B3000 SE Regular Cab 2WD V6-3.0L OHV (2002)
Wheel Speed Sensor: Testing and Inspection
Rear Axle Speed Sensor
REAR AXLE SPEED SENSOR (4WABS) INSPECTION
1. Disconnect the rear axle speed sensor connector 0-421.
2. Measure the resistance between rear axle speed sensor pins. If the resistance value is between 800 and 2500 ohms, go to step 3. If the resistance
value is not between 800 and 2,500 ohms, install a new rear axle speed sensor.
3. Measure the resistance between one of the rear axle speed sensor pins and ground. If the resistance is greater than 10,000 ohms, go to step 4. If the
resistance is lower than 10,000 ohms, install a new rear axle speed sensor.
4. Measure the AC voltage between the rear axle speed sensor while rotating the rear wheel at approximately 8 km/h (5 mph). If the AC voltage is
approximately 650 mV RMS, the rear axle speed sensor is OK. If the AC voltage is not approximately 650 mV RMS, install a new rear axle speed
sensor.
