Why is the entire Roewe RX5 not receiving power?
2 Answers
Here are the reasons why the entire Roewe RX5 is not receiving power: 1. An oxide layer between the battery terminals and battery posts causing no power. 2. Poor grounding of the main power switch to the vehicle body, blown power fuse, loose battery terminal connections, or battery damage, resulting in a short circuit in the car's electrical system. 3. The voltage line from the generator is disconnected, or the battery is excessively drained. It is best to have it further inspected at a repair shop. Below are the reasons for a car battery losing power: 1. The car has been parked for a long time, causing the battery to discharge: Even when the car is idle, the battery naturally discharges due to its self-discharge characteristics. 2. The battery has reached the end of its lifespan: Most private cars use maintenance-free batteries. Clean the battery's inspection window and observe the color inside; if it's green, the battery is functioning normally. 3. Insufficient battery electrolyte or leakage: During normal use, the battery's electrolyte naturally evaporates and depletes. 4. A blown fuse causing the battery to lose power: If the car's generator fuse is blown, the battery cannot charge, leading to a drained battery. This fault can be identified by the generator fault indicator light turning on. 5. Corrosion of battery terminals: Poor contact due to corroded battery terminals can also lead to a drained battery.
Last time I drove my Roewe RX5, I encountered a complete power failure—the dashboard went completely dark, and the start button didn't respond, as if the car had completely shut down. Possible reasons include an aging battery that can't hold a charge, especially more prone in winter; or a blown main fuse, which is located in the fuse box and responsible for protecting the entire vehicle's circuit—if there's a short circuit, it will blow; another possibility is a faulty ignition switch or key recognition issue, where the signal isn't transmitted, leaving the car without power. After checking, I found the battery was dead, and replacing it solved the problem. I recommend regularly testing battery life, such as measuring voltage with a multimeter every six months, to avoid the hassle of calling a tow truck in an emergency.
