 |
Is the fuse burned out? |
 |
Does the battery supply 12V to IGN when the ignition
is on? |
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Are the engine revolution speed and vehicle speed
displayed correctly? |
 |
Are the control unit and the display unit connected
correctly? |
 |
Are there anything loose connections? |
 |
Has the unit been set correctly for the number
of speed pulses for the vehicle's ECU and for the number of
cylinders? |
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Does your engine have an aftermarket or non-OEM
computer? |
 |
Does your vehicle have a speed governor release
equipment? |
 |
Stop the vehicle at the safety place and make
sure that the ignition is off. Disconnect the negative(-) battery
terminal and connect it again. Restart the vehicle and check
the operation of the product. |