K 1500 Suburban 4WD V8-5.3L VIN Z Flex Fuel (2003)
Garage Door Opener Transmitter: Symptom Related Diagnostic Procedures
- Symptoms - Garage Door Opener
IMPORTANT: Review the system description and operation in order to familiarize yourself with the system functions. Refer to Garage Door Opener
Description and Operation.
Visual/Physical Inspection
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Inspect for aftermarket devices which could affect the operation of the garage door opener. Refer to Checking Aftermarket Accessories in
Diagnostic Aids.
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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 Diagnostic Aids for Circuit Testing and Wiring Repair
procedures.
Symptom List
Refer to Garage Door Opener Inoperative in order to diagnose the symptom.
Steps 1-3
