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gmc Workshop Repair Guides


Savana 3500 V8-4.8L (2009)

Powertrain Management > Computers and Control Systems > Relays and Modules - Computers and Control Systems > Main Relay (Computer/Fuel System) > Component Information > Locations > Page 3004

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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: Testing and Inspection/Diagnostic Trouble Code

Descriptions) and perform the appropriate diagnostic procedure.

Powertrain Management > Computers and Control Systems > Relays and Modules - Computers and Control Systems > Main Relay (Computer/Fuel System) > Component Information > Locations > Page 3004

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