Lucerne V6-3.8L (2007)
Seat Heater: Symptom Related Diagnostic Procedures
Symptoms - Seat Heating and Cooling
SYMPTOMS - SEAT HEATING AND COOLING
IMPORTANT: The following steps must be completed before using the symptom tables.
1. Perform the Diagnostic System Check - Vehicle before using the symptom tables in order to verify that all of the following are true:
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There are no DTCs set.
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The control modules can communicate via the serial data link. See: Testing and Inspection/Initial Inspection and Diagnostic
Overview/Diagnostic Starting Point - Vehicle
2. Refer to the system description and operation from the following list in order to familiarize yourself with the system functions:
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Heated Seats Description and Operation
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Heated/Cooled Seats Description and Operation
Visual/physical Inspection
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Inspect for aftermarket devices which could affect the operation of the power seats.
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Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
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Inspect the seat adjuster track for conditions which may cause binding or objects within the seat adjustment range which obstruct movement or
interfere with wiring.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections.
See: Testing and Inspection/Component Tests and General Diagnostics
Symptom list
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
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Heated Seat Inoperative
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Heated/Cooled Seat Always On
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Heated/Cooled Seat Switch Indicator Malfunction
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Heated/Cooled Seats Inoperative
