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Grand Cherokee 2WD V6-3.7L (2008)

Relays and Modules > Relays and Modules - Transmission and Drivetrain > Relays and Modules - Differential > Control Unit, Differential Lock > Component Information > Description and Operation > Description

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Control Unit: Description and Operation
Description

DESCRIPTION

The Final Drive Control Module (FDCM) (2) is a microprocessor-based assembly, controlling a 4X4 Transfer Case and Front and Rear Electronic
Limited Slip Differentials (ELSD's). Communication is via the CAN serial bus. Inputs include user selectable 4X4 modes that include 4WD Full Time
(4HI), 4LO, Neutral. The logic and driver circuitry is contained in aluminum housing base and a stamped steel housing cover with an embedded heat
sink

The FDCM is installed inside the passenger compartment underneath the driver side of the rear seat.

Relays and Modules > Relays and Modules - Transmission and Drivetrain > Relays and Modules - Differential > Control Unit, Differential Lock > Component Information > Description and Operation > Description

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