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Tahoe / Yukon Service Manual

Symptoms - Stop_Start System

Symptoms - Stop/Start System

  1. Perform the Diagnostic System Check - Vehicle before using the symptom tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data link.
  2. Review the system description and operation in order to familiarize yourself with the system functions. Refer to Stop/Start System Description and Operation. Visual/Physical Inspection Inspect for aftermarket devices which may affect the operation of the Stop/Start System. Refer to Checking Aftermarket Accessories. Inspect the easily accessible or visible system components, for obvious damage or conditions, which may 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. Symptom List Refer to a symptom diagnostic procedure to diagnose the symptom: Stop/Start System Malfunction