Startup Battery And Cables - INGENIUM I6 3.0L Petrol (G2342547): Overview: Notes

WARNING: This page is about a different variant/trim than selected.

CAUTION: When connecting a slave startup battery to the vehicle, always use the vehicle body ground terminal in the engine compartment. Never connect directly to the startup battery ground terminal, because the BMS control module can be damaged.

NOTE: The fusible links are installed behind a removable cover.

The startup battery supplies electrical power to the BJB. The BJB connects to the following components:

Starter motor
- For additional information, refer to: STARTING SYSTEM
DC/DC
- For additional information, Refer to: DIRECT CURRENT TO DIRECT CURRENT CONVERTER
Jump start terminal - positive.

The DC/DC supplies the power for normal operation of the 12V systems only in Power Mode 7 (engine running).

The BJB supplies power to the following:

EJB
AJB
PJB
BCMB .

The BMS control module is installed on the startup battery negative terminal. The BMS control module is connected to the vehicle body ground by a ground cable installed on the BMS control module. The BMS control module sends startup battery data to the Body Control Module (BCM)/Gateway Control Module (GWM). When you install a new startup battery on the vehicle, you must calibrate the BMS control module with the Jaguar Land Rover (JLR) approved diagnostic equipment.

The BCM /GWM is the main controller of the vehicle body systems. The BCM /GWM contains the whole charging system software required to control the startup battery charging system and components. The BCM /GWM monitors the components and stores the related Diagnostic Trouble Code(s) (DTC)s.

The DC/DC provides electrical power to support the 12V in Power Mode 7 (engine running) in MHEV vehicle. The output voltage of the DC/DC is controlled by the BCM /GWM . The DC/DC operating mode is controlled by:

Vehicle Supervisory Controller (VSC) or
PCM .

For additional information, Refer to: DIRECT CURRENT TO DIRECT CURRENT CONVERTER

The BJB, EJB, PJB, BCMB and AJB contain fuses and relays to distribute electrical power to various vehicle systems. The junction box contains the megafuses.

The BJB is installed under the driver seat, beside the startup battery.
The EJB is installed in the engine compartment.
The PJB is installed on the passengers side behind the glovebox and next to the BCM /GWM .
The BCMB is located on the right of the loadspace and behind the trim panel.
The AJB is installed under the loadspace compartment floor.

The single jump start terminal is located adjacent to the right top mount in the engine compartment. A cover protects the positive terminal when not in use. When you have to jump start the vehicle, remove the cover and attach the positive jump lead to the terminal. When the positive terminal is not in use, install the cover.