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Home >> Nissan-Datsun >> 2007 >> Sentra SE-R >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Continuously Variable Transmission (CVT) >> CVT Shift Lock System >> Diagnostic Procedure
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Diagnostic Procedure

SYMPTOM 1: 

SYMPTOM 2: 

  1. CHECK KEY INTERLOCK CABLE 

    Check key interlock cable for damage.

    OK or NG 

    OK: GO TO 2.

    NG: Repair key interlock cable. Refer to "REMOVAL AND INSTALLATION ".

  2. CHECK CVT POSITION 

    Check CVT position. Refer to "CHECKING OF CVT POSITION ".

    OK or NG 

    OK: GO TO 3.

    NG: Adjust control cable. Refer to "ADJUSTMENT OF CVT POSITION ".

  3. CHECK SHIFT LOCK SOLENOID AND PARK POSITION SWITCH 
    1. Turn ignition switch ON. (Do not start engine.)
    2. Selector lever is set in "P" position.
    3. Check operation sound.
      BRAKE PEDAL CONDITION CHART

      Condition Brake pedal Operation sound
      When ignition switch is turned to ON position and selector lever is set in "P" position. Depressed Yes
      Released No

    OK or NG 

    OK: INSPECTION END 

    NG: GO TO 4.

  4. CHECK POWER SOURCE 

    Check voltage between CVT device harness connector M38 terminal 3 and ground.

    OK or NG 

    OK: GO TO  6.

    NG: GO TO 5.

    Fig 1: Checking Voltage Between CVT Device Harness Connector M38 Terminal 3 And Ground
    G04927097
  5. DETECT MALFUNCTIONING ITEM 

    Check the following. If any items are damaged, repair or replace damaged parts.

    • Harness for short or open between ignition switch and CVT device harness connector
    • 10A fuse [No.12, located in the fuse block (J/B)]
    • Ignition switch, Refer to "POWER SUPPLY ROUTING CIRCUIT ".

    OK or NG 

    OK: INSPECTION END 

    NG: Repair or replace damaged parts.

  6. CHECK STOP LAMP SWITCH POWER SOURCE 
    1. Turn ignition switch OFF.
    2. Disconnect stop lamp switch harness connector M38.
    3. Turn ignition switch ON.
    4. Check voltage between stop lamp switch harness connector E60 terminal 3 and ground.

      3 - ground : Battery voltage 

    OK or NG 

    OK: GO TO  8.

    NG: GO TO 7.

    Fig 2: Checking Voltage Between Stop Lamp Switch Harness Connector E60 Terminal 3 And Ground
    G04927098
  7. CHECK STOP LAMP SWITCH SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect CVT device harness connector E60.
    3. Check continuity between stop lamp switch harness connector E60 (B) terminal 3 and CVT device harness connector M38 (A) terminal 4.

      Continuity should exist. 

    OK or NG 

    OK: Replace shift lock solenoid assembly.

    NG: Repair or replace harness as necessary.

    Fig 3: Checking Continuity Between Stop Lamp Switch Harness Connector E60 (B) Terminal 3 And CVT Connector M38 (A) Terminal 4
    G04927099
  8. CHECK GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Check continuity between stop lamp switch harness connector E60 terminal 4 and ground.

      Continuity should exist. 

    OK or NG 

    OK: GO TO 9.

    NG: Repair or replace harness as necessary.

    Fig 4: Checking Continuity Between Stop Lamp Switch Harness Connector E60 Terminal 4 And Ground
    G04927100
  9. CHECK STOP LAMP SWITCH 

    Check continuity between stop lamp switch harness connector terminals 3 and 4.

    CONTINUITY REFERENCE CHART

    Condition Continuity
    When brake pedal is depressed Yes
    When brake pedal is released No

    Check stop lamp switch after adjusting brake pedal.  Refer to "BRAKE PEDAL ".

    OK or NG 

    OK: INSPECTION END. 

    NG: Replace stop lamp switch.

    Fig 5: Checking Continuity Between Stop Lamp Switch Harness Connector Terminals 3 And 4
    G04875881