chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Symptoms - Seat Heating and Cooling|Page 12918 > < Symptoms - Seat Heating and Cooling|Page 12916
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Seat Heater: Testing and Inspection
Front Heated Seat Malfunction (Dealer Installed)

Front Heated Seat Malfunction (Dealer Installed)

Diagnostic Instructions

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Perform the Diagnostic System Check - Vehicle   (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.

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Review Strategy Based Diagnosis   (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.

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Diagnostic Procedure Instructions   (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure Instructions)
provides an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

Battery positive voltage and ground is supplied to the seat heating control module from the auxiliary power outlet harness connector located under the
CD player. This voltage is used to power up the heated seat module and to supply power to the seat heater elements. Battery voltage is supplied to the
heated seat switch from the seat heating control module. When a heated seat switch is pressed, battery voltage is applied through the switch contacts and
the heated seat switch signal circuit to the seat heating control module indicating the heated seat command. In response to this signal, the seat heating
control module applies battery voltage through the control circuit to the seat heater elements.

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 (Factory Installed)   (See: Description and Operation/Heated Seats Description and Operation (Factory
Installed))Heated Seats Description and Operation (Dealer Installed)   (See: Description and Operation/Heated Seats Description and Operation (Dealer

Symptoms - Seat Heating and Cooling|Page 12918 > < Symptoms - Seat Heating and Cooling|Page 12916