Why are all the warning lights on the dashboard of the Golf 7 illuminated?
2 Answers
The reasons why all the warning lights on the dashboard of the Golf 7 are illuminated: 1. CAN bus failure of the ECU; 2. Poor contact of the ECU's CAN interface. There are dozens of warning lights on the car dashboard, including the tire pressure warning light, water temperature warning light, windshield washer fluid warning light, engine fault warning light, battery warning light, brake warning light, door not closed warning light, seat belt not fastened warning light, ABS warning light, and oil warning light. The Golf 7 is equipped with EA211 series 1.6L and 1.4T engines. Although it maintains the same displacement as the Golf 6, the power parameters of the two engines have changed. The 1.6L engine has a maximum power of 81 kW and a maximum torque of 155 N·m, paired with a 5-speed manual and 6-speed automatic transmission.
When I encountered all dashboard lights illuminating in my Golf 7, my first reaction was not to panic, as this is usually caused by electrical issues. The most common reasons include insufficient battery voltage or loose connections; the system self-check lights should turn off after the car starts—if they remain lit, it indicates the system has detected a fault. Other possible causes include sensor false alarms, circuit shorts, or software issues with the instrument control module. I remember once during a long winter drive, aging battery caused voltage instability, triggering all lights to illuminate; disconnecting the negative terminal for a few minutes to reset the system fixed it after parking. Preventive measures include regularly checking the battery and circuits, ensuring tight connections to avoid oxidation, which is crucial for extending the car's lifespan. If the issue recurs, it's advisable to visit a professional repair shop to read fault codes with a diagnostic computer—avoid disassembling parts yourself to prevent further damage. Safety first: if lights stay on, stop to inspect or call for a tow truck.
