Circuit Check Between VDC/TCS/ABS Control Unit and Steering Wheel Angle Sensor

WARNING: This page is about a different car, the 2002 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Check following terminals and connector for damage, bend and loose connection. (control unit-side, sensor-side and harness-side)
  - VDC/TCS/ABS control unit.
  - Steering wheel angle sensor.
  - Between VDC/TCS/ABS control unit and steering wheel angle sensor.
OK or NG
1. OK >> GO TO 2.
2. NG >> Repair terminal or connector.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect VDC/TCS/ABS control unit connector and harness connector E224.
2. Check continuity between VDC/TCS/ABS control unit harness connector E218 terminals 61 (LG/B), 63 (P/B) and harness connector E224 terminals 4 (LG/B), 3 (P/B).
  61 (LG/B) - 4 (LG/B) : Continuity should exist.
  
  63 (P/B) - 3 (P/B) : Continuity should exist.
  
  Fig 1: Checking Harness For Open Circuit terminal 61 - 4, 63 - 3
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK >> GO TO 3.
2. NG >> Repair harness.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector B263.
2. Check continuity between harness connector B204 terminals 4 (LG/B), 3 (P/B) and harness connector B263 terminals 9 (LG/B), 8 (P/B).
  4 (LG/B) - 9(LG/B) : Continuity should exist.
  
  3(P/B) - 8(P/B) : Continuity should exist.
  
  Fig 2: Checking Harness For Open Circuit terminal 4 - 9, 3 - 8
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK >> GO TO 4.
2. NG >> Repair harness.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector B6.
2. Check continuity between harness connector B63 terminals 9(LG/B), 8 (P/B) and harness connector B6 terminals 23(LG/B), 24 (P/B).
  9(LG/B) - 23(LG/B) : Continuity should exist.
  
  8(P/B) - 24(P/B) : Continuity should exist.
  
  Fig 3: Checking Harness For Open Circuit terminal 9 - 23, 8 - 24
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK >> GO TO 5.
2. NG >> Repair harness.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect steering wheel angle sensor connector.
2. Check continuity between harness connector M6 terminals 23(LG/B), 24 (P/B) and steering wheel angle sensor harness connector M52 terminals 4 (LG/B), 5 (P/B).
  23(LG/B) - 4(LG/B) : Continuity should exist.
  
  24(P/B) - 5(P/B) : Continuity should exist.
  
  Fig 4: Checking Harness For Open Circuit terminal 23 - 4, 24 - 5
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK >> Reconnect all connectors to perform "SELF-DIAG RESULTS" and "DATA MONITOR" for "ENGINE", "A/T", and "VDC". Refer to DTC U1000 CAN COMMUNICATION LINE for "ENGINE" and Refer to "DTC U1000 CAN COMMUNICATION LINE " for "A/T". Refer to INSPECTION 1 CAN COMMUNICATION LINE OR VDC/TCS/ABS CONTROL UNIT AND STEERING ANGLE SENSOR SYSTEM for "VDC".
2. NG >> Repair harness.