Fuel Guage and Left Turn Signal Indicator not working
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2nd Gear
Joined: Jul 2019
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From: belmont, nc
Fuel Guage and Left Turn Signal Indicator not working
I have a 2014 Street Glide Special that seems to have an electrical problem. The far left module houses the fuel gauge and the left turn signal arrow. Both have stopped working, however the left turn signals are working correctly, it's just the indicator lamp that isn't working. I figured that it was a ground issue but haven't been able to identify. I've checked all the fuses and they are not blown and are seated properly. Any suggestions? There are 3 wires going into the connector, one is hot when the switch ignition switch is on. Thanks
Thread Starter
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2nd Gear
Joined: Jul 2019
Posts: 6
Likes: 0
From: belmont, nc
Thanks! That was the first thing I tried. There are 3 wires that go to the gauge. I have 12v on the red wire when I turn the switch on. I figure the other 2 wires are "ground" that is switch somewhere but I can't figure out the wiring diagram. I appreciate you reply and any help!!!! Thanks, Marty
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From: Virginia
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Thread Starter
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2nd Gear
Joined: Jul 2019
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From: belmont, nc
Thank you, I removed the small wiring harness, all pins appear to be straight and there is no corrosion that I can see. I could spray some contact cleaner in there and will try that. I've also wiggled it with the switch on to see if there may be a loose connection but couldn't find anything. Could the gauge simply be bad? I didn't know if that would stop both the turn signal indicator and the fuel gauge to quit working of if they are two separate items. Thanks for helping..
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Seasoned HDF Member
Joined: Jan 2007
Posts: 5,601
Likes: 4,042
From: Virginia
Thank you, I removed the small wiring harness, all pins appear to be straight and there is no corrosion that I can see. I could spray some contact cleaner in there and will try that. I've also wiggled it with the switch on to see if there may be a loose connection but couldn't find anything. Could the gauge simply be bad? I didn't know if that would stop both the turn signal indicator and the fuel gauge to quit working of if they are two separate items. Thanks for helping..
Do this:
- Backprobe connector
- Confirm:
- 12V power
- good ground
- Add temporary external ground jumper
- Spray contact cleaner
- Re-test
- replace the fuel gauge assembly/module.
Thread Starter
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2nd Gear
Joined: Jul 2019
Posts: 6
Likes: 0
From: belmont, nc
- Backprobe connector
- Confirm:
- 12V power Good 12.8 v to ground
- good ground
- Add temporary external ground jumper Added temporary ground jumper, still not working.
- Spray contact cleaner Sprayed contact cleaner, still not working.
- Re-test
- replace the fuel gauge assembly/module.
Last edited by dmw8008; May 17, 2026 at 07:47 AM.