* Alternator problems. The alternator is responsible for charging the battery and providing power to the electrical components in your vehicle. If the alternator is not working properly, it can cause the battery to drain and the check engine light to come on.
* Battery problems. If the battery is not holding a charge, it can cause the check engine light to come on and the transmission to behave strangely.
* Transmission problems. If the transmission is not shifting properly, it can cause the check engine light to come on and the battery to drain.
It is important to have your vehicle inspected by a qualified mechanic to diagnose the exact cause of the problem and ensure that it is repaired correctly.
Here are some additional things you can check to try to identify the source of the problem:
* Check the battery terminals. Make sure that the battery terminals are clean and free of corrosion.
* Check the alternator belt. Make sure that the alternator belt is tight and in good condition.
* Check the fluid level in the transmission. Make sure that the transmission fluid is at the correct level.
* Check the transmission filter. Make sure that the transmission filter is clean.
* Check the wiring. Look for any loose or damaged wires in the engine bay.
If you are unable to find the source of the problem, it is best to have your vehicle inspected by a qualified mechanic.
