System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
| Sensor | Input signal to ECM | ECM function | Actuator |
|---|---|---|---|
| ASCD steering switch | ASCD steering switch operation | ASCD vehicle speed control |
|
| Brake pedal position switch | Brake pedal operation | ||
| Stop lamp switch | |||
| TCM | Park/neutral position signal | ||
| Output shaft revolution signal* | |||
| Combination meter | Vehicle speed signal* |
*: This signal is sent to the ECM via the CAN communication line
BASIC ASCD SYSTEM
- Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed without depressing accelerator pedal. Driver can be set the vehicle speed in the set speed range.
- ECM controls throttle angle of electric throttle control actuator to regulate engine speed.
- Operation status of ASCD is indicated in combination meter.
- If any malfunction occurs in the ASCD system, it automatically deactivates the ASCD control.
Refer to Switch Name and Function for ASCD operating instructions.
CAUTION:
Always drive vehicle in a safe manner according to traffic conditions and obey all traffic laws.