Truck Diagnostics & Electrical Repair Services in San Antonio, TX

At Santin Auto & Truck Repair, we’ve seen our fair share of electrical system failures. This system controls everything from the engine's starting and running to the cab's lights, radio, and more. We have the tools, technology, and know-how to get your electrical system back up and running using the latest diagnostic software.

Diesel mechanic performing engine diagnostics & electrical repairs on semi truck in San Antonio, Texas

Diagnosing Electrical System Issues

When you bring your fleet truck to the shop with an electrical issue, our first step is to diagnose the problem. Our mechanic will use diagnostic tools to read the truck's onboard computer system, which will reveal any error codes related to the electrical system. They’ll also conduct a visual inspection of the truck's battery, alternator, and other electrical components to determine if there is any visible damage or wear.

If there are no visible issues, a series of tests will be used to determine the root cause of the problem. These tests may include testing the voltage output of the battery and alternator, checking the fuses and relays, and testing the wiring connections. Once the root cause of the problem has been identified, Santin Auto & Truck Repair will provide an estimate for the repair.

Repairing Electrical System Issues

Once our mechanic has identified the issue with the electricals, they’ll begin to make the necessary repairs. Depending on the issue, this may involve replacing a faulty alternator, battery, wiring, or anything in between.

In some cases, we may need to remove and replace entire sections of wiring if they are damaged or corroded. This process can be time-consuming and requires a great deal of skill to complete correctly, so we’ll advise you if this becomes the case so there are no surprises. We may also need to reprogram the truck's computer system after any repairs have been made to ensure that everything is functioning correctly, in addition to running standard tests to ensure all the relevant signals are going where they’re supposed to.

Maintaining the Electrical System

Regular maintenance is critical to ensuring that the electrical system in fleet trucks continue to function correctly. This includes regular inspections of the battery, alternator, and wiring connections to ensure they are in good condition. We’ll also check the charging system to ensure the battery receives enough charge to function correctly.

Routine maintenance can help to prevent many electrical system failures before they occur. This includes replacing the battery and alternator before they fail, saving truck owners money in the long run.

Why Choose Santin Auto & Truck Repair?

The electrical system is a critical component of a diesel truck's performance. Diagnosing and repairing electrical system issues can be challenging and requires extensive knowledge and skill. Additionally, regular maintenance is critical to preventing electrical system failures before they occur. When choosing a diesel truck repair shop for electrical system repair and maintenance services, it's essential to choose a shop with experience working on these complex systems. Santin Auto & Truck Repair has the experience, knowledge, and equipment necessary to diagnose and repair any electrical system issues. Call us today to schedule an appointment.

Santin Auto & Truck Repair Center

Commercial Truck & Auto Repair Services

Our full-service truck repair shop offers top rated commercial truck & auto repair services for all types of cars & trucks. Our experienced mechanics are equipped with the latest tools and technology to ensure your vehicle is back on the road in no time.

Customer Reviews

What our customers say about our light, medium & heavy-duty repair services.

Service was great and fast. Esteban came quickly to fix my flat tire and it took no time at all. He is excellent at what he does and was happy to help. Highly recommend
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Brett Noble

Esteban provided hands down the best customer service. My uhaul vehicle broke down and he was unable to fix it, it needed a tow. Esteban ensured I was safe and in a good place with uhaul sending a tow before he left. He even went out of his way to get me water and snacks since I have been on the side of the road for 3 + hours. There are good people in this world and Esteban is one of them. Amazing service and an even better human being.
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Sebastian Castillo

Absolutely the best service experience ever! EJ did an amazing job getting me back on the road quickly. Highly recommend them for your car care and road service needs. Thank you!
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Jeremy O'Neal

Contact Us

Looking for reliable truck, fleet or auto repair services? Get in touch with Santin Auto today to schedule service!

9822 Perrin Beitel Rd San Antonio, TX 78217
Santin Auto & Truck Repair Center