Durango 4WD V8-4.7L Flex Fuel (2008)
Seat Heater Control Module: Description and Operation
Front Seats
Description
DESCRIPTION
The heated seat module (2) is located behind the right rear D-pillar trim (1). The heated seat module has a single electrical connector (3).
The heated seat module is an microprocessor designed to use CAN bus messages from the cluster Cabin Compartment Node (CCN) to operate the heated
seat elements in both front seats.
Operation
OPERATION
The heated seat module operates on fused battery current received from the ignition switch. The module is grounded at all times through a ground lug on
the right rear D-pillar. Inputs to the module include CAN bus messages and standard hardwired 12volt power and ground. In response to those inputs the
heated seat module controls the battery current to the heated seat elements.
When a heated seat switch CAN bus signal is received by the heated seat module, the module energizes the selected heated seat element. The Low heat
set point is about 38°C (100.4°F), and the High heat set point is about 42°C (107.6°F).
If the heated seat module detects a heated seat element OPEN or SHORT circuit, it will record and store an diagnostic trouble code (DTC).
