| Component Location |

| 1. Engine room junction block |

| 1. ICU (Integrated Central Control Unit) |
Repair procedures Inspection1.Disconnect the negative (-) battery terminal.2.Pull out the relay from the engine compartment relay block.Power Relay (Type A) Check for continuity between the terminals.
Repair procedures Oil Specification1.The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed.2.Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the model of compressor.
Description and operation DescriptionThe evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling. The evaporator temperature sensor has the Negative Temperature Coefficient (NTC).