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Home >> Nissan-Datsun >> 2012 >> Sentra SE-R >> Repair and Diagnosis >> Transmission >> Automatic Transmission (CVT) >> Service Information >> Overdrive Control Switch >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK CAN COMMUNICATION LINE

    Perform the self-diagnosis check. Refer to "CONSULT FUNCTION (TRANSMISSION) ".

    Is any malfunction of the "U1000" indicated in the results? 

    YES: Check CAN communication line. Refer to U1000 CAN COMM CIRCUIT .

    NO: GO TO 2.

  2. CHECK OVERDRIVE CONTROL SWITCH SIGNAL

    With CONSULT 

    1. Turn ignition switch ON.
    2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT.
    3. Read out ON/OFF switching action of the "SPORT MODE SW".
    Item name Condition Display value
    SPORT MODE SW While pushing overdrive cancel switch ON
    Other conditions OFF

    OK or NG 

    OK: INSPECTION END 

    NG: GO TO 3.

  3. CHECK OVERDRIVE CONTROL SWITCH

    Check overdrive control switch. Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 4.

    NG: Repair or replace damaged parts.

  4. CHECK SELF-DIAGNOSTIC RESULTS (COMBINATION METER)

    Perform self-diagnosis check. Refer to , "SELF-DIAGNOSIS MODE OF COMBINATION METER ".

    Is any malfunction detected by self-diagnostic? 

    YES: Check the malfunctioning system.

    NO - 1 >> With Intelligent Key: GO TO 5.

    NO - 2 >> Without Intelligent Key: GO TO  7.

  5. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT WITH INTELLIGENT KEY
    1. Turn ignition switch OFF.
    2. Disconnect CVT shift selector connector and combination meter connector.
    3. Check continuity between CVT shift selector harness connector (A) terminal and combination meter harness connector (B) terminal.
      Item Connector Terminal Continuity
      CVT shift selector harness connector M38 1 Yes
      Combination meter harness connector M24 29
      Fig 1: Checking Overdrive Control Switch Circuit With Intelligent Key
      G08180789Courtesy of NISSAN NORTH AMERICA, INC.
    4. Check continuity between CVT shift selector harness connector (A) terminal and ground.
    Item Connector Terminal Continuity
    CVT shift selector harness connector M38 1 - ground No

    OK or NG 

    OK: GO TO 6.

    NG: Repair open circuit or short to ground in harness or connectors.

  6. CHECK OVERDRIVE CONTROL SWITCH GROUND CIRCUIT WITH INTELLIGENT KEY

    Check continuity between CVT shift selector harness connector terminal and ground.

    Item Connector Terminal Continuity
    CVT shift selector harness connector M38 2 - ground Yes
    Fig 2: Checking Overdrive Control Switch Ground Circuit With Intelligent Key
    G04927081Courtesy of NISSAN NORTH AMERICA, INC.

    OK or NG 

    OK: INSPECTION END 

    NG: Repair open circuit in harness or connectors.

  7. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT WITHOUT INTELLIGENT KEY
    1. Turn ignition switch OFF.
    2. Disconnect CVT shift selector connector and combination meter connector.
    3. Check continuity between CVT shift selector harness connector (A) terminal and combination meter harness connector (B) terminal.
      Item Connector Terminal Continuity
      CVT shift selector harness connector M38 1 Yes
      Combination meter harness connector M24 29
      Fig 3: Checking Overdrive Control Switch Circuit Without Intelligent Key
      G08180791Courtesy of NISSAN NORTH AMERICA, INC.
    4. Check continuity between CVT shift selector harness connector terminal and ground.
    Item Connector Terminal Continuity
    CVT shift selector harness connector M38 1 - ground Yes

    OK or NG 

    OK: GO TO  6.

    NG: Repair open circuit or short to ground in harness or connectors.

  8. CHECK OVERDRIVE CONTROL SWITCH GROUND CIRCUIT WITHOUT INTELLIGENT KEY

    Check continuity between CVT shift selector harness connector terminal and ground.

    Item Connector Terminal Continuity
    CVT shift selector harness connector M38 2 - ground Yes
    Fig 4: Checking Overdrive Control Switch Ground Circuit Without Intelligent Key
    G04927083Courtesy of NISSAN NORTH AMERICA, INC.

    OK or NG 

    OK: INSPECTION END 

    NG: Repair open circuit in harness or connectors.

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