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Where is the fuel pump relay installed in the BYD S7?

4 Answers
DeJoshua
07/29/25 2:44pm
The fuel pump relay of the BYD S7 is located in the control cabinet or control box. Below is relevant information about the fuel pump relay: 1. Working principle: The fuel pump relay primarily functions by automatically closing its contacts when the vehicle reaches the specified oil pressure. This serves as a signal of normal oil pressure, which is then transmitted to CNC, PLC, etc., as a condition for allowing the equipment to start. 2. Function: When the pressure falls below the specified level, the pressure relay contacts will automatically open, cutting off the control circuit, triggering an alarm, and causing the vehicle equipment to stop working automatically to protect the safety of passengers and the equipment on board.
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Ana
08/13/25 7:12am
I've driven the BYD S7 for several years, and the fuel pump relay is located in the fuse box in the engine compartment. Generally, there's a black box under the front hood near the battery, with icons or text markings on the cover. When I looked for it, I first turned off the car and disconnected the negative battery terminal, then lifted the cover to check—inside the box, there are rows of small components, and the relay is the square one with several pins. Its exact position is under the "fuel pump" labeled section. Remember not to touch it with wet hands to avoid short circuits. For precise details, refer to the car's manual, which has clear diagrams. If you can't find it, taking a photo and asking a mechanic is also a reliable approach. These relays rarely fail, but if they stop working, the car won't start, so it's safer to address the issue early.
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DiBraxton
10/11/25 4:14am
Regarding the installation position of the fuel pump relay for the BYD S7, it is located inside the fuse relay box in the engine compartment. This box is typically situated in the right corner after opening the hood, adjacent to the windshield, with sections clearly marked for different relay types. The fuel pump relay should be a small metal-cased square, fixed onto the base of the box. When searching for it, it is advisable to wear gloves to prevent static electricity and to disconnect the battery before proceeding. The box cover may have a snap design and can be gently pried open. The position is generally fixed, but may vary slightly in some models. Refer to the index page of the vehicle's manual for clear diagrams to avoid accidentally interfering with other circuits. A faulty relay can prevent the car from starting, and regular cleaning of dust inside the box can extend its lifespan.
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AllieFitz
11/24/25 5:21am
To locate the fuel pump relay for the BYD S7, it's located in the fuse box in the front engine compartment. Open the hood, and on the right-hand side, you'll find a black plastic box. Opening it reveals a collection of fuses and relays. The fuel pump relay is typically in the area marked 'Fuel' or with a numerical label. The position is fixed, and you can open the cover with a small pry tool. Always disconnect the negative battery terminal first for safety. If unsure, refer to the owner's manual or search for images online to confirm.
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