Magnum V6-3.5L VIN V (2006)
Seat Heater: Description and Operation
Heated Seats
WARNING: THE FRONT PASSENGER SEAT ASSEMBLY CONTAINS CRITICAL COMPONENTS THAT AFFECT THE FRONT
PASSENGER AIRBAG DEPLOYMENT. CORRECTLY FUNCTIONING FRONT PASSENGER SEAT COMPONENTS ARE CRITICAL
FOR THE OCCUPANT CLASSIFICATION SYSTEM (OCS) TO PROPERLY CLASSIFY THE FRONT PASSENGER AND CALCULATE
THE PROPER AIRBAG DEPLOYMENT. UNAPPROVED MODIFICATIONS OR SERVICE PROCEDURES TO THE FRONT
PASSENGER SEAT ASSEMBLY, ITS RELATED COMPONENTS, OR TRIM COVER MAY INADVERTENTLY CHANGE THE AIRBAG
DEPLOYMENT IN CASE OF A FRONTAL CRASH. THIS COULD RESULT IN DEATH OR SERIOUS INJURY TO THE FRONT SEAT
PASSENGER IF THE VEHICLE IS INVOLVED IN AN ACCIDENT.
THE FOLLOWING REQUIREMENTS MUST BE STRICTLY ADHERED TO:
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DO NOT MODIFY THE FRONT PASSENGER SEAT ASSEMBLY OR COMPONENTS IN ANY WAY.
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DO NOT MODIFY THE FRONT SEAT CENTER CONSOLE OR CENTER POSITION SEAT IN ANY WAY.
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DO NOT USE PRIOR OR FUTURE MODEL YEAR SEAT TRIM COVERS NOT DESIGNATED FOR THE SPECIFIC MODEL
BEING REPAIRED. ALWAYS USE THE CORRECT SEAT TRIM COVER SPECIFIED FOR THE VEHICLE.
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DO NOT REPLACE THE SEAT TRIM COVER WITH AN AFTERMARKET TRIM COVER.
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DO NOT ADD A SECONDARY TRIM COVER OTHER THAN THOSE APPROVED BY DAIMLERCHRYSLER/MOPAR.
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AT NO TIME SHOULD ANY SUPPLEMENTAL RESTRAINT SYSTEM (SRS) COMPONENT OR SRS RELATED COMPONENT
OR FASTENER BE MODIFIED OR REPLACED WITH ANY PART EXCEPT THOSE WHICH ARE APPROVED BY
DAIMLERCHRYSLER/MOPAR.
Vehicles with the heated seat option can be visually identified by the two heated seat switches (1) located in the center stack of the instrument panel. The
heated seat system allows the driver and front seat passenger to select from two different levels of electrical seat heating (HI/LO). The heated seat system
for this vehicle includes the following major components, which are described in further detail later:
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Heated Seat Elements - Four heated seat elements are used per vehicle. Two heated seat elements are integral to each seat, one in the seat back and
the other in the seat cushion.
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Heated Seat Module - One heated seat module is used per vehicle. The Heated Seat Module is mounted under the right front seat. This module
contains the control logic and software for the front heated seat system. The module communicates on the Controller Area Network (CAN) data
bus.
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Heated Seat Switches - Two heated seat switches are used per vehicle, one for each heated seat. Both switches are mounted in the instrument panel
center stack.
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Instrument Cluster (CCN) - A Cab Compartment Node (CCN) is part of the instrument cluster on this vehicle. The CCN utilizes integrated
software and information carried on the CAN data bus. The CCN serves as the link between the heated seat switches and the heated seat module.
The heated seat system operates on battery current received through a fuse in the Integrated Power Module (IPM). Fused ignition switch output (run)
circuits are used, so that the heated seat system will only operate when the ignition switch is in the On position. The heated seat system will turn Off
automatically whenever the ignition switch is turned to any position except On.
A Heated Seat Module is used to control the heated seat system. The module responds to heated seat switch messages and ignition switch status inputs by
controlling the 12v output to the front seat heating elements through integral solid-state relays.
When either of the heated seat switches are depressed a resistance signal is sent to the Cab Compartment Node (CCN) or instrument cluster. The CCN
then sends a message via the Controller Area Network (CAN) data bus to the heated seat module, signaling the module to energize the heating element
for the selected seat. Amber Light Emitting Diodes LEDs) in the top portion of each switch indicate the level of heat in use: Two LEDs are illuminated
for high, one for low, and none for off. Pressing the switch once will select high-level heating. Pressing the switch a second time will select low-level
