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Wiring diagrams Section: Testing & Diagnostics

Engine Controls - 3.5L - Introduction (1 of 2)

Engine Controls - 3.9L - Introduction (1 of 2)

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P0117 Chevrolet Uplander I

Testing & Diagnostics

The engine run time is more than 3 seconds. OR The ignition is ON and the intake air temperature (IAT) is less than 90°C (194°F).
The diagnostic runs continuously when the above conditions are met.