If the ABS warning light on the dash comes on and stays on while the vehicle is on operation, The ABS system requires attention. Diagnosis is quite complex, involving a number of lengthy diagnostic procedures, so I don't recommend attempting to fix the ABS system at home.
This is usually cause by a stuck brake light switch on the brake pedal. Replace it.
On the brake pedal assembly.
Just unscrew it.
Brake light switch needs adjusting or replacing. It is too sensitive.
Just unscrew the rear brake light, turn out the socket, and replace the bulb.
Stop light switches are mounted on the brake pedal lever, typically.
"Stuck" brake lights indicate that the brake light switch on the brake pedal is broken. It should be replaced.
You may be low on brake fluid. If you are low on brake fluid you may be ready for some brake work or you have a leak somewhere in the system, have it checked soon!
walmart
There are many, many things that can cause the MIL to light up. You will need to have the problem diagnosed by first reading the codes and going from there.
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.
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