wxijohnn Posted March 5, 2016 Share Posted March 5, 2016 I have a problem with my electronic speedo, and cannot get it to work. Any recommendations on who to take it to ? Thanks Quote Link to comment Share on other sites More sharing options...
Welly Jen Posted March 5, 2016 Share Posted March 5, 2016 What is the problem? Who makes the speedo? Is it electronic, picking up speed information from a sensor, or mechanical, via a cable from the gearbox? Jen Quote Link to comment Share on other sites More sharing options...
wxijohnn Posted March 5, 2016 Author Share Posted March 5, 2016 Hi. It appears to be electronic picking up via sensor to the gearbox. It is just not registering any speed. Quote Link to comment Share on other sites More sharing options...
Welly Jen Posted March 5, 2016 Share Posted March 5, 2016 Various things could stop an electronic speedo from working. The power, or ground electricity supply to the speedo could be duff. The sender on the gearbox could be broken, or the wiring from the sender to the speedo. Worth eliminating these first, or sending the speedo off to be fixed will just result in a "no fault found" and you'll be back to square one. Do you get any jolt, or movement on the speedo needle when you turn on the ignition? Do the internal instrument lights in it work when the car side and headlights are on? Again, what make is the speedo? Do you know what type of gearbox you have on the car? Jen 1 Quote Link to comment Share on other sites More sharing options...
Thrustyjust Posted March 5, 2016 Share Posted March 5, 2016 Earths on kit cars are the first thing to check ! Quote Link to comment Share on other sites More sharing options...
SootySport Posted March 8, 2016 Share Posted March 8, 2016 Electronic speedos usually read from a sensor on the rear diff or wheel sensor on the front upright. Worth looking at the gap between the sensor and pick up point such as a trigger wheel or bolt heads, which should be very close and about 1 or 2mm apart. If it's a VDO speedo check out this http://www.nsifleet.com/pdf/ProgrammableSpeedometer.pdf ETB instruments in Southend On Sea do repairs/advice. Quote Link to comment Share on other sites More sharing options...
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