Transmission/Transaxle Controls

Automatic Transmission (A/T) models are equipped with an electronic Transmission Control Module (TCM). TCM receives input signals from ECM (RPM signal), idle switch (on-off signal), throttle position sensor (variable signal) and full throttle switch (on-off signal). Based on these values, the TCM calculates optimum timing and duration to energize shift solenoids, overrun clutch solenoid and lock-up solenoid. TCM also indicates when Overdrive (OD) is engaged, by illuminating the OD indicator light.

For more information on TCM, transmission or transaxle controls, refer to appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.