Circuit Description
WARNING: This page is about a different car, the 2005 Suzuki Reno and 2005 Suzuki Forenza. However, it is still accessible from the selected car via links, so may be relevant.
The transmission control module (TCM) is an electronic device which monitors inputs to control various transaxle functions including shift quality and transaxle sensors, switches, and components to process for use within its' control program. Based on this input information, the TCM controls various transaxle output functions and devices.
DTCs P0725, P0726 and P0727 are related to the same circuit. These DTCs will not illuminate the MIL, however, the DTC will be stored in memory.
Information transmit between TCM and ECM through the CAN line, information is as follows :
- Engine Malfunction Signal.
- Engine Speed.
- Engine Output Torque Reduction Signal.
- Engine Coolant Temperature.