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Home >> Infiniti >> 2007 >> M35 Base >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Body, Lock & Security System >> Power Door Lock System >> Door Key Cylinder Switch Check

Door Key Cylinder Switch Check

  1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL 

    With CONSULT-II 

    Check ("KEY CYL LK-SW", "KEY CYL UN-SW") in "DATA MONITOR" mode for "POWER DOOR ROCK SYSTEM" with CONSULT-II.

    MONITOR ITEM CHART

    Monitor item Condition
    KEY CYL LK-SW Lock : ON
    Neutral / Unlock : OFF
    KEY CYL UN-SW Unlock : ON
    Neutral / Lock : OFF
    Fig 1: CONSULT-II Display - DATA MONITOR
    G04918738

    Without CONSULT-II 

    1. Turn ignition switch OFF.
    2. Check voltage between power window main switch connector and ground.
      TERMINAL VOLTAGE CHART

      Terminals Key position Voltage (V) (Approx.)
      (+) (-)
      Power window main switch connector Terminal
      D10 4 Ground Lock 0
      Neutral / Unlock 5
      6 Unlock 0
      Neutral / Lock 5
      Fig 2: Checking Voltage Between Power Window Main Switch Connector Terminals 4, 6 And Ground
      G05212618

    OK or NG 

    OK: Key cylinder switch circuit is OK.

    NG: GO TO 2.

  2. CHECK HARNESS CONTINUITY 
    1. Disconnect power window main switch and front door key lock assembly (driver side) connector.
    2. Check continuity between power window main switch connector and front door lock assembly (driver side) connector.
      CONTINUITY CHART

      A B Continuity
      Power window main switch connector Terminal Front door lock assembly (driver side) connector Terminal
      D10 4 D14 6 Yes
      6 5

    OK or NG 

    OK: GO TO 3.

    NG: Repair or replace harness.

    Fig 3: Checking Continuity Between Power Window Main Switch Connector And Front Door Lock Assembly (Driver Side) Connector
    G05212619
  3. CHECK DOOR KEY CYLINDER SWITCH GROUND 

    Check continuity between front door lock assembly (driver side) connector ground.

    TERMINAL CONTINUITY CHART

    Front door lock assembly (driver side) connector Terminal Continuity
    D14 4 Ground Yes

    OK or NG 

    OK: GO TO 4.

    NG: Repair or replace harness.

    Fig 4: Checking Continuity Between Front Door Lock Assembly (Driver Side) Connector Terminal 4 And Ground
    G05212620
  4. CHECK DOOR KEY CYLINDER SWITCH 

    Check front door lock assembly (driver side).

    TERMINAL CONTINUITY CHART

    Terminal Key position Continuity
    Front door lock assembly (driver side)
    5 4 Unlock Yes
    Neutral / Lock No
    6 Lock Yes
    Neutral / Unlock No
    Fig 5: Checking Front Door Lock Assembly (Driver Side)
    G05212621

    OK or NG 

    OK: INSPECTION END.

    NG: Replace front door key cylinder (driver side) switch.