Circuit Check Between BCM and ABS Actuator and Electric Unit (Control Unit)

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check following terminals and connector for damage, bent or loose connection (control module-side, control unit-side and harness-side).
- BCM.
- ABS actuator and electric unit (control unit).
- Between BCM and ABS actuator and electric unit (control unit).
OK or NG
1. OK: GO TO 2.
2. NG: Repair terminal or connector.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect BCM connector and harness connector M7.
2. Check continuity between BCM harness connector M18 terminals 70 (L), 71 (Y) and harness connector M7 terminals 10 (L), 9 (Y).
  70 (L) - 10 (L) : Continuity should exist.
  
  71 (Y) - 9 (Y) : Continuity should exist.
OK or NG
1. OK: GO TO 3.
2. NG: Repair harness.
Fig 1: Checking Continuity Between BCM Harness Connector M18 Terminals And Harness Connector M7 Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector E27.
2. Check continuity between harness connector E28 terminals 10 (L), 9 (Y) and harness connector E27 terminals 11A (L), 12A (Y).
  10 (L) - 11A (L) : Continuity should exist.
  
  9 (Y) - 12A (Y) : Continuity should exist.
OK or NG
1. OK: GO TO 4.
2. NG: Repair harness.
Fig 2: Checking Continuity Between Harness Connector E28 Terminals And Harness Connector E27 Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity between harness connector E130 terminals 11A (L), 12A (Y) and ABS actuator and electric unit (control unit) connector harness connector E125 terminals 30 (L), 29 (Y).
  11A (L) - 30 (L) : Continuity should exist.
  
  12A (Y) - 29 (Y) : Continuity should exist.
OK or NG
1. OK: Reconnect all connectors to perform "SELF-DIAG RESULTS" and "DATA MONITOR" for "ENGINE""A/T""BCM", and "ABS". Refer to CONSULT-II for "ENGINE" and CONSULT-II for "A/T". Refer to CONSULT-II for "BCM". Refer to CONSULT-II FUNCTION for "ABS".
2. NG: Repair harness.
Fig 3: Checking Continuity Between Harness Connector E130 terminals And ABS Actuator And Electric Unit
Courtesy of NISSAN MOTOR CO., U.S.A.