What are the reasons why the BYD S6 won't start despite having power?
3 Answers
BYD S6 won't start despite having power due to the following reasons: 1. Steering wheel lock: You can turn the steering wheel left and right while pressing the engine start-stop button to release the tension and unlock the steering wheel. 2. Insufficient battery voltage, dead battery, or battery damage: You can use jumper cables to start the car with another battery. The correct connection method is: connect the positive terminal of the discharged vehicle's battery to the positive terminal of the assisting vehicle's battery, then connect the negative terminal of the assisting vehicle's battery to the negative terminal of the discharged vehicle's battery. After ensuring the cables are properly connected, start the assisting vehicle (start the assisted vehicle later) to allow the discharged vehicle to charge.
I've had a BYD S6 for several years, and it's quite common to experience no-start issues when there's still power, especially in cold or humid weather. The battery may appear to have charge but could be aging with insufficient output, leading to weak cranking, or the starter might be stuck and unable to turn the engine. Don't forget the key system—if the remote key's battery is dead, the anti-theft module may lock and prevent ignition; try replacing the key battery. Fuel supply could also be problematic—if the fuel pump isn't working or the filter is clogged, fuel won't reach the cylinders, causing a no-start. Faulty sensors like the crankshaft position sensor can also mislead the ECU into refusing ignition. Regular maintenance of the battery and starting system is advised, with a pre-winter check to avoid breakdown risks. If it happens, avoid cranking excessively to drain the battery; instead, call for professional towing or visit a repair shop to diagnose trouble codes—safety always comes first.
When encountering a BYD S6 that won't start despite having power, as an experienced owner I recommend starting with simple troubleshooting. Check if the fuel gauge is working properly - sometimes the fuel pump fails but the gauge still shows fuel. Listen for sounds when starting - no sound may indicate a faulty ignition switch or relay; sounds without ignition are often due to spark plug carbon buildup or failed ignition coil. Even with power, a battery voltage below 12V won't work - test with a multimeter. Engine sensor failures like oxygen sensor issues can also interfere with ECU startup. For prevention, regularly replace the battery and clean wiring connections to reduce oxidation effects. If all else fails, don't push it - call for roadside assistance to ensure safety.
