Ford Ranger 2015 - Electronic Engine Controls; Vehicle Speed Output (Signal) (Low Level Vehicles Only)

4.2 Electronic Engine Controls
4.2.1 Vehicle Speed Output (Signal)
(Low Level Vehicles Only)
General Information
WARNING: Do not interface with the CAN
(controller area network) for vehicle
speed.
NOTE: A hard-wired vehicle speed signal is
available if integration is required.
NOTE: The vehicle speed signal is a direct current
coupled square wave that varies in frequency in
proportion to vehicle speed. This provides a
square wave-form (50% duty cycle) signal.
Circuit hardware
Square Wave Characteristics - Output signal
Sunroof Taxi Speed OutputSignal Requirements
Battery VoltageMaximum High Signal
3.67 VoltsMinimum High Signal
1.1 VoltsMaximum Low Signal
-1.1 VoltsMinimum Low Signal
+/- 1.0 VoltsMaximum Ground Offset
10μ sec <= tr <= 250μ secRise Time
10μ sec <= tf <= 250μ secFall Time
50% +/- 10%Duty Cycle
1.38 * v (Vehicle speed (CAN) km/h) ± 2%
between 1km/h - 250km/h
Frequency
1.38 Hz (1 kmph)Minimum speed
<0.3%Linearity error
398 HzMax frequency
1 k ohmsRload
Date of Publication: 02/2017
FORD RANGER 2015