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Diagnostic Trouble Code: B1693
Diagnostic Trouble Code Name: Autolamp On Circuit Failure. Autoheadlamps Driver Circuit Failure, 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
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Please Note: The DTC Information provided has been randomly generated.
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Diagnostic Trouble Code Description:
Brake Switch Circuit 1-2 Correlation
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P0504, P0571, or P0703
Circuit / System Description
The engine control module (ECM) monitors the brake lamp switch signal circuit and the cruise brake switch signal circuit. The brake lamp switch is normally open while the cruise brake switch is normally closed. The ECM monitors the status of the brake lamp switch signal circuit and the cruise brake switch signal circuit to see if they match when the brake pedal is pressed or released.
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