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Auto Electronics Repair

Reliable Electronic System & Diagnostic Services for Your Vehicle

Your vehicle's electronic systems are crucial for a seamless driving experience. Ensuring their correct functioning is vital to prevent inconvenience or compromised safety. At Walnut Smog and Repair, our experienced technicians not only repair electronic systems efficiently but also offer cutting-edge vehicle diagnostic services. Trust us for comprehensive solutions that ensure your vehicle runs smoothly from diagnosis to repair, providing peace of mind on the road.


electronic and diagnostic car repair service

Our electronic services include:


Check Engine Light
Seeing the "Check Engine" light on your dashboard can raise concerns, signaling anything from a minor issue like a loose gas cap to more serious problems such as a malfunctioning catalytic converter. At Walnut Smog and Repair, our skilled technicians can quickly read the diagnostic code and determine the exact cause of the alert. For prompt and precise problem resolution, don't hesitate to contact us at 626-449-6252 or visit our facility in Pasadena.

Computer Reflashing
At Walnut Smog and Repair, we provide computer reflashing services, an essential update procedure that installs the latest software on your vehicle's computer. These updates from manufacturers enhance aspects like drivability and fuel efficiency and are critical for maintaining your vehicle's performance. Located in the Pasadena area, our shop uses the latest technology to ensure your vehicle receives all necessary software enhancements.

Diagnostics
Our expert mechanics specialize in comprehensive diagnostics of all electronic components of your vehicle. For thorough and professional diagnostic services, consider Walnut Smog and Repair your go-to solution.

Drivability
Drivability concerns the smoothness and stability of your vehicle's acceleration, monitored by onboard computers analyzing sensor data. If you notice any irregularities in your vehicle's performance, our technicians are equipped to diagnose and rectify any issues, ensuring optimal operation.

Engine Controls
The engine control system is crucial for managing your vehicle's exhaust emissions and optimizing fuel efficiency. Regular maintenance of this system is essential to leverage your vehicle's advanced capabilities. For any concerns regarding engine controls, contact Walnut Smog and Repair to ensure they are functioning perfectly.

Vehicle Computers
Modern vehicles incorporate sophisticated computers that manage essential functions like engine and transmission efficiency. These computers process data from various sensors to optimize settings for components such as spark plugs, idle speed, and fuel injectors. Regular checks and updates are crucial to ensure these computers function optimally. Should your vehicle's computer systems fail, immediate attention and possibly replacement are necessary to maintain performance and safety.


Auto Diagnostic FAQs


How do vehicle diagnostic systems work?

OBD stands for On-Board Diagnostics and is a sophisticated computer that collects vital information from a network of sensors, monitoring engine performance, emissions, and other key functions. It not only regulates various car systems but also acts as a diagnostic tool, alerting you to potential problems before they become major issues.

How long does a car diagnostic last?

While a basic diagnostic test typically wraps up in 1-1.5 hours, complex issues demanding further examination and component access/testing can extend the process to 2-3 hours. The length ultimately depends on the severity of the problem and the potential presence of multiple underlying culprits.

What is included in a car diagnostic test?

Diagnostic tests are like X-rays for your vehicle, utilizing specialized equipment to scan its complex systems and components like the engine, transmission, and throttle. From minor oil tank issues to intricate electrical glitches, these tests diagnose a wide range of potential problems. However, interpreting the data they generate requires trained professionals, making dealer shops and skilled mechanics your best bet for accurate diagnoses.



To learn more about our Electronic & Diagnostic services, call us at 626-449-6252 or request a quote by clicking below:


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Discover More About Electronics Repair Services At Walnut Smog and Repair in Pasadena

Electrical Repair Services

Contact Us Today!

Got questions? We've got answers! Drop us a line, give us a call, or even stop by. Our team is eager to help you with any auto repair needs you have. Let's get you back on the road safely and swiftly!

What Our Customers Are Saying

Great service the gentleman is very king and professional provides great service and your in and out quickly, I recommend this place.

Inspections and Emissions, near Pasadena, CA

, 09/05/2025

My 2015 Nissan Rogue was due for its Smog Check. My check engine light was on when I brought it in. I had the light checked at auto supply store and they said that the oxygen sensor was bad. Arthur looked at the printout paperwork and said that that may not be the problem. He popped the hood and he found the problem within less than a minute. One of the hoses was not connected to the engine. After another diagnostic check found that there may another issue but suggest that I drive a few miles to reset the emissions computer. After I drove the recommended miles I had the car smog check and it passed. I've brought in a number of cars we've had to Arthur. He is very honest, friendly and knowledgeable. I highly recommend anyone to bring their vehicle to this establishment. Definitely 5 stars.

Inspections and Emissions

, 08/14/2025

Service was very fast for my 2016 Avalon. The facility was clean with comfortable seating. Highly recommend this place for your smog check needs!

Inspections and Emissions, near Pasadena, CA

, 06/05/2024

Easy, Fast, and professional. I was in and out in under 10 minutes.

Inspections and Emissions, near Pasadena, CA

, 10/25/2023

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