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Home >> Infiniti >> 2006 >> M35 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (LAN System) >> Trouble Diagnosis For System >> Inspection Between TCM and Driver Seat Control Unit Circuit
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Inspection Between TCM and Driver Seat Control Unit Circuit

WARNING: This page is about a different car, the 2006 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONNECTOR 
    1. Turn ignition switch OFF.
    2. Disconnect the battery cable from the negative terminal.
    3. Check following terminals and connectors for damage, bend and loose connection (connector side and harness side).
      • Harness connector F14
      • Harness connector E5
      • Harness connector E34
      • Harness connector B40

    OK or NG 

    • OK : GO TO 2.
    • NG : Repair terminal or connector.
  2. CHECK HARNESS FOR OPEN CIRCUIT 
    1. Disconnect A/T assembly connector and harness connector F14.
    2. Check continuity between A/T assembly harness connector (A) and harness connector (B).
      TERMINAL CONTINUITY CHART

      A B Continuity
      Connector Terminal Connector Terminal
      F9 3 F14 5 Yes
      8 15 Yes
      Fig 1: Identifying Continuity Between A/T Assembly Harness Connector (A) And Harness Connector (B)
      G04136782Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    • OK : GO TO 3.
    • NG : Repair harness.
  3. CHECK HARNESS FOR OPEN CIRCUIT 
    1. Disconnect harness connector E34.
    2. Check continuity between harness connector (A) and harness connector (B).
      TERMINAL CONTINUITY CHART

      A B Continuity
      Connector Terminal Connector Terminal
      E5 5 E34 24 Yes
      15 23 Yes
      Fig 2: Identifying Continuity Between Harness Connector (A) And Harness Connector (B)
      G04136783Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    • OK : GO TO 4.
    • NG : Repair harness.
  4. CHECK HARNESS FOR OPEN CIRCUIT 
    1. Disconnect harness connector B37.
    2. Check continuity between harness connector (A) and harness connector (B).
      TERMINAL CONTINUITY CHART

      A B Continuity
      Connector Terminal Connector Terminal
      B40 24 B37 15 Yes
      23 14 Yes
      Fig 3: Identifying Continuity Between Harness Connector (A) And Harness Connector (B)
      G04136784Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG