Transmission/Transaxle Controls

Automatic Transmission (A/T) models are equipped with an electronic Transmission Control Module (TCM). TCM receives input signals from the ignition coil (RPM signal), idle switch (on-off signal), throttle 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 AUTO TRANS DIAGNOSIS article.