Why does the turn signal stay on and cannot be turned off?
2 Answers
Check whether the horn is short-circuited or damaged. Detailed explanations for the turn signal staying on and unable to be turned off are as follows: Short circuit: There may be a short circuit in the electric vehicle's wiring. Open it up and carefully inspect the internal wires, considering whether water ingress or other issues may be the cause. Maintenance check: Repeatedly switch the electric door. If the electric vehicle has a key alarm system, start the vehicle directly with the remote without inserting the key, then observe whether the issue persists. If the alarm keeps sounding, the electric vehicle controller must be inspected at a repair shop. Regarding maintenance: Since electric vehicle projects are simpler than those of fuel vehicles, the corresponding costs are lower.
I've always been quite interested in minor car malfunctions, and the issue of turn signals staying on is actually quite common. Possible causes include a stuck switch—the lever inside gets jammed and can't return to position; relay failure, which is that little box controlling the current, where the contacts fuse and the current can't be cut off; there's also a short circuit, where damaged wires directly connect; control module issues, as if the computer's brain got fried; or a blown fuse that might cause the lights to stay on randomly. I remember a friend's car had this issue due to an aging relay, with the lights staying on all night and draining the battery by the next morning, making it impossible to start. The excessive power drain can also dangerously mislead other traffic. If this happens, pull over to check the fuse and remove it as an emergency measure, then head straight to a repair shop for a full diagnosis. Never tamper with the electrical circuits yourself—it's easy to get shocked. Professional repairs are the most reliable solution.
