Lexus IS250 IS220d GSE20 ALE20 - HORN

HORN RELAY - INSPECTION

1. INSPECT FUSE (HORN)

Check the resistance of the HORN fuse.

  • Standard:
  • Below 1 Ω
2. INSPECT HORN RELAY

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

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

Horn Relay - Inspection. HORN. Lexus IS250 IS220d GSE20 ALE20

  • Standard resistance:
  • Tester ConnectionConditionSpecified Condition
    2E-2 - 2G-2Always10 kΩ or higher
    2E-2 - 2G-2When battery voltage is applied to terminals 2E-2 and 2F-2Below 1 Ω
LEXUS IS250, IS220d / GSE20 ALE20
HORN
Lexus IS250 IS220d GSE20 ALE20
HORN RELAY