Operational Testing

3.Reconnect the connector to the sensor lead by plugging it into the appropriate socket on the pigtail harness, and pushing until the lock tab snaps into place.

NOTE: It is important for the wheel bearings to be adjusted per the manufacturer's recommendations, to ensure that the antilock function does not shut down as a result of excessive wheel end play.

To test sensor operation, one of two tests can be done.

TEST 1

Drive the vehicle in a safe area to a minimum speed of 15 mph. Be sure to apply the vehicle brakes several times. Then stop the vehicle and check the LED display on the Bendix controller. If the dash light is out and the sensor LED(s) are not illuminated, the sensor is installed properly.

TEST 2

Disconnect the connector from the sensor's socket or from the attached lead. Raise the vehicle wheel so it rotates easily. Connect a volt-Ohm meter (set to read Volts AC) to the pins on the sensor or lead and spin the wheel. Output voltage should read greater than .800 AC. If the wheel is spun at 1 revolution per second (about 7mph) the reading should be greater than 1.0 volts AC.

If the sensor fails to operate as described, check the wiring from the controller to the sensor. Make sure all connectors are properly and tightly installed. Check for frayed or damaged wires and check and/or reset the sensor air gap (distance from sensor tip to exciter ring) as described in this manual. For additional troubleshooting information, see the troubleshooting procedure for the specific antilock system in use.