Transmission Systems: Computer Diagnostics

By Mister Transmission

Keeping your transmission in tip-top shape calls for computer-savvy technicians and advanced transmission scan tools

When the first semi-automatic transmissions were introduced in select vehicle models in the late 1930s, few motorists could’ve known they were witnesses to the start of an evolution in how transmissions are built. More than 70 years later, the transmissions in our vehicles today are complex machines that are an intricate blend of mechanics, hydraulics, and electronics. Inspecting, maintaining, and repairing them requires the use of sophisticated transmission diagnostic tools by a professional trained in the use of high-tech systems as well as mechanical know-how.

The Complexity of Transmission Processes

Regardless of the domestic or imported vehicle you drive its transmission system is governed by an onboard computer. When something goes awry with your transmission – or if you suspect something is wrong – repair technicians rely on high-tech diagnostic tools to determine what may be wrong with it.

The mechanical components of a transmission still exist. However, each one is managed and monitored by the onboard computer. Conceivably, that makes transmission maintenance and service more complex in nature. In fact, it’s more beneficial for both car owners and automotive technicians: modern, computer-controlled transmissions provide drivers with more control of their vehicles, and it eases repair technicians’ diagnostic and service processes.

The computer running the transmission system sends and receives information about the transmission’s performance and operation. Technicians, using digital scanning tools, decipher that information to determine what the cause is of any potential transmission problem.

Reporting Faults and Error Codes

If your vehicle’s transmission system is experiencing an issue, it will log what’s known as an error fault code in the car’s onboard computer. If there your car does have a malfunctioning transmission, the technician’s scan tool will receive that error code, which will identify there is a problem. However – and this is where traditional automotive repair smarts and experience come into play – the technician will need to make a comprehensive assessment of the transmission system to figure out what is going wrong.

The good news is, knowledge is power. Once your repair technician has identified what’s impacting your transmission, they can correct it quickly, and get you and your vehicle back on the road.

And remember: the best way you can avoid a transmission failure is by ensuring preventative maintenance is performed regularly on your vehicle by a knowledgeable professional.

If you have a question about your transmission or want to book a service appointment, contact the Mister Transmission service centre nearest to you.

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Customer Reviews
I came in feeling nervous...
Anna Vanderhorst
I came in feeling nervous that I had a transmission issue and he stopped what he was doing, took it for a drive and diagnosed the problem for me. Friendly, professional and excellent service!
Date: March 20, 2024
Website: Google
Just got my car fixed...
Juan Medina
Just got my car fixed from there, The team is fantastic I would highly recommend them to anyone
Date: March 20, 2024
Website: Google
George was so kind was...
Fady Bishay
George was so kind was me when I came and he fixed my transmission and be gave me the best price ever. He is very honest man . i recomend this place especially George and his team
Date: March 20, 2024
Website: Google
I brought my Ram 3500...
Landon McKerchar
I brought my Ram 3500 in for a rear differential rebuild. There were initially some faulty parts that were installed but when I brought the truck back Jamie went above and beyond to make sure everything was fixed properly and free of charge. Great customer service!
Date: March 20, 2024
Website: Google
Best customer service and quick...
Cyndie Moore
Best customer service and quick response time. Had my car back on the road in 3 business days. Ashley is the BEST, she kept me updated on the progress.
Date: March 18, 2024
Website: Google
Excellent service. Brian and other...
Navjot Kaur
Excellent service. Brian and other team members were very helpful. They gave honest advice for my vehicle and I can’t thank them enough for saving my thousands of dollars on repair.
Date: March 16, 2024
Website: Google
Jamie and the staff went...
DARIN GEAKE
Jamie and the staff went above and beyond to help me get my car fixed. I have a Subaru that was having issues and they spent a lot of time making sure everything was done correctly. Even though they did extra work and got extra parts to make it work, he stuck to his original quote (which btw was almost half of what I was quoted by a different shop). I would recommend Mr. Transmission to anyone!!!
Date: March 15, 2024
Website: Google
Excellent help! Chris had his...
Steve Vandevelde
Excellent help! Chris had his guys test and inspect my transmission for free. Knowing that I preferred to save money by doing as much as possible myself, they gave me all sorts of advice, laying out the pros and cons for my choice. I trust these guys. I recommend this shop.
Date: March 15, 2024
Website: Google
Mark and his staff are...
Ryan Rose
Mark and his staff are the BEST!!! Kind, knowledgeable, transparent. Will gladly take any and all of my future business to him and his exceptional team.
Date: March 15, 2024
Website: Google
Amazing customer service! Super friendly!...
Cynicalest T
Amazing customer service! Super friendly! Family owned by mark and son both awesome people!
Date: March 15, 2024
Website: Google
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