Grand AM V6-3100 3.1L MFI VIN M (1994)
Transmission Mode Indicator - A/T: Description and Operation
CIRCUIT OPERATION
The Electronic PRNDL Display feature indicates the transaxle gear selector position to the driver by using the Park/Neutral Position Switch and the
Electronic PRNDL Control Module. Battery voltage is supplied to the Electronic PRNDL Control Module and to the Park/Neutral Position Switch with
the Ignition Switch in "OFF" and in "RUN."
The Electronic PRNDL Control Module has 4 transaxle position inputs which are either switched to battery or left open by the Park/Neutral Position
Switch, depending on the transaxle position selected. The Electronic PRNDL Control Module decodes these inputs and lights the corresponding PRNDL
indicator.
The Electronic PRNDL Control Module has a lights-on input (CKT 8) that causes the PRNDL display to dim to the present dimmer control level with
the Park Lights or Headlights on.
The Electronic PRNDL Control Module has a Park Neutral output that grounds the ECM and Multi-function Alarm Module with the transaxle in "P" or
"N." This output is used for the daytime running lights disable, engine idle control and the Automatic Door Lock feature.
