Inspection 8 Abs Motor And Motor Relay System

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.

Fig 1: Identifying Self-Diagnosis Results
Courtesy of NISSAN MOTOR CO., U.S.A.

Is the above displayed in the self-diagnosis display items?
1. YES: GO TO 2.
2. NO: Inspection End
CONNECTOR INSPECTION
1. Disconnect the VDC relay box connector E55, E56, E57 and VDC/TCS/ABS control unit connector and check the terminals for deformation, disconnection, looseness, and so on. If there is an error, repair or replace the terminal.
2. Securely reconnect the connectors and conduct self-diagnosis.
OK or NG
1. OK: The connector terminal contact is loose, damaged, open or shorted.
2. NG: GO TO 3.
ABS MOTOR AND MOTOR RELAY POWER SYSTEM INSPECTION
1. Disconnect the VDC relay box connectors.
2. Check the voltage between the VDC relay box harness connector E57 terminal 10(W/G) and the ground.
  
  Fig 2: Checking VDC Relay Box Harness Voltage
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Specifying VDC Relay Box Harness Voltage
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 4.
2. NG: The circuit between the battery and the VDC relay box terminal 10 is open or shorted. Repair the circuit.
ABS MOTOR AND MOTOR RELAY HARNESS INSPECTION
1. Turn ignition switch OFF and disconnect the VDC/TCS/ABS control unit connector and VDC relay box harness connector.
2. Check the continuity between the VDC/TCS/ABS control unit harness connector and the VDC relay box harness connector.
  
  Fig 4: Checking VDC Relay Box Harness Voltage
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 5: Checking Continuity Between VDC/TCS/ABS & VDC Relay Box
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check if the actuator motor operates when a 12V voltage is applied to the VDC relay box harness connector terminal 15.
  NOTE: Operate the actuator motor for 4 seconds or less to prevent heat generation.
  
  Fig 6: Checking Actuator Motor & VDC Relay Box Voltage
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 5.
2. NG: The actuator motor or actuator motor circuit open or short in harness. Repair or replace the actuator motor or actuator motor circuit harness.
ABS MOTOR RELAY INSPECTION
ABS motor relay independent inspection. Refer to INSPECTION 8 ABS MOTOR AND MOTOR RELAY SYSTEM .

OK or NG
1. OK: Replace VDC actuator assembly.
2. NG: Replace the VDC relay box.