Lexus IS250 · Service Manual BODY ELECTRICAL

INSPECTION

Inspection


INSPECT FUSE (HORN)
  1. Check the resistance of the HORN fuse.

    Standard:
    Below 1 Ω


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.

    B110916E01

    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

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