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Diagnostic Trouble Code: B1231
Diagnostic Trouble Code Name: Crash Data Memory Full
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:
5-Volt Reference 3 Circuit
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P0641-P0643, P0651-P0653, or P0697-P0699
Circuit / System Description
The engine control module (ECM) has 3 5?V reference circuits. The ECM provides the 5?V reference to various sensors. Each reference circuit provides a 5?V reference for greater than one sensor. An open, short to ground, or short voltage on one of the 5?V reference circuits can affect all the components connected to that 5?V reference circuit. The ECM monitors the voltage on the 5?V reference circuits.
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