Horn — Horn circuit, except electric Ford Focus III
All systems — 33 systems
- Air conditioning 3
- Anti-lock brakes 2
- Anti-theft 5
- Body control modules 2
- Computer data lines 2
- Cooling fan 2
- Cruise control 2
- Defoggers 2
- Electronic power steering 2
- Engine performance 2.0l
- Engine performance 2.0l turbo
- Engine performance electric
- Exterior lights 4
- Ground distribution 2
- Headlights 3
- Horn 2
- Instrument cluster 2
- Interior lights 4
- Navigation 8
- Power distribution 2
- Power door locks 3
- Power mirrors 5
- Power seats 4
- Power top/sunroof
- Power windows 4
- Radio 7
- Shift interlock 2
- Starting/charging 2
- Supplemental restraints 2
- Transmission 2
- Trunk, tailgate, fuel door 2
- Warning systems 2
- Wiper/washer 2
