Check Engine Light On: 1995 Jeep Grand Cherokee Limited 4x4 4.0 Engine
Hello, the check engine light is on in my mom's 1995 jeep grand cherokee limited 4x4 with the 4.0 six cylinder engine and I was able to pull the codes by turning the ignition key to On, Off On, Off and then back to On and the following codes came up: 12, 41 and 55.
What do those codes mean? I tried checking the link under frequently asked questions about the trouble codes but the link doesn't work. She just had the oil change done on it yesterday at Lube Stop in Barberton, OH and the check engine light came on after she had the oil changed and was on her way home.