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Inspection Between TCM and Data Link Connector Circuit

WARNING: This page is about a different car, the 2006 Nissan Titan. 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
      • Harness connector B69
      • Harness connector M40

    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).
      Fig 1: Checking Continuity Between A/T Assembly Harness Connector (A) And Harness Connector (B)
      G04189550Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY REFERENCE

      A B Continuity
      Connector Terminal Connector Terminal
      F9 3 F14 5 Yes
      8 15 Yes

    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).
      Fig 2: Checking Continuity Between Harness Connector (A) And Harness Connector (B)
      G04189551Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY REFERENCE

      A B Continuity
      Connector Terminal Connector Terminal
      E5 5 E34 24 Yes
      15 23 Yes

    OK or NG 

    OK: GO TO 4.

    NG: Repair harness.

  4. CHECK HARNESS FOR OPEN CIRCUIT 
    1. Disconnect harness connector B69.
    2. Check continuity between harness connector (A) and harness connector (B).
      Fig 3: Checking Continuity Between Harness Connector (A) And Harness Connector (B)
      G04189552Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY REFERENCE

      A B Continuity
      Connector Terminal Connector Terminal
      B40 24 B69 51J Yes
      23 52J Yes

    OK or NG 

    OK: GO TO 5.

    NG: Repair harness.

  5. CHECK HARNESS FOR OPEN CIRCUIT 

    Check continuity between harness connector (A) and data link connector (B).

    Fig 4: Checking Continuity Between Harness Connector (A) And Data Link Connector (B)
    G04189553Courtesy of NISSAN MOTOR CO., U.S.A.
    CONTINUITY REFERENCE

    A B Continuity
    Connector Terminal Connector Terminal
    M40 51J M22 6 Yes
    52J 14 Yes

    OK or NG 

    OK: Connect all the connectors and diagnose again. Refer to "TROUBLE DIAGNOSES WORK FLOW ".

    NG: Repair harness.

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