Vehicle Speed Sensor

Fig 25 Park/Neutral Switch -- 4 Speed Electronic Automatic Transaxle -- Typical:

The transaxle output speed sensor supplies the vehicle speed and distance inputs to the PCM.

The speed and distance signals, along with a closed throttle signal from the TPS, determine if a closed throttle deceleration or normal idle condition (vehicle stopped) exists.
- Under deceleration conditions, the PCM adjusts the idle air control motor to maintain a desired MAP value.
- Under idle conditions, the PCM adjusts the idle air control motor to maintain a desired engine speed.

The output speed sensor is located on the side of the transaxle (Fig. 25).