Ford 9n 12 Volt Conversion Wiring Diagram Collection
CHART EXPLANATION B- 12 volt ignition U- 12 volt battery E- ECU Ground P- Pressure sensor, Air flow signal (Note: some applications have multiple “P. Buy Wolo (MCHWK-2 Air Horn Wiring Kit: Automotive - Amazon.com FREE DELIVERY possible on eligible purchases. Adapter converts from 4 pole wiring on vehicle to 7-pole round plug and 4-pole flat. Additional wire leads for brake, power and accessory. Lowest Pric.