Diagnostic Procedure

Malfunction code No. 71 

1. INSPECTION START 
   Fig 1: Inspecting ABS Actuator & Electric Unit Power Supply & Ground Circuit

   Courtesy of NISSAN MOTOR CO., U.S.A.
   1. GO TO 2.
2. CHECK CONNECTOR 
   1. Disconnect ABS actuator and electric unit connector. Check terminals for damage or loose connections. Then reconnect connectors.
   2. Carry out self-diagnosis again.

   Does warning lamp activate again? 

   1. Yes : GO TO 3.
   2. No : INSPECTION END 
3. CHECK ABS ACTUATOR AND ELECTRIC UNIT POWER SUPPLY CIRCUIT 

   Check voltage. Refer to step  3 CHECK ABS ACTUATOR AND ELECTRIC UNIT POWER SUPPLY CIRCUIT.

   Does battery voltage exist when ignition switch is turned ON? 

   1. Yes : GO TO 4.
   2. No : Repair.
4. CHECK WARNING LAMP INDICATION 

   Does warning lamp indicate code No. 71 again?

   1. Yes : Replace ABS actuator and electric unit.
   2. No : Inspect the system according to the code No.