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P1491 Diagnostic Trouble Code Discussion for December 2006

EVAP Vacuum Cut Valve/Bypass Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1491
Help Request Posted
2002 Dodge Ram 1500 Truck 5.9L MIL Lamp on VIN: 1D7HU18Z92
P1491: Cooling Fan Control Relay Circuit Malfunction. Alldata info: SYMPTOM P1491 - Radiator Fan Control Relay Circuit POSSIBLE CAUSES An open or shorted condition detected in the radiator fan control relay control circuit. This includes PWM solid state relays. The manufacturer doesn't provide any further inform...
December 22, 2006
2002 Dodge Ram 1500 Truck 5.9L MIL Lamp on VIN: 1D7HU18Z92
P1491: Cooling Fan Control Relay Circuit Malfunction. Alldata info: SYMPTOM P1491 - Radiator Fan Control Relay Circuit POSSIBLE CAUSES An open or shorted condition detected in the radiator fan control relay control circuit. This includes PWM solid state relays. The manufacturer doesn't provide any further inform...
December 22, 2006