VUE FWD V6-3.5L (2008)
voltage is supplied to the heated seat switch and the heated seat module from the RUN fuse located in the underhood fuse block. When commanded ON,
the heated seat module uses this voltage to heat the seat heating elements. The heated seat module and the seat heating elements are grounded through the
module ground circuit to G301.
Each time the heated seat switch is pressed, B+ is supplied to the heated seat module through the heated seat signal circuit. The module counts these
inputs to determine what level of heat the vehicle operator is commanding. In response to these switch signals, the heated seat module closes it's contacts
and applies battery positive voltage through the heated seat element supply voltage circuit to the seat heating elements. When the thermistor inside the
seat cushion reaches a certain resistance, the control module open and close the supply voltage in order to maintain that heat level.
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics (See: Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (See: Description and Operation)
Electrical Information Reference
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Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics)
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Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics)
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Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics)
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Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics)
Circuit/System Verification
1. Ignition ON, cycle the heated seat switch between the high, medium and low position. The heated seats should operate in all positions.
‹› If the heated seats do not operate, Refer to Heated Seats Inoperative.
2. Cycle the heated seat switch between the high, medium and low position. The appropriate heated seat indicator should illuminate.
‹› If either indicator does not illuminate Refer to Headed Seat Indicator Inoperative.
Circuit/System Testing
Heated Seats Inoperative
1. Ignition OFF, disconnect the harness connector at the appropriate heated seat switch.
2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal A3 and ground.
‹› If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
3. Ignition OFF, connect the harness connector at the heated seat switch. Disconnect the harness connector at the appropriate heated seat module.
4. Test for less than 1 ohm between the ground circuit terminal 14 and ground.
‹› If greater than the specified range, test the ground circuit for an open/high resistance.
5. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
‹› If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
6. Verify that a test lamp illuminates between the B+ circuit terminal 2 and ground.
‹› If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
7. Press and release the heated seat switch. Verify that a test lamp illuminates between the control circuit terminal 8 and ground each time the switch
is pressed.
‹› If the test lamp does not illuminate when the switch is pressed, test the signal circuit for a short to ground or an open/high resistance. If the
circuit test normal test or replace the switch.
‹› If the test lamp remains illuminated, test the control circuit for an short to voltage. If the circuit test normal test or replace the switch.
8. Ignition OFF, disconnect the harness connector at the heated seat element - cushion.
