LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2020 >> QX80 Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Power Window Control System (Diagnostics)) >> Component Parts /Circuit Diagnosis >> Door Key Cylinder Switch >> Component Function Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Function Check

WARNING: This page is about a different car, the 2020 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL 
    1. Select "KEY CYL LK-SW" and "KEY CYL UN-SW" in "DATA MONITOR" mode of "DOOR LOCK" of "BCM" using CONSULT. Refer to Diagnosis Description .
    2. Check CONSULT indications under the following conditions.

      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

    Door key cylinder switch is OK.

    NO

    Refer to Diagnosis Procedure .