Inspection Procedure

CHECK TIRE
Check air pressure, wear and size.

Are air pressure, wear, and size within the standard values?
1. YES: GO TO 2.
2. NO: Adjust air pressure, or replace tire.
CHECK SENSOR AND SENSOR ROTOR
- Check the condition of the sensor mount (for looseness, etc.).
- Check the surface of front sensor rotor for damage. Refer to "SENSOR ROTOR ".
- Check rear sensor rotor for damage. Refer to "SENSOR ROTOR ".
OK or NG
1. OK: GO TO 3.
2. NG: Repair sensor mount or replace sensor rotor.

CHECK SELF-DIAGNOSTIC RESULTS

Check the self-diagnostic results.

SELF-DIAGNOSTIC RESULTS

Self-diagnosis results
FR RH SENSOR-1,-2
FR LH SENSOR-1,-2
RR RH SENSOR-1,-2
RR LH SENSOR -1,-2

Is above displayed in the self-diagnosis display item?

YES: GO TO 4.
NO: INSPECTION END.

CHECK CONNECTOR
1. Disconnect VDC/TCS/ABS control unit connector and malfunctioning wheel sensor connector. Check terminal for deformation, open circuit, poor contact, etc., and repair or replace if any malfunctioning condition is found.
2. Reconnect connectors, drive at a speed of approximately 30 km/h (19 MPH) or more for approximately 1 minute, and perform self-diagnosis.
OK or NG
1. OK: Connector terminal contact is loose, damaged, open or shorted.
2. NG: GO TO 5.
CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel sensor connector and VDC/TCS/ABS control unit harness connector.
2. Check continuity between terminals. (Also check the continuity when steering wheel is turned right and left and when sensor harness inside wheel well is moved.)
  
  Fig 1: Checking Continuity Between Wheel Sensors Connector Terminals
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Wheel Sensor Harness Continuity Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  1. Power system: Continuity should exist.
  2. Signal system: Continuity should exist.
  3. Ground system: Continuity should not exist.
OK or NG
1. OK: GO TO 6.
2. NG: Repair harness and connector between VDC/TCS/ABS control unit and wheel sensor.
CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT
1. Check resistance value of malfunctioning wheel sensor.
  
  Fig 3: Wheel Sensor Power Supply Circuit Resistance Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Checking Wheel Sensor Power Supply Circuit Resistance
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace wheel sensor.
2. NG: Replace VDC/TCS/ABS control unit.