Here is the link to get the manual. http://www.caralarm.com/manuals/MARS/MARS-22.pdf
See pages 20 & 21 ( see picture) With the engine running you will turn either the Smart Start or Tach Wire adjust screw, depending on which setting your box is set on. You will turn one or the other until the LED LIGHT blinks consistently.
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Here is the link to get the manual.
http://www.caralarm.com/manuals/MARS/MARS-22.pdf
See pages 20 & 21 ( see picture) With the engine running you will turn either the Smart Start or Tach Wire adjust screw, depending on which setting your box is set on. You will turn one or the other until the LED LIGHT blinks consistently.