2002 Fatboy turn signals not working
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2nd Gear
Joined: Oct 2021
Posts: 6
Likes: 2
From: Bunker Hill, WV
2002 Fatboy turn signals not working
Hi all. I'm hoping somebody can help because I'm at a loss. I have no turn signals. I have changed the circuit board in the tail light, one of the connectors from one of the turn signals, the harness going under the fender, The turn signal module (eBay), the fuse, both handlebar switches, and I still have no turn signals. I put a Badlands TSM on and I get front left turn signal but the other still don't work. I'm ready to torch this thing.
Seasoned HDF Member
Joined: May 2008
Posts: 21,173
Likes: 12,740
From: South Carolina
Have you checked all fuses?
Exactly what happens when you turn the left turn signal on?
What happens when you turn the right turn signal on?
Did you cut, splice or modify the original wiring?
Exactly what happens when you turn the left turn signal on?
What happens when you turn the right turn signal on?
Did you cut, splice or modify the original wiring?
Thread Starter
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2nd Gear
Joined: Oct 2021
Posts: 6
Likes: 2
From: Bunker Hill, WV
Yes I checked all the fuses. There's not a single splice in the harness. When I push the left turn signal button I get the front left turn signal but not the rear. And only if I add a aftermarket flasher plugged in between the main harness and the harness that runs under the fender. Nothing happens when I hit the right turn signal. And nothing happens when I push both turn signals. It's possible I bought a bad TSM but both of them are acting the same...
Seasoned HDF Member
Joined: May 2008
Posts: 21,173
Likes: 12,740
From: South Carolina
Leave any aftermarket stuff off for now, so you can troubleshoot the wiring to make sure the circuits are intact.
First, let`s make sure the TSM is getting the signal from the turn signal switches on the handlebar:
Unplug the TSM.
At the TSM connector on the harness, read the voltage at the White/Violet wire in the connector when you press the left turn signal button (ignition on).
What is the voltage reading?
First, let`s make sure the TSM is getting the signal from the turn signal switches on the handlebar:
Unplug the TSM.
At the TSM connector on the harness, read the voltage at the White/Violet wire in the connector when you press the left turn signal button (ignition on).
What is the voltage reading?
Last edited by Dan89FLSTC; Jul 11, 2024 at 05:25 PM.
Thread Starter
|
2nd Gear
Joined: Oct 2021
Posts: 6
Likes: 2
From: Bunker Hill, WV
Leave any aftermarket stuff off for now, so you can troubleshoot the wiring to make sure the circuits are intact.
First, let`s make sure the TSM is getting the signal from the turn signal switches on the handlebar:
Unplug the TSM.
At the TSM connector on the harness, read the voltage at the White/Violet wire in the connector when you press the left turn signal button (ignition on).
What is the voltage reading?
First, let`s make sure the TSM is getting the signal from the turn signal switches on the handlebar:
Unplug the TSM.
At the TSM connector on the harness, read the voltage at the White/Violet wire in the connector when you press the left turn signal button (ignition on).
What is the voltage reading?
White/violate = 12.3v while holding left turn button.
White/black, next wire, 12.3 while holding right button
Thread Starter
|
2nd Gear
Joined: Oct 2021
Posts: 6
Likes: 2
From: Bunker Hill, WV
12v
Leave any aftermarket stuff off for now, so you can troubleshoot the wiring to make sure the circuits are intact.
First, let`s make sure the TSM is getting the signal from the turn signal switches on the handlebar:
Unplug the TSM.
At the TSM connector on the harness, read the voltage at the White/Violet wire in the connector when you press the left turn signal button (ignition on).
What is the voltage reading?
First, let`s make sure the TSM is getting the signal from the turn signal switches on the handlebar:
Unplug the TSM.
At the TSM connector on the harness, read the voltage at the White/Violet wire in the connector when you press the left turn signal button (ignition on).
What is the voltage reading?
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