System Description
SYSTEM DIAGRAM
| Components | Function |
|---|---|
| Crankshaft position sensor | Crankshaft Position Sensor |
| Exhaust Camshaft Position Sensor | Exhaust Camshaft Position Sensor |
| Engine coolant temperature sensor 1 | Engine Coolant Temperature Sensor |
| Accelerator Pedal Position Sensor | Accelerator Pedal Position Sensor |
| Battery | ECM receives the battery voltage signal. |
| Refrigerant pressure sensor | Refrigerant Pressure Sensor |
| EPS control unit | ECM receives the EPS operation signal via CAN communication. |
| Combination meter | ECM receives the vehicle speed signal via CAN communication. |
| A/C auto amp. | ECM receives the signal via CAN communication.
|
| ECM | ECM |
| IPDM E/R | ECM transmits the cooling fan control signal via CAN communication. |
| Cooling fan control module | Cooling Fan |
| Cooling fan motor |
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.Under the following conditions, the air compressor is turned off.
- When the accelerator pedal is fully depressed (selector lever is in R position).
- When cranking the engine.
- At high engine speeds.
- When the engine coolant temperature becomes excessively high.
- When operating power steering during low engine speed or low vehicle speed.
- When engine speed is excessively low.
- When refrigerant pressure is excessively low or high.