Yukon/Denali 2WD V8-4.8L VIN V (2005)
Navigation System: Symptom Related Diagnostic Procedures
A Symptoms - Navigation Systems
SYMPTOMS
IMPORTANT: The following steps must be completed before using the symptom tables.
-
Perform the Diagnostic System Check - Vehicle in Vehicle DTC Information, 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. See: Testing and Inspection/Initial Inspection and Diagnostic
Overview/Diagnostic System Check - Vehicle
-
Review Navigation System Description and Operation in order to familiarize yourself with the system functions.
Visual/Physical Inspection
-
Inspect for aftermarket devices which could affect the operation of the navigation system components.
-
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.
Symptom List
Refer to No Global Positioning System (GPS) Reception in order to diagnose the symptom.
