■ CAUTION ■
Never check between wheel sensor terminals.
 1.CHECK TIRES
Check air pressure, wear and size. Refer to Tire. Is the inspection result normal? YES >>GO TO 2. NO >>Repair or replace error-detected parts.
2.CHECK SENSOR AND SENSOR ROTOR
- Check sensor rotor for damage.
- Check wheel sensor for damage, disconnection, or looseness.
Is the inspection result normal?
YES >>GO TO 3. NO >>Repair wheel sensor mount or replace sensor rotor. Then perform the self-diagnosis.
3.CHECK CONNECTOR
- Turn the ignition switch OFF.
- Disconnect ABS actuator and electric unit (control unit) connector.
- Disconnect malfunctioning wheel sensor connector.
- Check terminal to see if it is deformed, disconnected, loose, etc.
Is the inspection result normal?
YES >>GO TO 4. NO >>Repair or replace error-detected parts.
4.CHECK WHEEL SENSOR HARNESS
- Check the continuity between the ABS actuator and electric unit (control unit) harness connector and wheel sensor harness connector. (Also check continuity when steering wheel is turned right and left and when sensor harness inside the wheel house is moved)
Measurement terminal for power supply circuitABS actuator and electric unit (control unit)
| Wheel sensor
| Continuity
| Connector
| Terminal
| Connector
| Terminal
| E41
| 34
| E60 (Front RH)
| 1
| Existed
| 45
| E27 (Front LH)
| 43
| B249
| Rear RH
| 3
| 36
| Rear LH
| 1
|
Measurement terminal for signal circuitABS actuator and electric unit (control unit)
| Wheel sensor
| Continuity
| Connector
| Terminal
| Connector
| Terminal
| E41
| 33
| E60 (Front RH)
| 2
| Existed
| 46
| E27 (Front LH)
| 42
| B249
| Rear RH
| 4
| 37
| Rear LH
| 2
|
- Check the continuity between the ABS actuator and electric unit (control unit) harness connector.
ABS actuator and electric unit (control unit)
| Continuity
| Connector
| Terminal
| Connector
| Terminal
| E41
| 34, 33
| E41
| 16, 47
| Not existed
| 45, 46
| 43, 42
| 36, 37
|
Is the inspection result normal?
YES >>GO TO 5. NO >>Repair or replace error-detected parts.
5.CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT
- Connect ABS actuator and electric unit (control unit) connector.
- Turn the ignition switch ON.
■ CAUTION ■ Never start the engine.
- Check the voltage between wheel sensor harness connector and ground.
Wheel sensor
| —
| Voltage
| Connector
| Terminal
| E60 (Front RH)
| 1
| Ground
| 8 V or more
| E27 (Front LH)
| B249
| Rear RH
| 3
| Rear LH
| 1
|
Is the inspection result normal?
YES >>GO TO 6. NO >>Repair or replace error-detected parts.
6.CHECK DATA MONITOR
- Turn the ignition switch OFF.
- Connect each wheel sensor connector.
- Check wheel sensor signal. Refer to Component Inspection (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES >>Replace ABS actuator and electric unit (control unit). NO >>Repair or replace error-detected parts.
|