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
Super guys here!! Very knowledgeable,...
Jacquelyn Warrilow
Super guys here!! Very knowledgeable, never hesitant to explain things. Highly recommend!
Date: July 20, 2024
Website: Google
Matt and cam went above...
Braeden Prosser
Matt and cam went above and beyond for me, would recommend
Date: July 20, 2024
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Honesty and fair pricing and...
Sam Mugze
Honesty and fair pricing and fantastic staff.
Date: July 19, 2024
Website: Google
10/10 all around! Needed a...
Tabetha Deschamps
10/10 all around! Needed a CVT transmission replaced in my 2012 nissan versa and couldn't ask for a better person such as Gary to get the job done right. Keep up the great work 😀
Date: July 18, 2024
Website: Google
Best customer service and prices....
Sam Mugze
Best customer service and prices. Thanks Ken and your crew. Oh and Happy Birthday Ken 🍻
Date: July 17, 2024
Website: Google
Top service from friendly staff....
Nancy Sievert
Top service from friendly staff. They know their stuff and I appreciate them taking the time to explain not just the car's problem but the solution and why. Especially appreciate that they look to the future, how to negate something from happening, not just "slapping together" a temporary fix. Definitely recommend them.
Date: July 17, 2024
Website: Google
Super great help yesterday both...
Gro R
Super great help yesterday both Shawna and Dave. I was sent from Canadian Tire to Mister Transmission to have my Transmission checked and they checked and it was fine. (No appointment and no charge) It turned out some work I had had done at Canadian Tire may have had a defective part installed, so now setting up a new appointment with them to correct the issue. Canadian Tire South side calling to set the appointment up for me.
Date: July 17, 2024
Website: Google
Great first experience here about...
Tyl Couli
Great first experience here about a month ago, they help me out with something they didn't have to. Did not get any work done but will in future if needed
Date: July 17, 2024
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They made sure everything was...
Randy Plourde
They made sure everything was perfect, took great care of my car and great staff.
Date: July 17, 2024
Website: Google
Very happy with the Service,...
J R
Very happy with the Service, The Service Manager was great, the Tahoe drove better than I expected with the maintenance service.
Date: July 17, 2024
Website: Google
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