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Diagnostic Trouble Code: B1251
Diagnostic Trouble Code Name: Air Temperature Internal Sensor Circuit Open Input floats > 4.56V
Vehicle Make: Ford
Vehicle Model: Falcon (FG)
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:
Exhaust Gas Recirculation Solenoid Control Circuit Low Voltage
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P0403, P0489, or P0490
Circuit / System Description
Voltage is provided to the exhaust gas recirculation (EGR) valve by the ignition?1 voltage circuit through a fuse. Ground is provided to the EGR valve on the control circuit by a low side driver within the engine control module (ECM). The ECM monitors the voltage on the control circuit of the EGR valve to determine if a failure is present.
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