Vehicle Speed Sensor Test

1. Remove instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Check continuity between reed switch terminal and ground terminal. See Fig 1 .
2. Ensure continuity pulses on and off 4 times per revolution of speedometer shaft connection. If continuity is not as specified, replace sensor.

Fig 1: Checking Speed Sensor Circuit

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA