Speedometer Calibration With An Obdii Connection; Input Menu Display - Dakota Digital ECD-200BT Manual

Speedometer calibration with an OBDII connection:

*To simplify the setup procedure, please download out IOS or Android app 'Dakota Digital Accessory'*
The speedometer signal from the ECM is normally calibrated to be accurate.
If there have been changes to the gearing or tire size then the reading can be adjusted from 75% to
125%.
If the speedometer reading from the ECM is farther off than this, the ECM should be programmed to
correct the speed, or the signal feeding the ECM should be corrected.
Input source menu
The ECD-200BT can read a regular electronic vehicle speed signal (VSS) from a dedicated
speed sensor or from a VSS output of an engine computer or transmission computer. It can also
read OBDII speed in 1996 and newer GM and Ford vehicles, and 2003 and newer Chrysler/Jeep
vehicles.
The ECD-200BT will not be able to read CAN speed from aftermarket ECMs like Holley or
FAST, or non US standard protocols.
Input menu display: - LED: 
• Press and release switch until  is displayed. Hold switch until "" is displayed
•  = speed input signal will be from a VSS source
o Press and hold the switch until "" to save and exit to main menu
•  = speed input signal will be from a OBDII source
o When  is selected by holding the switch until "" appears two options appear
o  – saves and exits back to main menu
o  – a submenu of four ODBII channels to pick from, if the ECD conflicts with a scanner
▪ \  \  \ 
o Tap the switch to change ID values
o Press and hold the switch to save until "" and exit to the main menu
Calibration menu adjust (0 MPH): - LED: 
• Press and release the switch until "" is shown, then press and hold the switch to select it
• Release the switch. The display will show either "" (make the speedometer faster) or ""
(make the speedometer slower).
• Tap the switch until the desired direction is shown, then press and hold the switch to select it
• The display will show the . Tap the switch to change the calibration value
• Press and hold the switch to save the calibration value
• Tap the switch until "", or turn the key off to exit setup
• The Dakota Digital Accessory app makes this adjustment very easy
8
MAN# 650704B