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Engine/CVT Integration Control (CAN Communication Control) In order to improve gearshift feeling and to perform controls such as prevention of engine slowdown, engine power TCM sends information such as fast slowdown signals, lock-up signals, torque down request signals to ECM, while Fail-safe Function If an unexpected signal is sent from any sensor, switch, solenoid etc., this function controls the CVT to make driving Secondary Speed Sensor The shift pattern is changed in accordance with throttle position when an unexpected signal is sent from the output Primary Speed Sensor The shift pattern is changed in accordance with throttle position and secondary speed (vehicle speed) when an PNP Switch If an unexpected signal is sent from the PNP switch to the TCM, the transaxle is put in “D”. Fluid Temperature Sensor If an unexpected signal is sent from the fluid temperature sensor to the TCM, the gear ratio obtained immediately Secondary Pressure Sensor If an unexpected signal is sent from the secondary pressure sensor to the TCM, the secondary pressure feedback Line Pressure Solenoid If an unexpected condition of the solenoid is detected by the TCM, the line pressure solenoid is turned OFF to Secondary Pressure Solenoid If an unexpected condition of the secondary solenoid is detected by the TCM, the secondary pressure solenoid is Lock-up solenoid If an unexpected condition of the lock-up solenoid is detected by the TCM, the lock-up solenoid is turned OFF to Stepping Motor If an unexpected condition of the stepping motor is detected by the TCM, the stepping motor coil phases “A” Lock-up/Selection Switching Solenoid If an unexpected condition of the solenoid is detected by the TCM, the lock-up/selection switching solenoid is turned PM ELECTRONIC CONTROL MODULES - SERVICE INFORMATION 8E - 199 |