Where is the CAN transmission module located in the Besturn B50?
4 Answers
The CAN transmission module in the Besturn B50 is located under the instrument panel and connected to the engine control unit. Relevant information about the transmission is as follows: 1. Transmission: Also known as a gearbox, it is an automotive component used to alter the speed and torque from the engine, and can fix or change the gear ratio between the output and input shafts. 2. Classification: Transmissions can be categorized into stepped, continuously variable, and integrated types, featuring functions such as enabling reverse driving, interrupting power transmission, and changing gear ratios. The main functions of the transmission include: 1. Changing the gear ratio: Expanding the range of torque and speed variations of the driving wheels to adapt to frequently changing driving conditions, while allowing the engine to operate under conditions conducive to higher power and lower fuel consumption. 2. Reverse driving: Enabling the vehicle to move backward while maintaining the engine's rotation direction. 3. Power output: Utilizing neutral gear to interrupt power transmission, allowing the engine to start, shift gears, and facilitating gear changes or power output.
Locating the CAN transmission module on the Besturn B50, I recall it's typically hidden in the engine bay or beneath the center console. Having disassembled several older B50 models myself, most mount the module near the firewall in the main control area—visible after lifting the black plastic cover under the steering wheel. Some newer designs might relocate it beside the transmission housing, directly connected to the shift mechanism. If you're checking it yourself, I recommend disconnecting the battery first for safety, then tracing along the transmission wiring harness. The module itself is compact, with a metal label making it easily identifiable. During repairs, water ingress causing short circuits is a major concern, so regular maintenance should include clearing debris from the engine bay. Frequent gear shifts in traffic also warrant attention to module cooling.
I know this issue well. The location of the CAN transmission module in the Besturn B50 actually depends on the specific model year. Earlier models generally have it tucked under the driver's seat—just remove the carpet cover plate, and you'll spot it secured with several screws against the chassis. Later models reportedly moved it to the top of the transmission, protected by a waterproof housing. For DIY inspection, remember to prepare a multimeter to check circuit continuity. Pin oxidation is a common issue, especially in northern winters when road de-icing agents corrode the connectors. If you experience severe gear-shifting jerks, there's an 80% chance it's the module failing—get it checked promptly before the entire transmission gives out.
The CAN module that controls gear shifting in the Besturn B50 is mostly located behind the steering wheel on the instrument panel frame. You'll need to crouch and reach in to access it. In some high-end versions, it might be integrated near the engine control unit. Be careful with the connector clips during disassembly—the plastic parts can become brittle with age and snap easily. The module itself is connected to the transmission oil temperature sensor wiring. If you're dealing with a used B50 that's been waterlogged, this area is guaranteed to have rust.
