DESCRIPTION OF AIR CONDITIONER — Acceleration Cut System
HA-28wiring diagramA/C relay split between Europe (E) and Except Europe (G) variants.
Acceleration Cut System
This system is controlled by the E.C.C.S. control unit.
IMPORTANT
When the engine is heavily overloaded (throttle sensor judges that throttle valve is at full throttle position or engine speed is more than 6,500 rpm), the compressor is turned off for approx. 5 seconds to reduce overloading.
A/C acceleration cut wiring
Components (14)
Ignition switch (ACC or ON)Battery (via fusible link Green)A/C relayThermo control ampEvaporator thermistorA/C switchDEF switchDual-pressure switchCompressor clutch coilFan switchThrottle sensorCrank angle sensorE.C.C.S. control unit (issues compressor cut signal)To condenser fan motor (via thermo-switch)
NOTE
Variant markers in the schematic: (G) = Except for Europe; (E) = For Europe; (L) = For L.H. drive model.
| Specification | Value |
|---|---|
| Compressor cut engine speed thresholdOr full throttle position (per throttle sensor). | > 6,500rpm |
| Compressor cut duration | ≈ 5seconds |
Compressor cut engine speed thresholdOr full throttle position (per throttle sensor).
> 6,500rpm
Compressor cut duration
≈ 5seconds