Let’s say your vehicle shifts to another gear without any prior notice, it’s most likely a problem with the TCM. It could also shift when you don’t intend to. So, if a vehicle control module is bad, you’d notice an irregular or hard shifting. Irregular gear shiftingĪn automatic transmission system depends on the control module to shift the gear. If you’re good with mechanical tools, you can simply diagnose the vehicle for trouble codes with a scan tool, otherwise, you should ask for the help of a mechanic without delay. However, if you start noticing any unusual changes or malfunction with the shifting, it’s usually because of a bad transmission control module. When this warning light shows up on your dashboard, there could be several reasons for this. Symptoms of a bad transmission control module Engine warning signal This is when you need to pay close attention to the signs.
When this happens, other transmission components of the vehicle start malfunctioning. Usually, what causes a transmission control module to fail is voltage overload. This is a component of your vehicle that sends out signals and helps your vehicle choose the gear that is best for it. Now you ask, “what does a transmission control module do?” It’s simple. Several parts of a vehicle perform vital functions in making your journey as pleasant as possible, and this control module is an important one. It’s a computer that communicates with other components of the vehicle and helps regulate gear shifting. This is a vital part of a vehicle that works in harmony with other transmission system components.
#Transmission control module how to#
Still, ignoring these symptoms can be dangerous and can result in catastrophic damages if you continue using the vehicle.īefore we start discussing what happens when a transmission control module goes bad and how to fix it, you must understand this part of the vehicle you’re dealing with. There are some symptoms of a bad transmission control module that are quite obvious, while others require paying close attention to the vehicle. If this control module develops a fault or starts showing some negative symptoms, you must pay attention to it and fix it without delay. Vehicles with automatic transmission usually have a control module that tells other parts of your vehicle what to do – most importantly the gear.
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