Yes a bad alternator can cause a check engine light on the computer monitors the system voltage and will set a code if it is out of range.
Can alternator cause check engine light to come on.
Maybe some alternator issues will set a check light.
015 sounds as if the bearing is worn in the alternator will this create a check engine light 015 posted edited by anonymoususer on.
A poor performing alternator can damage the battery the.
This varies by the model but when the alternator starts to let go it can light up a check engine alt or a battery icon indicator.