For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2006 🢒 Uplander Ext. 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 No Global Positioning System (GPS) Reception

No Global Positioning System (GPS) Reception for Chevrolet Uplander Ext. 2006

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Reference Information

Schematic Reference

Navigation System Schematics

Connector End View Reference

Navigation System Component Views

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Important: The global positioning system (GPS) requires a clear line of sight to the sky to operate properly. In most cases the GPS will not have reception near tall buildings or inside structures.

Remove the GPS antenna and cable and place it outside the vehicle. Verify the GPS reception is operational within 5 minutes.

⇒	If GPS becomes operational, remove any suspect window tint or objects that may obstruct the GPS signal.

Replace the GPS antenna. Verify the GPS reception is operational within 5 minutes.

⇒	If GPS is not operational, replace the radio.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•	Control Module References for radio replacement, setup, and programming

•	Global Positioning System (GPS) Antenna Replacement