Envoy 2WD V8-5.3L (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.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to Heated Seats Description and Operation.
Visual/Physical Inspection
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Inspect for aftermarket devices which could affect the operation of the system.
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Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
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 Heated Seat Inoperative.
Heated Seat Inoperative
HEATED SEAT INOPERATIVE