Inspection 2 Motor Power Supply System

1. Turn ignition switch OFF, disconnect RAS control unit harness connector and RAS motor harness connector, and check terminal for deformation, disconnection, looseness, etc.
2. Reconnect harness connector securely, and perform self-diagnosis.

   With CONSULT-III

   SELF-DIAGNOSIS RESULTS REFERENCE
   
   

   Self-diagnosis results
   MOTOR VOLTAGE [LOW VOLTAGE] [C1911]
   MOTOR VOLTAGE [BAD OBSTRCT] [C1912]

   Without CONSULT-III

   DTC REFERENCE TABLE
   
   

   DTC (warning lamp blinks)
   12

   Is above displayed on self-diagnosis display? 

   YES: GO TO  2.

   NO: Connector terminal connection is loose, damaged, open, or shorted. Repair or replace the terminal.

1. Turn ignition switch OFF, and disconnect RAS motor relay harness connector B480.
2. Check voltage between RAS motor relay harness connector B480 and ground.

   Terminal 3 - Ground : Battery voltage (Approx. 12 V) 

   Fig 1: Checking Voltage Between RAS Motor Relay Harness Connector B480 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

   OK or NG 

   OK: GO TO  3.

   NG: RAS motor relay power supply circuit open or shorted. Repair or replace power supply circuit and fuse.

1. Disconnect RAS motor relay harness connector B480 and RAS control unit harness connector B476.
2. Check continuity between RAS motor relay harness connector B480 and RAS control unit harness connector B476.

   Terminal 5 - 37: Continuity should exist  .

   Terminal 1 - 25: Continuity should exist  .

   Fig 2: Checking Continuity Between RAS Motor Relay Harness Connector B480 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between RAS motor relay harness connector B480 and ground.

   2 - Ground: Continuity should exist  .

   OK or NG 

   OK: GO TO  4.

   NG: RAS motor relay harness open or shorted. Repair or replace applicable malfunctioning harness.

Check the resistance between RAS motor relay connector.

Terminal 1 - 2: Approx. 74 Ω 

Fig 3: Checking Resistance Between RAS Motor Relay Connector B480

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: GO TO  5.

NG: RAS motor relay malfunction (replacement)

1. Connect RAS control unit harness connector B476 and RAS motor relay harness connector B480.
2. Check voltage between RAS motor relay harness connector B480 and ground.

   1 - Ground 

   Ignition switch ON: Battery voltage (Approx. 12 V) 

   Ignition switch OFF: Approx. 0 V 

   Fig 4: Checking RAS Motor Relay Separately From Other Parts

   Courtesy of NISSAN MOTOR CO., U.S.A.

   OK or NG 

   OK: Check RAS motor relay separately from other parts. Refer to COMPONENT INSPECTION .

   NG: RAS control unit malfunction (replacement).