| Component Location Index |

| 1. Expansion valve 2. Service port (Low pressure) 3. Service port (High pressure) 4. Discharge hose | 5. Suction & Liquid tube assembly 6. Electric A/C compressor 7. Condenser |

| 1. Auto defogging sensor 2. Photo sensor | 3. Heater & A/C control unit 4. Heater & Blower unit |
Refrigerant System Service BasicsRefrigerant Identification• Do not mix HFO-1234yf (R-1234yf) in the vehicle with other refrigerant, such as R-12, R-134a and etc.
Oil Specification1.The HFC-134a system requires synthetic (POE) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed.
Description The photo sensor is located at the center of the defrost nozzles.The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light receiving portion, generates an electromotive force in proportion to the amount of radiation received which is transferred to the automatic temperature control
Replacement1.Remove the battery (-) terminal.2.Remove the engine room under cover.(Refer to Engine Mechanical System - "Engine Room Under Cover")3.Remove the heater hose (A) and AEWP hose (B).4.Disconnect the lock pin to remove the heater hose pump connector (A).