Repair Handbook: Troubleshooting Roundup for Electrical System of Electric Tricycle-10

10. The horn is out of control.

(1) Causes:

① Horn damaged, ② Horn switch damaged, ③ Short circuit of connection wire or connectors.

(2) Troubleshooting:

① Use a multimeter to test the voltage at both ends of the horn wire after pressing the horn switch. If the voltage is normal, the horn is damaged. If no voltage, the horn switch is damaged or the wire is disconnected. Connect the two wires of the horn switch directly and then quickly identify the fault. ② If the positive and negative terminals of the electronic horn are reversed, the horn will not sound.

Please subscribe our Youtube channel :YouTube@fodauto

which uploaded lot of after-sales technical videos.

Please send an email to

CHONGQING FORWARD AUTO TECH CO.,LTD. has been engaged in the design, manufacturing and sales of electric tricycles, electric four-wheelers, electric scooters, as well as scooters for the elderly and disabled for more than 20 years. Glad to share our experience with you from 5 parts:

1、vehicle manufacturing and inspection

2、 important parts manufacturing and inspection vehicle

3、parts maintenance knowledge

4、after-sales maintenance knowledge

5、technology cutting-edge discussions

The content is continuously updated, please keep following us.

Please share it to your friends if this content is helpful to you. Making progress together with everyone is a purpose of this sharing

Share to

Leave a Reply

Your email address will not be published. Required fields are marked *