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Home >> Nissan-Datsun >> 2007 >> Sentra SE-R >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Continuously Variable Transmission (CVT) >> Overdrive Control Switch >> Diagnostic Procedure
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Diagnostic Procedure

  1. CHECK CAN COMMUNICATION LINE 

    Perform the self-diagnosis check. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

    Is any malfunction of the "U1000 CAN COMM CIRCUIT" indicated in the results? 

    YES: Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE ".

    NO: GO TO 2.

  2. CHECK OVERDRIVE CONTROL SWITCH SIGNAL 

    With CONSULT-III 

    1. Turn ignition switch ON.
    2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
    3. Read out ON/OFF switching action of the "SPORT MODE SW".
      ITEM NAME CONDITION CHART

      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  6.

  5. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT WITH INTELLIGENT KEY 
    1. Turn ignition switch OFF.
    2. Disconnect CVT device connector and combination meter connector.
    3. Check continuity between CVT device harness connector (A) terminal and combination meter harness connector (B) terminal.
      CONTINUITY REFERENCE CHART

      Item Connector Terminal Continuity
      CVT device harness connector M38 1 Yes
      Combination meter harness connector M24 29
      Fig 1: Checking Continuity Between CVT Device Harness Connector (A) Terminal And Combination Meter Harness Connector (B) Terminal
      G04927080
    4. Check continuity between CVT device harness connector terminal and ground.
      CONTINUITY REFERENCE CHART

      Item Connector Terminal Continuity
      CVT device harness connector M38 2 - ground Yes
      Fig 2: Checking Continuity Between CVT Device Harness Connector Terminal And Ground
      G04927081
    5. If OK, check harness for short to ground and short to power.
    6. Reinstall any part removed.

    OK or NG 

    OK: INSPECTION END 

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

  6. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT WITHOUT INTELLIGENT KEY 
    1. Turn ignition switch OFF.
    2. Disconnect CVT device connector and combination meter connector.
    3. Check continuity between CVT device harness connector (A) terminal and combination meter harness connector (B) terminal.
      CONTINUITY REFERENCE CHART

      Item Connector Terminal Continuity
      CVT device harness connector M38 1 Yes
      Combination meter harness connector M24 29
      Fig 3: Checking Continuity Between CVT Device Harness Connector (A) Terminal And Combination Meter Harness Connector (B) Terminal
      G04927082
    4. Check continuity between CVT device harness connector terminal and ground.
      CONTINUITY REFERENCE CHART

      Item Connector Terminal Continuity
      CVT device harness connector M38 2 - ground Yes
    5. If OK, check harness for short to ground and short to power.
    6. Reinstall any part removed.

    OK or NG 

    OK: INSPECTION END 

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

    Fig 4: Checking Continuity Between CVT Device Harness Connector Terminal And Ground
    G04927083
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