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Home >> Infiniti >> 2009 >> M45 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Body, Lock & Security System >> Service Information >> 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-III 

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

    When depressing the break pedal 

    STOP LAMP SW: ON 

    Without CONSULT-III 

    Check voltage between Intelligent Key unit connector and ground.

    VOLTAGE REFERENCE CHART

    Terminals Voltage (V) (Approx.)
    (+) (-)
    Intelligent Key unit connector Terminal
    M32 63 Ground Battery voltage
    Fig 1: Checking Voltage Between Intelligent Key Unit Connector And Ground
    G05212332Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Check the condition of harness and connector, It is OK, check the self-diagnosis results using CONSULT-III again.

    NG: Check the following.

    • 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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