LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2011 >> M56 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 26 (Security Control System) >> DTC/Circuit Diagnosis >> Horn Function >> Component Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Inspection

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK VEHICLE SECURITY HORN RELAY
    1. Turn ignition switch OFF.
    2. Disconnect vehicle security horn relay.
    3. Check voltage between vehicle security horn relay terminal and ground under the following conditions.
      VOLTAGE SPECIFICATION

      (+) (-) Condition Voltage (V) (Approx.)
      Vehicle security horn relay
      Terminal
      2 Ground 12 V direct current supply between terminals 1 and 3 12
      No current supply 0

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace vehicle security horn relay.