why do check engine light comes on
Have the ECU scanned with an OBD2 scan tool.
Looking for Lexus ES300 engine 1993
The Check Engine Light comes on when the ECU has detected a problem with the emissions system. Have the ECU scanned with an OBD2 scanner to retrieve the code that has been set. That code will tell you where to start looking for the problem.
No, the check engine light comes on when the computer detects a malfunction and sets a code.No, the check engine light comes on when the computer detects a malfunction and sets a code.
The check engine light is the light shaped like an engine, or the light that states Check Engine (Soon). If this light comes on, it is time to see what the issue is with the engine.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
The check engine light comes on when the computer detects a malfunction and sets a code.The check engine light comes on when the computer detects a malfunction and sets a code.
Maybe, the check engine light comes on when the computer detects a malfunction and sets a code.Maybe, the check engine light comes on when the computer detects a malfunction and sets a code.
If an check engine light does not come on it is a good thing. When your check engine light comes on, it means you need service done on your vehicle.
A low battery can cause the electrical system to flash check engine lights
I had all sensors replaced in my 03 Trailblazer and the check engine light stiil comes on. Why?
The check engine light comes on at start up for a bulb check. If it stays on with the engine running the computer has detected a malfunction. You need to have it checked for codes.