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Test No. 35: 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 No. 1 and battery. See WIRING DIAGRAMS . Repair or replace as necessary. If circuits are okay, perform appropriate pin voltage test under BODY CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TEST.
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