Grand Caravan L4-153 2.5L SOHC VIN K TBI (1988)
Vehicle Speed Sensor: Description and Operation
The distance sensor is located in the transaxle extension housing and signals vehicle motion to the SMEC by generating eight pulses per axle shaft
revolution. The SMEC uses this signal along with signals from the throttle position sensor to determine between a closed throttle deceleration and a
normal idle condition, thereby allowing the SMEC to maintain desired control of the AIS motor.
