Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1996 GMC K 2500 Suburban 4WD V8-6.5L DSL Turbo VIN FFACTORY OEM SERVICE PROCEDURE
Mode Description: Overview
On vehicles equipped with On Board Diagnostics II (OBD II), there are three options available in the scan tool Diagnostic Trouble Code (DTC) mode to display the enhanced information available. A description of the new modes, DTC Info and Specific DTC, follows. After selecting DTC, the following menu appears:
^ DTC Info
^ Specific DTC
^ Freeze Frame
^ Fail Records
^ Clear Info
The following is a brief description of each of the sub menus in DTC Info and Specific DTC. The order in which they appear here is alphabetical and not necessarily the way they will appear on the scan tool.
DTC Info Mode
Use the DTC Info mode to search for a specific type of stored DTC information. There are seven choices. The electronic service information may instruct the technician to test for DTCs in a certain manner. Always follow published service procedures.
In order to get a complete description of any status, press the Enter key before pressing the desired F-key. For example, pressing enter, then a F-key will display a definition of the abbreviated scan tool status.
^ DTC Info
^ Specific DTC
^ Freeze Frame
^ Fail Records
^ Clear Info
The following is a brief description of each of the sub menus in DTC Info and Specific DTC. The order in which they appear here is alphabetical and not necessarily the way they will appear on the scan tool.
DTC Info Mode
Use the DTC Info mode to search for a specific type of stored DTC information. There are seven choices. The electronic service information may instruct the technician to test for DTCs in a certain manner. Always follow published service procedures.
In order to get a complete description of any status, press the Enter key before pressing the desired F-key. For example, pressing enter, then a F-key will display a definition of the abbreviated scan tool status.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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