Installation Manual

MAN 650314:J

If you need the warn output to be “active high” or provide a +12V voltage to power

something larger than 4wattt, a standard 12V relay can be used to accomplish this.

DO NOT CONNECT

SPD +

This terminal is used to supply power to Dakota Digital speed sensor SEN-01-5. This

supplies 5V DC to the sensor and should not be hooked up to anything else. Connect the red

wire from the SEN-01-5 to this terminal.

If you are using a 1-wire VSS output from a computer or a two wire pulse generator this

terminal should be left open.

***DO NOT use this terminal to power any other devices; it is a low current +5V output.

SPD SND

This is where the vehicle speed sensor (VSS) connects. The signal supplied to this

terminal will be used by the control box to calculate the speed reading on the display and also for

calculating and saving odometer mileage.

Dakota Digital supplies a 3-wire sensor for most of its kits, SEN-01-5. If you are using this

sensor, the white wire is the speed signal; connect to SPD SND. The red and black wires in the

cable are power and ground (5V DC) and their connection is discussed in SPD + and SPD -.

For two wire speed sensors such as a cable driven pulse generator, the polarity of the

wires does not matter. Connect one wire to the SPD – (Ground) and the other to the SPD SND

terminal. The speed sensor ground wire should be brought back to the control box to ensure a

proper signal is received. Twisting the ground and signal wires around each other provides an

additional level of interference protection. The speed signal wire should not be routed alongside

tach, ignition, or other high current or high voltage wires.

For vehicles which have a vehicle speed signal from a transmission sensor or ECM, tap

into the VSS wire and connect it to the SPD SND. Consult a vehicle service manual or wiring

diagram to determine wire color and location.

This system can accept 4,000 ppm – 128,000 ppm speed signals with room for

adjustment. The speedometer is fully adjustable and calibration is discussed in a later section.

***Failure to calibrate the speedometer may cause your odometer mileage to

increase very rapidly if the speedometer is reading too fast.

*** The speed signal wire should NOT be routed alongside ignition or other high

current/voltage wires.

SPD –

This terminal is used for speed sensor ground. This insures a proper ground as well as

providing proper hook-up for a twisted pair of wires, or a solid state sensor. Only ground the

speed sensor here. If you are using a single wire output from a computer for the VSS then this

terminal should be left open.