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:
Engine Emission Control - Ingenium i4 2.0l Diesel Diesel Exhaust Fluid Tank
Drain and Refill (G1875905) / General procedures
GENERAL EQUIPMENT
Diesel Exhaust Fluid (DEF) quality hydrometer
Diesel Exhaust Fluid Dispensing Kit
Land Rover diagnostic equipment
DRAINING
CAUTION:
Extreme cleanliness must be exercised when handling these
components.
NOTES:
Make sure to add 1 liter of fluid to the upper tank and drain it
throu
Airbag operation
Airbags provide additional protection in
certain types of collision only - they do not
replace the need to wear a seat belt. All
occupants, in all seating positions, should
always wear their seat belt, whether or not
an airbag is present in that seating
position.
For the airbags to operate
correc
