Safemax Drive By Wire (DBW) Speed Limiters:
Safemax Drive By Wire is used by vehicles equipped with electronic accelerator pedal..
Functions of DBW Speed Limiters
Lets assume the Speed is set at 80 km/h:
•The vehicle will be running till 79 km/h & when it reaches 80 km/h, Safemax DBW will start to function.
•The Speed Signal is received from the Speed sensor which is connected to the Electronic Sensor Adapter
•This Adapter will convert the speed pulse to square wave pulse which is compatible to the E.C.U
•The Device will control the output voltage of the electronic accelerator pedal which is sent to the ECM of
•This results in regulating the fuel to the engine. Thus the speed of the vehicle can be controlled.
•The voltage will be controlled only when the set speed is reached. Once the vehicle goes below the set
speed the E.C.U will not control the output voltage.
Mounting of the E.C.U (DBW Speed Limiters)
Fix the ECU at suitable position with fasteners
Connect the Power Supply Harness to the vehicle
Make sure that the red wire is connected to the
positive supply & black should be grounded to the
vehicle metallic body.
Connect the four core wire to the two output of
the accelerator pedal & it should be sealed with
end caps provided.
Green – Power supply
Red (Blinking) – Sensor signal
Red – Attains set speed