LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2012 >> Maxima SV >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System >> DTC/Circuit Diagnosis >> Door Key Cylinder Switch >> Component Function Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Function Check

  1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

    Check KEY CYL UN-SW, KEY CYL UN-SW in "DATA MONITOR" mode for "POWER DOOR LOCK SYSTEM" with CONSULT. Refer to "DOOR LOCK: CONSULT FUNCTION (BCM - DOOR LOCK) ".

    Monitor item Condition
    KEY CYL LK-SW Lock : ON
    Neutral / Unlock : OFF
    KEY CYL UN-SW Unlock : ON
    Neutral / Lock : OFF

    Is the inspection result normal? 

    YES: Key cylinder switch is OK.

    NO: Refer to "DIAGNOSIS PROCEDURE ".