Working Hours
  • Mon 7:00AM - 5:30PM
    Tue 7:00AM - 5:30PM
  • Wed 7:00AM - 5:30PM
    Thu 7:00AM - 5:30PM
  • Fri 7:00AM - 5:30PM
    Sat Closed
  • Sun Closed
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Auto Electronics Repair

Don't neglect your vehicle's electronic systems - trust our experts to repair your vehicle properly the first time around! A poor driving experience can often be related to a malfunctioning computer or driving controls. Come to John's Automotive Service to ensure your vehicle is in top driving condition.

Our electronic services include:

Diagnostics
Mechanics at John's Automotive Service are able to diagnose all the electronic parts in your car. For expert diagnostics services on your car's electronic devices, visit John's Automotive Service today.

Check Engine Light
No one likes to see their car's "Check Engine" light come on. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. At John's Automotive Service, we can pull the code and diagnose the problem for you. Give us a call at 319-396-4206 or stop by the shop for our expert assistance.

Computer
Today, car manufacturers include at least one computer in motor vehicles. This computer's main function is to monitor and adjust engine and transmission operations. The computer receives input information from different sensors. The computer controls spark plugs, idle speed, and fuel injectors so as to get you the best possible car performance. Failure of the car computer will greatly affect the things it controls. To get the most out of your car's computer, have it evaluated regularly for updates and proper operation. If it is already failing, have it repaired or replaced. To have your car's computer handled by experts, visit John's Automotive Service in Cedar Rapids, IA 52405 today.

Computer Reflashing
John's Automotive Service has state-of-the-art equipment to provide computer reflashing to our customers in the Cedar Rapids area. The primary reason to reflash a computer (which basically means updating or reinstalling its software) is that an update has been issued by the manufacturer. It's a very simple procedure, and there may be minor updates that the car hasn't had. The manufacturer may have tweaked the transmission-shifting algorithm or some other parameters that are not crucial but may bring slight improvements to drivability, mileage or emissions. Since auto manufacturers are coming out with automobile updates every day, there may be a reprogram available for your vehicle. Stop by John's Automotive Service or call us at 319-396-4206 to schedule an appointment!

Drivability
Drivability is the degree of smoothness and steadiness of your car's acceleration. Most modern cars are fitted with on-board computers that continuously check the readings from various sensors. In case of drivability problems, you will receive a warning message on your car's dashboard. To have your car diagnosed for drivability issues, visit John's Automotive Service in Cedar Rapids, IA 52405 today. At John's Automotive Service, we have the necessary tools, training, and technology to diagnose and address your car's drivability issues.

Engine Controls
Basically, an engine control system is an on-board computer in your car. Like all computers, the engine controls are composed of hardware and software. Automotive engine control systems are responsible for regulating exhaust emissions, and providing increased fuel economy. To get the best out of your car's incredibly powerful technology, make sure engine controls are working properly. To check if your car's engine controls are working properly, call John's Automotive Service today.


What Our Customers Are Saying

Great people and great service! Would recommend to anyone!


-Aaron B.

Great place to take your vehicle if you are looking for trust worthy service at a very competitive price. The staff is reliable, honest, prompt, and most importantly, knowledgeable. I have serviced my car here several times now and will continue to come back in the future because of their quality service and friendly atmosphere.


-Mark K.

As usual, the service is excellent, the prices are very good, and the information provided is always right on target. I have never had anyone there try to sell me anything I didn''t need. I have been a customer for a number of years. For as long as I am able to drive, I will always depend on John's Auto Service.


-Robert S.

I've been a long time customer. Business as usual. Staff took the time to get an accurate diagnosis without guessing.


-Ron N.

I do enjoy the rewards of being a car club member at John's Automotive! I actually left John"s Auto and I didn't have to get my card out to pay the bill. It was all covered by my Car Club membership. It pays to be loyal customer at John"s Automotive. I have received excellent care car!


-Peggy M.

I've been going to John's Automotive Service for about 5 years and have always been treated with respect. Bob, Al and the team do what repairs are required and do not try to up-sell you on things that are not needed. I do a lot of my own repair work, but I take it to John's when I need added expertise, special tools or just don't want to do it.


-Scott S.

The team at John's Automotive are knowledgeable, friendly and trustworthy. They always leave me feeling that they have my best interests at heart. Never fun to spend money on car repairs but it helps when you know you are getting value.


-Thomas G.

As always, John's Auto provided the quality service I have come to expect from them. They finish on time and in budget. I love the use of their loaner car as well. No upselling of additional services, but they will keep an eye on possible needs in the future.


-Josh W.

I absolutely love the people and service at John's Automotive Service. They are friendly, thorough, fair, and honest. They work around my schedule and always help to make sure I'm getting the best deal. They have an outstanding rewards program. I would highly recommend John's to anyone needing anything from minor to major repairs and service.


-Natalie I.

I can only give John's Automotive five stars for their service. They're knowledgeable, they are patient in explaining what and why I need work on my vehicle. They don't look at me or talk to me like I'm just a female, and not worth their time. They are people friendly, which is also important to me. Last fall they even went above and beyond 'the call of duty'. After they had finished working on my truck, I rode my recumbent trike to their shop to pickup the truck. I had just bought the transport rack and was still learning how to load the trike. They volunteered to help me get the trike loaded. As a matter of fact, one of the mechanics even helped adjust the rack to fit the trike better. Some places would just say ... To bad: it's your problem. Not the personnel at John's ... They wanted to make sure both I and my trike were safe. My father has been gone for years and my brothers and son do not live close. It is really nice to feel secure in the fact that I have mechanics who will give me good advice without taking advantage of me and at the same time, give me qualîty work that they stand behind. Thanks to all personnel at John's Automotive.


-Diane K.
  • ASE Master Technician
  • Mitchell1
  • Car Care Aware
  • Call Us For Service: 319-396-4206