Century V6-3.1L VIN J (2005)
Shift Indicator: Description and Operation
PRNDL DISPLAY
The IPC displays the selected gear position as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the gear position.
The PRNDL display shall flash all gear positions if:
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The PCM detects a malfunction in the transmission range switch circuit.
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The IPC detects a loss of class 2 communications with the PCM.