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Diagnostic Trouble Code: B1046
Diagnostic Trouble Code Name: Driver Side Air Bag Curtain Cross Link to Another Firing Loop
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:
Trans Mode Switch Circuit
Possible Sensor Faults
TCM
Possible Related Diagnostic Trouble Codes
DTC P1763
Circuit / System Description
Winter mode programming in the transmission control module?(TCM) will allow the driver selection of a third gear start in order to reduce wheel spin under low traction conditions. The winter mode switch is a console mounted momentary contact switch located on the electronic PRNDL assembly. Accessory voltage is supplied to the electronic PRNDL assembly through the ELEC PRNDL fuse. When the winter mode switch is depressed, it momentarily contacts the switch signal circuit. The rear integration module?(RIM) recognizes the voltage on the circuit and sends a class?2 serial data message to the dash integration module?(DIM). The DIM sends a class?2 message to the engine control module?(ECM). The ECM sends a request to the TCM through the controller area network?(CAN) to enable the winter mode program.
The TCM evaluates the request, and if operating conditions are correct for enabling the program, the TCM sends a confirmation message to the ECM. The ECM then requests the instrument panel cluster?(IPC) to illuminate the winter mode indicator.
The winter mode feature remains enabled until the mode switch is pressed again, the transmission is placed in a lower gear, and certain vehicle speed, transmission fluid temperature, or accelerator pedal positions are exceeded. Once disabled, the TCM will resume a normal shift pattern.
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