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Used Land Rover Discovery Electrical Systems

All used Land Rover Discovery Electrical Systems listed on Breakeryard.com are tested, original (OEM) manufacturer parts and come with a 14 day money back guarantee. Breakeryard.com list cheap new OES or aftermarket car parts at discounted prices or used OEM car parts up to 80% cheaper than main dealer prices for Land Rover Discovery from premium breaker yards from across the UK.

About Electrical Systems

Getting into the details of the electrical system

The electrical systems on most modern cars consist of negative earth circuits. The main power source is the 12 volt battery and when the engine is running, the alternator. The systems run off a positive flow with a negative earth return through the body of the vehicle. On some older vehicles the system is run on a positive earth, but this is mainly on 6 volt systems.

A set of wiring looms, which is all the cables bound together which run through the vehicle and branch of where power is needed for individual components. In addition there is a heavier cable running the main charging, ignition and the starter motor to supply the high voltage required to turn and start the engine and keep the battery charged. The wiring for all the circuits in the car are of different thickness and amperage depending on the components power requirements. The wires are colour coded to enable tracing wires when looking for a fault. On modern cars with electronic control devices and components, printed circuits are widely used as they take up less space than a bunch of wires. The power source for the electrical systems is switched on via the ignition key/switch apart from the lighting system which is on a live feed to enable the lights to be used for parking. This ensures that the battery will not be run down when the car is left unattended.

The power source runs through a fuse box and relays, which protects components from damage due to electrical short outs. Apart from the starter motor most components run on 5 amp. 10 amp, 15 amp, 20 amp, 25 amp and 30 amp wiring and are fused according to the power requirements being carried on each wire. Components are activated through the ignition, relays and switches and with remote controlled devices through electromagnetic switches.

What if something goes wrong with the electrical system?

The most common faults with the electrical system involve the lighting system of the vehicle requiring the replacement of blown bulbs. In the event of a malfunction of any component, the fuses should be checked in the fuse box, normally located in the front footwells or glove compartment. This box has a labelled colour coded fuse array and individual fuses can be visually checked to see if it has blown. This serves as a starting point to resolving electrical faults.

Land Rover trivia

  • Inspired by the Jeeps that had been used in WWII, the first Land Rover's steering wheel was in the middle of the dashboard. This was partly to counter the need to create left and right-hand drive models for different countries.
  • The designer Charles S. King worked with Rolls Royce to design jet engines before going on to build the Range Rover. King would go onto building a car around those jet engines that then held the world land speed record, the first turbine-powered vehicle to do so.
  • Land Rover was the two-decade standout winner of the Camel Trophy, a gruelling off-road challenge that sees vehicles compete in Siberia, the Sahara, Australia, and other hostile terrains.
  • Land Rover made the 101 Forward Vehicle for the UK military. It was originally built to haul howitzer cannons! The vehicle is so high, in fact, that a step had to be built into the front wheel so that the driver could get into the cab.
  • Land Rover was notorious for trying to find ways to avoid paying taxes and extended that to their customers too. They built the Defender 110 so that it could (just about) fit 12 people! Technically, that meant that they could class it as a bus, and owners didn't have to pay standard road tax.