Search results

  1. H

    Speedometer off (tried two different calibrators)

    Also, a representative from JScan worked with me for a good hour today and they were stumped as well. They too thought it might be a defective speedometer. Tire speed sensors wouldn't have anything to do with it would they? I replaced the rear speed sensors today because I received a code...
  2. H

    Speedometer off (tried two different calibrators)

    Thank you very much for the response. It is an automatic. I deleted the ECRI app before installing JScan. The GPS reads pretty much the same as the JScan trail mode that shows me the mph as I drive. I'm also wondering about a broken speedometer. I wonder how I could determine if the...
  3. H

    Speedometer off (tried two different calibrators)

    My speedometer is off by 6-9mph. Higher speeds (above 50), its off by about 6mph. Lower speeds (between 20 and 50) it's off by approximately 9mph. It has a four inch lift and 35" tires. It is an 08, JKU Rubicon. So, I bought two different calibration devices. One is the ECRI and the other is...