plugs and leads of mains operated equipment.
POLARITY
Never reverse connect the vehicle battery and always make sure the correct polarity when connecting test equipment.
HIGH VOLTAGE CIRCUITS
Whenever disconnecting live ht circuits, always use insulated pliers and never allow the open end of the ht lead to contact other components, particularly ECU's.
VEHICLES INSTALLED WITH BI-XENON HEADLAMP BULBS
WARNING:
The following precautions must be observed as failure to comply may result in exposure to ultra-violet rays, severe electric shock, burns or risk of an explosion.
- Safety goggles and gloves must be worn.
- Make sure that headlamps are switched off before removing bulbs.
- Do not touch the glass portion of the bulb.
- On no account should headlamps be switched on with the bulb removed from the headlamp.
- Bulb testing may only be carried out with the bulb installed in the headlamp.
- Bulbs must be disposed of in accordance with the local authority byelaws.
CONNECTORS AND HARNESSES
The engine compartment of a vehicle is a particularly hostile environment for electrical components and connectors. Always observe the following:
- Make sure electrically related items are dry and oil free before disconnecting/connecting test equipment.
- Make sure that disconnected multiplugs and sensors are protected from any possible oil, coolant or other liquid contamination. Any such contamination could impair performance or lead to component failure.
- Never force connectors apart or pull on the wiring harness.
- Always make sure locking tabs are disengaged before disconnecting multiplugs etc. and make sure that correct orientation is achieved before connection.
- Make sure that any protection covers, insulation etc. are replaced if disturbed.
Having confirmed that a component is faulty, carry out the following:
- Switch off the ignition and disconnect the battery.
- Remove the component and support the disconnected harness.
- When replacing electrical components, keep oily hands away from electrical connections and make sure that locking tabs on connectors are fully engaged.
BATTERY DISCONNECTION/CONNECTION
Always refer to the Electrical Section of this manual - Battery Connection/Disconnection prior to attempting to connect or disconnect the battery.
For additional information, refer to: Specifications (414-01 Battery, Mounting and Cables, Specifications).
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Fuel Handling Precautions
The following information lists basic precautions which must be observed if
fuel is to be handled safely. It also outlines other areas of risk which must
not be ignored. As this information is issued
Oil Seals
Never use a seal which has been improperly stored or handled.
Take great care when removing old seals that the sealing surfaces and
seal
housing are not damaged.
Carefully examine seal before in
Supplementary Restraint System ( SRS ) Precautions
WARNING:
Do not install rear facing child seats in the front passenger seat.
The SRS contains components which are potentially hazardous to service
personnel if not handled correctly. The following gu
SEE MORE:
Windscreen wiper detection
If Auto lamps is selected and the
windscreen wipers are switched on for 20
seconds or more, the side lamps, tail
lamps and headlamps will switch on
automatically. When the wipers are
switched off, the lamps will automatically
switch off 2 minutes later.
HEADLAMPS - CONDENSATION
Misting of lamp lense
Rear Suspension Rear
Stabilizer Bar
Bushing (G1779704) / Removal and
Installation
REMOVAL
NOTES:
Some variation in the illustrations may occur, but the essential
information is always correct.
Some components shown removed for clarity.
Removal steps in this procedure may contain installation details.
WARNING:
Make sure to support the vehicle with axle stands.
Raise and supp
