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Speedo & turn signal issues

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Old Apr 25, 2018 | 08:04 PM
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Heritage1992
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Default Speedo & turn signal issues

1992 Heritage softail. Turn signals work when sitting still but when I get going they dont. Also the speedo is erratic, jumps around from 20 to 40 mph. I was thinking speedo sensor and/or turn signal module. I'm not sure if this model even has the TCM. Hope someone can help! I need to know my speed and for safety would like folks to know when I'm turning. Thanks!
 
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Old Apr 26, 2018 | 08:40 PM
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Disconnect the white/green wire going to the speedo and see if your signals work. If so it's the auto cancel in the speedo.
 
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Old Apr 27, 2018 | 12:30 PM
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Your '92 has a speedometer driven by a cable and gear drive from the front wheel. Check to be sure the cable and the speedometer drive isn't damaged. The turn signals "self cancel" via a reed switch in the speedometer which sends the shutoff signal after a set distance/time is traveled, whichever occurs first. If the speedo isn't working correctly, the turn signals won't auto cancel.
 
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Old Apr 27, 2018 | 01:20 PM
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Thanks guys, I've ordered a speedo. The one that's on there is really lose where the cable hooks up. Lose enough that if you wiggle it the speedo needle jumps.
 
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Old Apr 27, 2018 | 01:21 PM
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Heritage1992
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Thanks guys, I've ordered a speedo. The one that's on there is really lose where the cable hooks up. Lose enough that if you wiggle it the speedo needle jumps. Also have a new cable coming
 
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