HEATED SYSTEMS
TABLE OF CONTENTS
page page
HEATED SEATS
DESCRIPTION ..........................1
OPERATION ............................2
DIAGNOSIS AND TESTING - HEATED SEATS . . 2
DRIVER HEATED SEAT SWITCH
DESCRIPTION ..........................2
OPERATION ............................2
DIAGNOSIS AND TESTING - DRIVER HEATED
SEAT SWITCH .........................2
REMOVAL .............................3
INSTALLATION ..........................3
HEATED SEAT ELEMENT
DESCRIPTION ..........................3
OPERATION ............................3
DIAGNOSIS AND TESTING - HEATED SEAT
ELEMENT ............................3
HEATED SEAT RELAY
DESCRIPTION ..........................4
OPERATION ............................4
DIAGNOSIS AND TESTING - HEATED SEAT
RELAY ...............................4
REMOVAL .............................4
INSTALLATION ..........................4
HEATED SEAT SENSOR
DESCRIPTION ..........................4
DIAGNOSIS AND TESTING - HEATED SEAT
SENSOR .............................4
PASSENGER HEATED SEAT SWITCH
DESCRIPTION ..........................5
OPERATION ............................5
DIAGNOSIS AND TESTING - PASSENGER
HEATED SEAT SWITCH .................5
REMOVAL .............................5
INSTALLATION ..........................5
HEATED SEATS
DESCRIPTION
Individually controlled, electrically heated front
seats are available factory-installed optional equip-
ment on this model. Vehicles with this option can be
visually identified by the two separate heated seat
switches mounted in the instrument panel. The
heated seat system allows the front seat driver and
passenger to select from two different levels of sup-
plemental electrical seat heating, or no seat heating
to suit their individual comfort requirements. The
heated seat system for this vehicle includes the fol-
lowing major components, which are described in fur-
ther detail later in this section:
• Heated Seat Elements - Four heated seat ele-
ments are used per vehicle, two for each front seat.
One heating element in the seat back and one in the
seat cushion. The heated seat sensor is integral to
the seat cushion heating element. The heated seat
elements are integral to the front seat and seat back
cushions. Refer to heated seat elements later in this
section for additional information.
• Heated Seat Relay - One heated seat relay is
used per vehicle. The relay is located in the fuse
block and is responsible for distributing the voltage
(B+) to the heated seat elements.
• Heated Seat Sensors - Two heated seat sen-
sors are used per vehicle, one for each front seat. The
heated seat sensors are integral to each of the heated
seat element assemblies. Refer to heated seat sensor
later in this section for additional information.
• Heated Seat Switches - Two heated seat
switches are used per vehicle, one for each front seat.
The switches are mounted in the instrument panel.
Refer to heated seat switches later in this section for
additional information.
Hard wired circuitry connects the heated seat sys-
tem components to each other through the electrical
system of the vehicle. Refer to Wiring for additional
information. The wiring information includes wiring
diagrams, proper wire and connector repair proce-
dures, further details on wire harness routing and
retention, as well as pin-out and location views for
the various wire harness connectors, splices and
grounds.
VA HEATED SYSTEMS 8G - 1
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