What does P0700 Transmission Control Module Malfunction mean?

[SanKhloe]

P0700 Transmission Control Module Malfunction indicates a transmission failure, with the yellow or red engine symbol lighting up on the dashboard. Causes of the malfunction: insufficient or poor-quality gear oil; severe wear on gear tooth surfaces, leading to excessive meshing clearance; fatigue spalling or chipping of gear teeth; excessive wear on the intermediate shaft and secondary shaft, or severe wear on spline shafts and internal gear splines, causing excessive clearance; bent shafts or loose locking components on the shaft; loose bearings or damaged bearing cages; contact and friction of non-working parts of the shift fork, among other factors. When a P0700 fault occurs, the vehicle should be promptly sent to a repair shop for computer diagnostics to identify the cause. Clearing the fault code: After troubleshooting the vehicle, it is generally necessary to clear the fault code. When clearing the fault code, it is essential to follow the specified clearing method for the corresponding vehicle model. Do not directly disconnect the negative battery cable to clear the fault, as this may cause the control computer of some models to lose stored data and result in the loss of certain functions.