Diagnostic Starting Point - Transfer Case. GMC Truck Envoy XUV 2005

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2005 🢒 Envoy XUV 🢒 Driveline/Axle 🢒 Transfer Case - NVG 126-NP4 🢒 Diagnostic Starting Point - Transfer Case

Begin the system diagnosis with the Diagnostic System Check - Vehicle in Vehicle DTC Information.

The Diagnostic System Check - Vehicle in Vehicle DTC Information will provide the following information:

•	The identification of the control module or modules which command the system.

•	The ability of the control module or modules to communicate through the serial data circuit.

•	The identification of any stored diagnostic trouble codes (DTCs) and the status of the codes.

The use of the Diagnostic System Check - Vehicle in Vehicle DTC Information will identify the correct procedure for diagnosing the system and where the procedure is located.