Scanning DTC and Basic Reset Function by G-scan for Hummer 2008

G-scan software covers not only the latest GM models but also older models like 2008 Hummer H3. If there is OBD port, G-scan covers. This article will show you guide on how to scan diagnostic trouble code(DTC) and basic function reset via G-scan for Hommer 2008 H3. If you want to know more about G-Scan function, please refer to G-Scan test cases.

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Steps:

Connect G-Scan3 to Hummer obd port, then enter menu to select “Diagnosis”

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Select “GM”–>”AUTOMATIC SELECTION”

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Hit “OK”

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Select “System Search”, it will scan all available systems equipped in the vehicle. Hit “OK”

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If the diagnostic trouble code(DTC) is present in the system, red circle will be displayed.

Hitting red circle will display the trouble code in the system.

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Hit “Show DTC” will display all DTC at once

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Now Let’s perform basic reset function in the engine.

Select “(E)3.7L L5 LLR Engine Control Module (5GT)

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Select “Special Function”–>”Fuel Trim Reset”

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Hit “OK” Fuel Trim Reset is completed.

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Let’s perform “Idle Learn Reset” , scroll down and hit “Idle Learn Reset”

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You need to clean the throttle body before performing this function.

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Turn the ignition ON and engine OFF. After that hit “OK”

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Idle Learn Reset is completed.

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Most functions available for 2000’s Hummer are very simple ones like reset. G-scan software covers not only the latest GM models but also most of previous models like 2008 Hummer. Don’t forget to keep your G-scan’s software to the latest version to get full benefit of software.

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