RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
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an invalid fault position.
The LED's in the selector assembly are illuminated mashed in the following manner to indicate a particular condition or state.
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A solidly illuminated LED indicates a successfully completed shift and the current operating mode of the transfer case. While a shift has been
requested but not yet completed, the LED for the desired transfer case position is flashed.
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A flashing operating mode LED for the desired gear indicates that a shift to that position has been requested, but all of the driver controllable
conditions have not been met. This is in an attempt to notify the driver that the transmission needs to be put into NEUTRAL, the vehicle speed is
too great, or some other condition outlined (other than a diagnostic failure that would prevent this shift) elsewhere is not met. Note that this
flashing will continue indefinitely until the conditions are eventually met, or the selector switch position is changed, or if diagnostic routines no
longer allow the requested shift.
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If the driver attempts to make a shift into transfer case NEUTRAL, and any of the driver controllable conditions are not met, the request will be
ignored until all of the conditions are met or until the NEUTRAL select button is released. Additionally the neutral lamp will flash, or begin to
flash while the button is depressed and operator controllable conditions are not being met. All of the LED's except the Neutral will flash if any of
the operator controllable conditions for shifting are not met while the Neutral button is depressed. This "toggle" type of feature is necessary
because the TCCM would interpret another request immediately after the shift into transfer case NEUTRAL has completed.
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No LED's illuminated indicate a fault in the transfer case control system.
