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Home >> Infiniti >> 2007 >> M45 >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Body, Lock & Security System >> Intelligent Key System/Engine Start Function >> DTC B2555: Stop Lamp Circuit >> Diagnostic Procedure
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Diagnostic Procedure

  1. CHECK STOP LAMP SIGNAL 

    With CONSULT-II 

    Check ("STOP LAMP SW") in DATA MONITOR mode with CONSULT-II.

    When depressing the break pedal 

    STOP LAMP SW : ON 

    Fig 1: CONSULT-II Display - Data Monitor
    G05212331

    Without CONSULT-II 

    Check voltage between Intelligent Key unit connector and ground.

    TERMINAL VOLTAGE CHART

    Terminals Voltage (V) (Approx.)
    (+) (-)
    Intelligent Key unit connector Terminal
    M32 63 Ground Battery voltage

    OK or NG 

    OK: XXX

    NG: Check the following.

    Fig 2: Checking Voltage Between Intelligent Key Unit Connector Terminal 63 And Ground
    G05212332
    • 10A fuse [No.20, located in the fuse block (J/B)]
    • Harness for open or short between fuse block and Intelligent Key unit.
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