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Standard Horn Circuit

  1. Check standard horn. See STANDARD HORN  under COMPONENT TESTS. Replace standard horn as necessary. Retest system operation. If standard horn is okay, go to next step.
  2. Check circuits for faults between horn relay, body control ECU and battery. See WIRING DIAGRAMS . Repair or replace as necessary. If circuits are okay, go to next test listed in appropriate SYMPTOM DIAGNOSIS table under TROUBLE SHOOTING .
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