System Diagram
System Description
REFRIGERANT CYCLE
Refrigerant Flow
The refrigerant from the compressor flows through the condenser and liquid tank, evaporator, and returns to the compressor. The refrigerant evaporation in the evaporator is controlled by an expansion valve.
Freeze Protection
To prevent evaporator from freezing up, the evaporator air temperature is monitored and the voltage signal to the A/C auto amp. makes the A/C relay go OFF and stop the compressor.
REFRIGERANT SYSTEM PROTECTION
Refrigerant Pressure Sensor
Pressure Relief Valve
The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.
The release port on the pressure relief valve automatically opens and releases refrigerant into the atmosphere when the pressure of refrigerant in the system increases to an unusual level [more than 3,800 kPa (38.8 kg/ cm2, 551 psi)].
Connecting Procedure
Connecting Procedure
NOTE:
The connecting procedure must be performed
when the vehicle is stationary. If the
vehicle starts moving during the procedure,
the procedure will be cancelled.
Press the [ ] button
on the control
panel.
Touch the “Settings” key.
T ...
Power supply and ground circuit
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis
Procedure
Regarding Wiring Diagram information, refer to BCS-50, "Wiring Diagram".
1. CHECK FUSE
Check that the following fuse is not blown.
Is the fuse blown ...
System
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM : System Description
SYSTEM DIAGRAM (WITH INTELLIGENT KEY SYSTEM)
SYSTEM DIAGRAM (WITHOUT INTELLIGENT KEY SYSTEM)
COMBINATION METER INPUT/OUTPUT SIGNAL (CAN COMMUNICATION SIGNAL)
Input signal
Output signal
BCM INPUT/OUTPUT SIGNAL (CAN ...