1.CHECK CONNECTOR

1. Turn the ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector.
3. Disconnect steering angle sensor harness connector.
4. Check terminal for deformation, disconnection, looseness, etc.

Is the inspection result normal?
YES>>GO TO 2.
NO>>Repair or replace error-detected parts.
2.CHECK STEERING ANGLE SENSOR POWER SUPPLY

1. Check the voltage between steering angle sensor harness connector and ground.

   Steering angle sensor | — | Voltage
   Connector | Terminal
   M37 | 4 | Ground | Approx. 0 V

2. Turn ignition switch ON.
   ■ CAUTION ■
   Never start the engine.
3. Check the voltage between steering angle sensor harness connector and ground.

   Steering angle sensor | — | Voltage
   Connector | Terminal
   M37 | 4 | Ground | Battery voltage

Is the inspection result normal?
YES>>GO TO 4.
NO>>GO TO 3.
3.CHECK STEERING ANGLE SENSOR POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF.
2. Check 10 A fuse (#45).
3. Disconnect IPDM E/R harness connector.
4. Check the continuity between steering angle sensor harness connector and IPDM E/R harness connector.

   Steering angle sensor | IPDM E/R | Continuity
   Connector | Terminal | Connector | Terminal
   M37 | 4 | E5 | 25 | Existed

Is the inspection result normal?
YES>>Perform the trouble diagnosis for ignition power supply circuit. Refer to Wiring Diagram - IGNITION POWER SUPPLY -.
NO>>Repair or replace error-detected parts.
4.CHECK STEERING ANGLE SENSOR GROUND
Check the continuity between steering angle sensor harness connector and ground.

Steering angle sensor | — | Continuity
Connector | Terminal
M37 | 1 | Ground | Existed

Is the inspection result normal?
YES>>GO TO 5.
NO>>Repair or replace error-detected parts.
5.CHECK DATA LINE
Check “STRG BRANCH LINE CIRCUIT”. Refer to Diagnosis Procedure.
Is the inspection result normal?
YES>>Replace ABS actuator and electric unit (control unit). Refer to Exploded View (GT-R certified NISSAN dealer).
NO>>Repair or replace error-detected parts.