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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> External Pages >> Different car >> Section 253 (Body, Lock & Security System) >> Vehicle Security (Theft Warning) System >> Diagnostic Procedure 4
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Diagnostic Procedure 4

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

VEHICLE SECURITY HORN ALARM CHECK

  1. CHECK HORN OPERATION 

    Check if horn sounds with horn switch.

    Does horn operate?

    • Yes: Check harness for open or short between IPDM E/R and horn relay.
    • No: Check horn circuit. Refer to "HORN ".
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