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Diagnostic Trouble Code: 027
Diagnostic Trouble Code Name: Driver Window Express Up Switch Circuit
Vehicle Make: Chevrolet
Vehicle Model: Epica (V250)
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 Circuit Low Voltage
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P0192 or P0193
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 reference ground 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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