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Home >> Lexus >> 1998 >> GS 300 >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control System >> Circuit Tests >> Standard Horn Circuit

Standard Horn Circuit

  1. Check Standard Horn

    Check standard horn. See STANDARD HORN under COMPONENT TESTS. If standard horn is okay, go to next step. Replace standard horn as necessary. Retest system operation.

  2. Check Circuits

    Check circuits for faults between horn relay, body control ECU No. 1 and battery. See WIRING DIAGRAMS. Repair or replace as necessary. If circuits are okay, go to next test listed in appropriate TROUBLE SHOOTING SYMPTOMS table.
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