Diagnostic Trouble Code: B1790
Diagnostic Trouble Code Name: Autolamp Sensor Input Circuit Failure. Twilight sensor input circuit failure
Vehicle Make: Ford
Vehicle Model: Falcon (BF)
Diagnostic Code Entered By: ZerOne
Diagnostic Code Entered On: Wed Oct 06, 2010 11:00 pm
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Please Note: The DTC Information provided has been randomly generated.
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Diagnostic Trouble Code Description:
Fuel Rail Pressure Sensor Performance
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P0191
Circuit / System Description
The fuel rail fuel pressure sensor detects fuel pressure within the fuel rail. The engine control module (ECM) provides a 5?V reference voltage on the 5?V reference circuit and ground on the low reference circuit. The ECM receives a varying signal voltage on the signal circuit. The ECM monitors the voltage on the fuel rail fuel pressure sensor circuits. When the fuel pressure is high, the signal voltage is high. When the fuel pressure is low, the signal voltage is low.
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