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Home >> Infiniti >> 2021 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Security Control System (Diagnostics) >> Component Parts/Circuit Diagnosis >> Horn Function >> Component Inspection
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Component Inspection

  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.

    (+)

    (-)

    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.