What is the meaning of transmission codes?
2 Answers
The meanings of transmission codes are as follows: Meanings of type and drive method: Generally, the letter A represents an automatic transmission, and the letter M represents a manual transmission. The letter F usually indicates front-wheel drive, and the letter R indicates rear-wheel drive. However, there are exceptions, such as Toyota using numbers to denote the drive method. Some four-wheel-drive vehicles have the letters H or F appended to the model number to indicate this. Meanings of control type: This mainly indicates whether the transmission is electronically controlled, hydraulically controlled, or electro-hydraulically controlled. Electronically controlled transmissions are generally represented by the letter E, hydraulically controlled by the letter L, and electro-hydraulically controlled by the letters EH.
My car's warning light came on a few days ago, and I've specifically researched this transmission code issue. Simply put, it's a special number generated by the vehicle's computer when it detects transmission abnormalities, essentially labeling the fault. For example, code P0700 usually indicates a general transmission control system malfunction, while P0715 might mean the input shaft speed sensor is faulty. These alphanumeric combinations all have corresponding explanations in repair manuals and can be read by plugging in a diagnostic tool. Different car models have slightly varying code systems - for instance, Volkswagen's 09G transmission and Toyota Aisin use different coding rules. I'd advise average car owners not to guess blindly but to get the codes read at a repair shop as soon as possible, especially since it involves powertrain safety.
