I have a 2021 Yamaha YXZ, and lately, my transmission, coolant, engine, and diff lights won't turn off. The tachometer's dead too, it runs and drives fine, though, and doesn't show any codes, I even swapped the dash but still no luck. Anyone had similar issues or know what's going on?
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Warning lights and tach issues
- Thread starter Daemon
- Start date
Zerah Dacan
New member
- Joined
- May 1, 2025
- Messages
- 1
I have a 2021 Yamaha YXZ, and lately, my transmission, coolant, engine, and diff lights won't turn off. The tachometer's dead too, it runs and drives fine, though, and doesn't show any codes, I even swapped the dash but still no luck. Anyone had similar issues or know what's going on?
That's a weird one with your YXZ. Since swapping the dash didn't help and there are no codes, it could point to a wiring harness issue or possibly the ECU? try checking all your connections and maybe getting a multimeter on those wires. hope this helps!
Do you think the issue could be something with the ECU not sending the right signals, or is that a rare case?That's a weird one with your YXZ. Since swapping the dash didn't help and there are no codes, it could point to a wiring harness issue or possibly the ECU? try checking all your connections and maybe getting a multimeter on those wires. hope this helps!
If the wiring looks good, I'll look into a pro scanSounds like a CAN bus or ground issue. I'd double-check all grounds and inspect the CAN lines for damage or loose connections. ECU signal faults like this aren't super common but possible. If wiring checks out, a pro scan might be worth it.