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 blanks if:

1. The PCM detects a malfunction in the transmission range switch circuit.
2. The IPC receives a class 2 message indicating that the park position and the column park switch indicate a position other than park.
3. The IPC detects a loss of class 2 communications with the PCM.