Last Updated: May 05, 2021

On Board Diagnostics for Riverside Motorists

Some Riverside vehicle owners wonder why California Smog & Automotive Institute and other Riverside auto repair shops charge a fee for vehicle diagnostics.

Receiving a diagnostic charge at California Smog & Automotive Institute for a tricky automotive problem shouldn't be a surprise. In the Riverside area, automotive diagnostics can cover quite a range. If you hear a noise in your vehicle brakes when you slow down in rush-hour traffic on a busy CA road, you pull off at the next off-ramp and take a quick visual check. That is usually enough to know what needs to be done. If you're having an intermittent problem with your vehicle engine, however, a California Smog & Automotive Institute diagnosis may be much more involved.

Much of the Riverside driver's confusion comes when the problem involves the Check Engine light. The Check Engine light comes on when the engine management computer has sensed a problem.

There's a common misconception among CA drivers that the trouble code tells the California Smog & Automotive Institute technician exactly what's wrong. They wonder why there is a diagnostic charge because the scanner quickly gave the diagnosis.

In reality, it is not that easy and straightforward. The computer monitors many sensors throughout the vehicle. When one of these sensors has a reading that's out of parameters, the computer will record a trouble code and turn on the Check Engine light.

The vehicle computer's trouble code just tells the California Smog & Automotive Institute technician what engine parameter is out of range, not what's causing it. The technician needs to determine the underlying problem that's causing the malfunction.

There are many problems that could cause a troublesome sensor reading for California Smog & Automotive Institute customers. The service advisor makes a list of the most likely causes and begins tracking down the source of the problem. This takes time.

Riverside service centers subscribe to databases that document possible causes for all the possible trouble codes. The databases outline procedures for confirming a diagnosis and provide the documented repair. These  databases are specific to each vehicle and engine combination.

Some diagnoses are quick and easy. Others are more involved, time-consuming and difficult. Of course California Smog & Automotive Institute wants to figure out what's wrong with your vehicle and get you back on the road as quickly as possible.

California Smog & Automotive Institute
3001 Chicago Ave.
Riverside, CA 92507
951.781.0412
csaiauto.com