Transmission Range Indicator

The transmission range indicator indicates the gear selection for the automatic transmission. The transmission range indicator receives the input code through 4 wires from the transmission range selector. The transmission range selector is part of the park/neutral position switch. A gear selection indication Light Emitting Diode (LED), e.g. Reverse (R) illuminates depending upon which combination of the 4 wires to the transmission range indicator ground. The indications are separate from the transmission inputs to the vehicle control module.