What does the display of code68 in the Buick Excelle mean?
3 Answers
It is caused by the battery, which may need to be replaced, or there may be corrosion at the battery terminals leading to poor connection. Here are some related introductions about the battery: 1. Battery lifespan: The lifespan of a battery is approximately 3-4 years or 35,000 kilometers. Developing good driving habits in daily use can help extend the battery's lifespan. 2. Battery maintenance: Increase the frequency of long-distance driving to allow the battery to charge more. Don't hesitate to press the accelerator; higher RPMs are beneficial for charging and help prolong the battery's lifespan. Frequent short-distance city driving can lead to insufficient battery voltage and significantly drain the battery.
I've also encountered the fault code 68 on my Buick Excelle, which is actually an issue with the generator system. Specifically, it indicates an abnormality in the L-terminal circuit of the generator, simply put, there's a problem with the generator regulator or related wiring. At that time, my car showed a flashing battery light, and I felt the steering wheel became heavier during acceleration. This can cause unstable generator output voltage, and in severe cases, the battery may drain, potentially leaving the car stranded on the road. I recommend not waiting until a breakdown occurs to address it. Check immediately for loose generator plugs, damaged wiring, and replace the voltage regulator module if necessary. If the battery light on the dashboard is also illuminated simultaneously, it's even more crucial to take it seriously.
Code 68 indicates an issue with the generator's L-terminal circuit. This is the critical signal line that controls the generator's voltage. When I encountered this problem, the headlights would suddenly dim when the air conditioning was on. If left unrepaired for a long time, the battery may fail prematurely, and it can also cause the vehicle's computer to falsely report other faults. It's recommended to first check the thin wire connector on the generator in the engine compartment for any signs of burning or poor contact. If you can't fix it yourself, take it to a repair shop to test the generator's output voltage, which should normally be between 13.5-14.5 volts. As a reminder, if you encounter this fault code, avoid driving on highways—if the power fails midway, even the power steering could stop working.
