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Diagnostic Trouble Code: B1253

Diagnostic Trouble Code Name: Air Temperature Internal Sensor Circuit Short To Ground Input < 0.32V, External Fault

Vehicle Make: Ford

Vehicle Model: Falcon (BF)

Diagnostic Code Entered By: ZerOne

Diagnostic Code Entered On: Wed Oct 06, 2010 11:00 pm

Please Note: The DTC Information provided has been randomly generated.

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Diagnostic Trouble Code Description: 

Exhaust Gas Recirculation Solenoid Control Circuit

Possible Sensor Faults
ECM

Possible Related Diagnostic Trouble Codes
DTC P0403-P0406 or P042E

Circuit / System Description
Voltage is provided to the exhaust gas recirculation (EGR) valve by the ignition voltage circuit through fuse?F47. 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.

The ECM monitors the position of the EGR valve through the EGR valve position sensor. The EGR valve position sensor sends a feedback voltage on the signal circuit to the ECM. The EGR position sensor voltage varies depending on the position of the EGR valve.

The EGR valve utilizes the following circuits: