MHEV Battery Electric Cooling Fan

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

CAUTION: Make sure that the air inlet behind the second row seats is not obstructed. A reduction in the cooling airflow can cause overheating in the following components:

The MHEV battery
The DC/DC .

Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

ITEM	DESCRIPTION
1	Wiring harness connector
2	Cooling air inlet
3	Cooling air outlet

The MHEV battery electric cooling fan is adjacent to the MHEV battery housing. The MHEV battery electric cooling fan housing is attached to the cradle with 2 bolts.

The cooling fan outlet connects with the MHEV battery housing. Cool air is directed into the housing where it passes over the outside of the MHEV battery in order to absorb heat.

The MHEV battery electric cooling fan has a short fly lead with a 4-pin wiring harness connector. The 4-pin connector only uses 3 pins of the wiring harness connector for the following electrical connections:

Power supply from the Passenger Junction Box (PJB).
A PWM signal from the BECM in the MHEV battery.
A ground connection.

The BECM in the MHEV battery sends a PWM signal to the MHEV battery electric cooling fan. The BECM controls the speed of the MHEV battery electric cooling fan. The MHEV battery electric cooling fan then regulates its speed depending on the duty cycle of the PWM signal.