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Home >> Chrysler >> 2005 >> 300 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Body Control Modules) >> System Tests >> Vehicle Theft Security System (VTSS) >> Horn Input Stuck
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Horn Input Stuck

WARNING: This page is about a different car, the 2002 Dodge Grand Caravan, 2002 Dodge Caravan, 2002 Chrysler Voyager, and 2002 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: After making any repairs, perform VTSS VERIFICATION TEST  under VERIFICATION TESTS.
  1. Turn ignition on. Using scan tool, erase Front Control Module (FCM) DTCs. Turn ignition off. Wait approximately 10 seconds. Turn ignition on. Recheck for FCM DTCs. If HORN INPUT STUCK resets, go to next step. If HORN INPUT STUCK does not reset, system is okay at this time. Check for intermittent poor connections or faulty circuits. See ANTI-THEFT and HORN in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
  2. Turn ignition off. Locate and disconnect FCM. See FRONT CONTROL MODULE  under REMOVAL & INSTALLATION. Using DVOM, measure resistance between ground and FCM connector terminal No. 17. See Figure. If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, replace FCM.
  3. Disconnect Intelligent Power Module (IPM) connector C7. See Figure. Using DVOM, measure resistance between ground and IPM connector C7 terminal No. 19 (Dark Green/Violet wire). If resistance is 5 ohms or less, repair short to ground in Dark Green/Violet wire between IPM and clockspring located in steering column. If resistance is greater than 5 ohms, replace IPM.
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