Horn Relay Inspection

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Horn. Lexus Is250, Is220D. Gse20 Ale20

  1. INSPECT FUSE (HORN)

  2. INSPECT HORN RELAY

Horn Relay -- Inspection



1. INSPECT FUSE (HORN)

  1. Check the resistance of the HORN fuse.

    Standard:
    Below 1 Ω


2. INSPECT HORN RELAY

  1. Remove the engine room R/B and J/B (horn relay).



  1. Measure the resistance according to the value(s) in the table below.


    Lexus Is250, Is220D. Gse20 Ale20.Horn.Horn System.Horn Relay Inspection

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    2E-2 - 2G-2
    		Always
    		10 kΩ or higher
    2E-2 - 2G-2
    		When battery voltage is applied to terminals 2E-2 and 2F-2
    		Below 1 Ω