The Lewis Complete Auto Repair Guide To Vehicle DiagnosisDecember 10, 2013

Why is my check engine light on?

Modern Rowlett vehicles have several computers on board that control all kinds of things like engine functions, transmission shifts, traction control, anti-lock brakes, stability control, emissions – and on some vehicles, even steering, braking and the throttle.

Think about that for a minute – things that used to be controlled by simple mechanical connections now have electronic controls that rely on computers, software and sensors. It’s no wonder that when something goes wrong with their truck it can be pretty complicated for Rowlett auto owners to track down the source of the problem.

To help your Lewis Complete Auto Repair service advisor figure out what’s wrong, your truck is equipped with on-board diagnostics. The Check Engine Light comes on to tell you there’s a problem and the engine management computer stores a trouble code. Your friendly Lewis Complete Auto Repair technician connects a scan tool to your vehicle’s diagnostic port and retrieves the trouble codes as well as other important data.

Trouble codes are like clues for the Rowlett technician to follow as he diagnoses what’s wrong with your truck. In a way, it’s like going to your Rowlett doctor with a problem. She’ll run some additional tests and gather the information she needs to make a diagnosis and form a treatment plan. How much a vehicle diagnosis costs at Lewis Complete Auto Repair in Rowlett depends on how much time it takes to sort out the symptoms and find the underlying problem.

Give us a call

Lewis Complete Auto Repair
972.475.4800
5110 Grisham Dr.
Rowlett, TX 75088