Battery: Description and Operation

Battery and Cables

COMPONENT LOCATION

NOTE:
TD4 shown, i6 similar









OVERVIEW
The battery is located behind a cover on the Left Hand (LH) side of the engine compartment. The battery sits in a tray and is secured in position with a clamp plate and bolt assembly. The battery supplies electrical power to the starter motor, generator and BJB.
The BJB is mounted adjacent the LH front suspension turret. The BJB contains fusible links, blade and J-case fuses, and relays to distribute electrical power to various vehicle systems and junction boxes.

NOTE:
The fusible links are mounted on the inboard side of the BJB behind a series of removable covers.
The CJB is mounted behind the glovebox and receives its main power supply from the BJB. In addition to containing blade fuses, the CJB is the main controller for a number of vehicle systems. These functions are outlined in the relevant sections of this product.
The AJB is located beneath the luggage compartment carpet, adjacent the spare wheel well. The AJB is a modular design, and comprises up to 3 individual elements depending on vehicle specification. The AJB contains blade and J-case fuses, and relays to distribute electrical power to systems used at the rear of the vehicle. The AJB receives its main power supply from the BJB.

Starter Fuse









Incorporated in the cable between the battery and the starter motor/generator is a CAL3 starter fuse. The fuse is mounted adjacent the battery positive terminal and is integral with the cable assembly. In the event of fuse failure, the complete cable assembly must be replaced.

Wire Color Codes
New wire color codes have been introduced in the Electrical Circuit Diagrams. These new codes are shown in the table below.





Tracer wire color codes are separated from the main wire color code by a hyphen, thus BU-RD equates to a blue wire with a red tracer. For more information, refer to the Electrical Circuit Diagrams and the Electrical Library.

POWER MODES
The CJB controls the power supplies for the various vehicle functions. There are 9 power modes available which are used by various systems to determine the operating condition of the vehicle. Only 3 of these modes will be noticeable to the driver and technicians as follows:
- Power mode 4 - Accessory
- Power mode 6 - Ignition
- Power mode 9 - Engine crank.

Transport Mode
All new vehicles will be delivered from the factory in transport mode. Transport mode replaces the traditional transit relay and inhibits a number of electrical systems and features to eliminate quiescent drain from the battery during delivery. When the vehicle is in transport mode 'transp' will be displayed in the instrument cluster odometer.
To remove the vehicle from transport mode, the Land Rover approved diagnostic system must be connected during the Pre-Delivery Inspection (PDI). For more information, refer to the PDI manual.

BATTERY JUNCTION BOX





















CENTRAL JUNCTION BOX













AUXILIARY JUNCTION BOX





The Auxiliary Junction Box (AJB) comprises up to 3 individual elements, depending on vehicle specification. The casing of each junction box is color coded as follows:
- AJB 1 = Black
- AJB 2 = White
- AJB 4 = Blue

NOTE:
AJB 3 is not used on Freelander 2






















NOTE:
Relay RD1 is a 'plug in' ring break, not a relay