Dual Battery Module

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

The DBM is located at the rear of the right wheel arch in the luggage compartment, adjacent to the GWM and the RJB. The DBM is attached to a bracket, which is attached to a second bracket secured to the vehicle body.

The DBM is connected by two hardwired connections to the DBJB. The DBM uses these two connections to apply battery voltage to the contactor coils in the DBJB. A LIN bus connection from the GWM passes contactor operation signals to the DBM which operates the contactors as applicable.

The GWM will also instruct the DBM to apply charging to the secondary battery via a LIN bus message. The GWM instructs the DBM of the charging current required for the secondary battery and the DBM applies the requested stabilized current to the secondary battery via a dedicated connection direct to the secondary battery.

The DBM diagnoses the coils of the contactors and will report a fault via the LIN bus to the GWM.

The DBM receives a fused power supply from the RJB.