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Mass Air Flow (MAF) Sensor <--> [Air Flow Meter/Sensor] > < Accessory Signal|Description and Operation

C 2500 Truck 2WD V8-5.7L VIN R (1997)

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temperature has dropped about 4°C (7°F). If the auxiliary cooling fan has been turned ON by high A/C head pressure, the VCM will turn the fan OFF
when the pressure has dropped to 180 psi. The minimum ON time for the auxiliary cooling fan is 50 seconds.

Mass Air Flow (MAF) Sensor <--> [Air Flow Meter/Sensor] > < Accessory Signal|Description and Operation