Posts Tagged: check engine light on but no code
Check engine light on but no code
Why is my check engine light on but no code? What to do if you have a check engine light on but no code? I see this question often and my answer is always the same; if you have a check engine light on but no code, you’re using the wrong scan tool. Whenever you have a check engine light or ANY warning light, there’s ALWAYS a trouble code stored. Period. The end. Why can’t you read the trouble code? Trouble codes come in many varieties. When OBDII was first … Read More