Computer Diagnostics and Electrical Repair

At Bennett's our technicians are well trained and have the latest equipment to help diagnose the problem with your vehicle.  When your check engine or service engine soon light comes on it's a message from your cars computer to let you know something is not performing as expected.  The issue could be as simple as a loose gas cap, a major engine problem or any number of things in between.  A computer scan can help lead us in the right direction to recommend what is necessary to fix the problem.  We'll also provide you with a cost estimate so you can make an informed, educated decision about your car repair options.

Give us a call or stop in.  By performing a quick and easy computer scan we can determine the severity of the problem and what repairs may be needed.  Sometimes a quick scan is enough for us to get you an estimate on the spot, but in most cases further diagnosis and an appointment is needed to confirm the problem.

From AAA Newsroom – AAA Experts Explain How Repair Shops Find Problems

Modern vehicle electronic control systems “know” and monitor the operating parameters of every component. When the Powertrain Control Module (PCM) that manages the system sees a signal that is outside normal limits, or fails to see an expected change in a signal, it stores a Diagnostic Trouble Code (DTC).

To access DTCs, technicians connect a “scan” tool to a Diagnostic Link Connector that is commonly located under the driver’s side of the instrument panel. The scan tool displays any stored codes, but that is only the beginning of a full computer diagnosis.

DTCs don’t tell a technician if a particular part is bad, they only indicate that the PCM has seen something it didn’t expect in a certain circuit. The problem might be the part, but it could just as easily be an issue with the circuit’s electrical wiring.

Sometimes, DTCs are set when there is nothing wrong with the electronic control system. This happens when a mechanical problem, like an engine vacuum leak, creates operating conditions that cause system components to generate signals outside their normal range.

To pinpoint a problem, the technician starts with the DTC, then performs additional tests. These can range from mechanical checks, like engine compression, to in-depth electronic diagnosis. One common procedure uses special test equipment to access the electronic control system data network and monitor real-time signals from the system components.

The ability of technicians to determine what additional tests are needed, and to accurately interpret both test results and computer network data, comes from extensive training and experience. Today’s technicians use vehicle computer diagnosis in much the same way surgeons employ medical testing. In both cases, combining test results with expert knowledge and skilled hands can lead to an accurate diagnosis and an ultimate cure.


Hours of operation:
Monday-Friday: 7am-6pm