Chosen Solution
I was driving home and I noticed my brake light and battery light on and then noticed I didnt have any power when I accelerated. I pulled in my house and turn off car. Tried restarting it and it seems as if my battery was dead but then started spinning over and started. Still same problem. Not it starts up with no problem but the battery/ brake lights are on and no power. What could be wrong? Oh and I forgot to mention I checked the oil and it was extremely low so I put some but still have the same problem. Could being low of oil triggered limp mode.
Hi @kimcullen101 Check the alternator’s voltage output level. With the engine running connect a DMM (Digital Multimeter - DC Voltmeter function) across the battery terminals. «««««<Be safety aware - the engine is running»»»»»» The voltage reading should be between 13.8VDC - 14.2VDC. Anything less than 13.8V means that the battery is being discharged, not being charged, when the engine is running because the alternator cannot supply the electrical power so the extra power is coming from the battery. You can also measure the battery voltage without the engine running. A good battery should read between 12VDC - 12.5VDC, even 11.5VDC is passable but definitely not less. It may be reading low due to not being charged by the alternator and will be OK when being properly charged
