Body Control Module/Gateway Module

Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

The BCM  /GWM  is located behind the glovebox, adjacent to the PJB. The BCM  /GWM  is attached to a bracket and bolted to the vehicle body. The BCM  /GWM  is the main controller of the vehicle body systems.

The BCM  /GWM  contains software to control the following functions:

• Determine the condition of the startup battery.
• Generator output:
  • Controls the generator output to reach a desired system voltage or target startup battery State Of Charge (SOC).
• Load management:
  • Load management controls the 12V power system to make sure that the system is not overloaded. In certain events, for example, during engine stop/start, some systems can be switched off.
• Control stop/start system functionality:
  • For additional information, refer to:

    STARTING SYSTEM - INGENIUM I4 2.0L PETROL/INGENIUM I4 2.0L PETROL - PHEV (G2744263)

    STARTING SYSTEM - V8 S/C 5.0L PETROL (G2255262)

    STARTING SYSTEM - INGENIUM I6 3.0L PETROL (G2497593)

The BCM  /GWM  communicates with other system control modules on the following:

• FlexRay
• High Speed (HS) CAN  power mode zero systems bus
• HS CAN  Underbody systems bus
• HS CAN  Human Machine Interface (HMI) systems bus
• HS CAN  body systems bus.

The BCM  /GWM  monitors the components and can store fault related DTC.  The DTC  and relevant data can be read by using the JLR  approved diagnostic equipment.