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Diagnostic Trouble Code: P0174
Diagnostic Trouble Code Name: Fuel System too lean (bank 2-V8).
Vehicle Make: Ford
Vehicle Model: Falcon (AU)
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:
Generator L-Terminal Circuit
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P0621
Circuit / System Description
The engine control module (ECM) uses the generator turn ON control circuit to control the load of the generator on the engine. A high side driver in the ECM applies a voltage to the voltage regulator. This controls the voltage regulator to turn the field circuit ON and OFF. The ECM monitors the state of the generator turn ON control circuit. The ECM should detect low voltage on generator turn on control circuit when the ignition is ON and the engine is OFF, or when the charging system malfunctions. With the engine running, the ECM should detect high voltage on the generator turn on control circuit.
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