Where is the fuel pump relay located in the BYD F3?

2 Answers
LeIsaac
07/25/25 2:32pm
The fuel pump relay of the BYD F3 is located on the wiring harness assembly, which is positioned behind the left storage compartment under the steering wheel. The BYD F3's fuel pump relay primarily functions to amplify small currents, control high-power circuits to expand the control range. When the signal reaches a certain value, it will switch, disconnect, or connect multiple circuits according to the different forms of contact groups, achieving the purpose of an automatic switch. The BYD F3 is classified as a mid-level family car, equipped with a 1.5L naturally aspirated engine. It delivers a maximum horsepower of 109 PS, a maximum power of 80 kW at 5800 rpm, and a maximum torque of 148 Nm between 2000 and 3000 rpm. It is paired with a 5-speed manual transmission.
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Lonnie
08/11/25 9:07pm
As a seasoned driver who's been driving a BYD F3 for years, I have some experience with the fuel pump relay. It's usually located in the fuse box inside the engine compartment. Open the hood, and you'll find a black plastic box in front of the driver's seat, with various icons and labels printed on the cover. Look carefully for the small component marked 'fuel pump' – that's the relay. I remember one time my car wouldn't start, and after some troubleshooting, it turned out the relay was burnt out. Replacing it fixed the issue immediately. By the way, the location is quite well-designed for easy inspection, but be careful not to mix it up with other fuses. I recommend using a simple tool like a screwdriver to pry it out for replacement, and always disconnect the power to ensure safety. Also, if the relay fails frequently, there might be an issue with the circuit that needs thorough checking. Don’t overlook this detail, as it could affect driving safety.
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