Input/Output Signal Of TCM
WARNING: This page is about a different variant/trim than selected.
INPUT/OUTPUT SIGNAL OF TCM
| Sensors, switches and solenoid valves | Function | |
|---|---|---|
| Input | PNP switch | Detects select lever position and sends a signal to TCM. |
| Throttle position sensor [accelerator pedal position (APP) sensor] | Detects accelerator pedal position and requested throttle opening and sends a signal to TCM. | |
| Engine speed signal | From ECM. | |
| A/T fluid temperature sensor | Detects transmission fluid temperature and sends a signal to TCM. | |
| Revolution sensor | Detects output shaft rpm and sends a signal to TCM. | |
| Vehicle speed sensor | Used as an auxiliary vehicle speed sensor. Sends a signal when revolution sensor (installed on transmission) malfunctions. | |
| Overdrive control switch | Sends a signal, which prohibits a shift to "D4" (overdrive) position, to the TCM. | |
| ASCD control unit | Sends the cruise signal and "D4" (overdrive) cancellation signal from ASCD control unit to TCM. | |
| Stop lamp switch | Releases lock-up system when depressing pedal in lock-up condition. | |
| Output | Shift solenoid valve A/B | Selects shifting point suited to driving conditions in relation to a signal sent from TCM. |
| Line pressure solenoid valve | Regulates (or decreases) line pressure suited to driving conditions in relation to a signal sent from TCM. | |
| Torque converter clutch solenoid valve | Regulates (or decreases) lock-up pressure suited to driving conditions in relation to a signal sent from TCM. | |
| Overrun clutch solenoid valve | Controls an "engine brake" effect suited to driving conditions in relation to a signal sent from TCM. | |
| O/D OFF indicator lamp | Shows TCM faults, when A/T control components malfunction. |