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gmc Workshop Repair Guides


Savana 3500 V8-4.8L (2009)

Powertrain Management > Relays and Modules - Powertrain Management > Relays and Modules - Fuel Delivery and Air Induction > Main Relay (Computer/Fuel System) > Component Information > Locations > Page 2349

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2. Perform any adjustment, programming, or setup procedures that are required when a component or module is removed or replaced.
3. Clear the DTCs.
4. Turn OFF the ignition for 60 seconds.
5. Ignition ON, command the powertrain relay ON and OFF with a scan tool, while observing the powertrain relay circuit status parameters, The

circuit status parameters should change from OK to Not Run or Not Run to OK.

‹› If another DTC is present, refer to Diagnostic Trouble Code (DTC) List - Vehicle   (See: Computers and Control Systems/Testing and

Inspection/Diagnostic Trouble Code Descriptions) and perform the appropriate diagnostic procedure.

Powertrain Management > Relays and Modules - Powertrain Management > Relays and Modules - Fuel Delivery and Air Induction > Main Relay (Computer/Fuel System) > Component Information > Locations > Page 2349

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