Purpose
The system piping connects each related part of the refrigerant system.
Construction
Block-type piping has been adopted to the pipe connection, improving the efficiency of piping related servicing.
The pipes in the piping system consist of the following parts.
Cooler hose (HI)
Cooler hose (LO)
Cooler pipe
The pipes in the piping system are made of aluminum alloy and the hoses are made of rubber (flexible hose).
A high-pressure charging valve is located on the cooler pipe (HI) and a low-pressure charging valve is located on the cooler pipe (LO).

Fail-safe
Function not equipped.
Refrigerant Charging
Refrigerant Line Removal/InstallationClimate Control Unit Disassembly/Assembly [Manual Air Conditioner]
1. Disassemble in the order indicated in the figure.
1
Dial
2
Airflow mode wire
(See Wire Removal Note.)
(See Wire Installation Note.)
3
Air mix wire
(See Wire Removal Note.)
(See Wire Installation Note ...
Condenser Inspection
1. Inspect the condenser for cracks, damage, and oil leakage.
If there is any malfunction, replace the condenser.
2. Visually inspect for bent fins for clogging of foreign material.
If any fins are clogged, remove the foreign material.
3. Visually inspect for bent fins.
...
Heated Oxygen Sensor (HO2 S) Heater Control
Outline
Based on the control of the HO2S heater, a stabilized oxygen concentration
is detected even at low exhaust temperatures, and feedback control of fuel injection
even at cold engine start is made possible for improved cold temperature exhaust
emission performance.
Both ...