Range Rover Evoque: Battery and Cables AWD

Component Location

COMPONENT LOCATION - SHEET 1 OF 2 - DW12c

Range Rover Evoque. Battery, Mounting and Cables

  1. CJB (central junction box)
  2. ECM (engine control module)
  3. RJB (rear junction box)
  4. Battery
  5. BJB (battery junction box)
  6. Starter motor
  7. Generator

COMPONENT LOCATION - SHEET 2 OF 2 - GTDi

Range Rover Evoque. Battery, Mounting and Cables

  1. CJB
  2. ECM
  3. RJB
  4. Battery
  5. BJB
  6. Starter motor
  7. Generator

Overview

OVERVIEW

The battery is located behind a cover on the LH (left-hand) 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 (battery junction box).

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 (central junction box) 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 manual.

System Operation and Component Description

Control Diagram

NOTE: A = Hardwired connection; D = High speed CAN (controller area network) bus; O = LIN (local interconnect network) bus

SHEET 1 OF 2 - DW12c

Range Rover Evoque. Battery, Mounting and Cables

  1. CJB (central junction box)
  2. Battery monitoring system (BMS) module
  3. Battery
  4. RJB (rear junction box)
  5. ECM (engine control module)
  6. Generator
  7. Starter motor
  8. BJB (battery junction box)
  9. Starter fuse

SHEET 2 OF 2 - GTDi

Range Rover Evoque. Battery, Mounting and Cables

  1. CJB
  2. Battery monitoring system (BMS) module
  3. Battery
  4. RJB
  5. ECM
  6. Generator
  7. Starter motor
  8. BJB
  9. Starter fuse

System Operation

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.

Range Rover Evoque. Battery, Mounting and Cables

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:

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.

Transport mode also inhibits some electrical loads when the engine is running to ensure that the battery is never discharged while the engine is running.

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.

Stop/Start System Component Location

Range Rover Evoque. Battery, Mounting and Cables

  1. Voltage quality module
  2. BMS module
  3. Absorption glass mat battery

Component Description

Absorption Glass Mat Battery

Range Rover Evoque. Battery, Mounting and Cables

To counteract the extreme power consumption of a Stop/Start system and/or the Park Heat feature, a high-performance battery based on Absorption Glass Mat technology has been introduced. The battery owes its superiority over a conventional battery to the 'absorbent glass mat' which is a fine fiberglass mat compressed between the lead plates. Refer to: Starting System - AWD (303-06A Starting System - TD4 2.2L Diesel, Description and Operation).

Battery Monitoring System

The Battery Monitoring System (BMS) was introduced due to fuel economy benefits, battery life optimization and enhanced diagnostics.

Moreover, optimal battery health is a fundamental factor in the correct operation of the Stop/Start system. Therefore, the BMS calculates and communicates the battery status.

BMS Plate

  1. BMS plate

The BMS plate is a metal plate that is bolted on top of the BMS unit on the battery negative terminal. The plate is used to secure the battery negative cables and the ECM earth to the battery negative terminal.

Voltage Quality Module

During an engine Stop/Start cycle the Voltage Quality Module (VQM) maintains some of the vehicle's electrical systems by supplying a support voltage around the vehicle's electronic components during an engine restart. This allows crucial vehicle systems to continue uninterrupted when there is a sudden draw of current from the battery.

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