| Circuit Diagram |

Description • Line pressure control solenoid valve is a Variable Force Solenoid (VFS) type. • When TCM supplies variable current to solenoid valve, line pressure is controlled by solenoid valve.
Inspection 1. Turn ignition switch OFF. 2. Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery") 3. Disconnect the solenoid valve connector (A).
Oil Specification 1. 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.
Inspection 1. Ignition "OFF". 2. Disconnect evaporator temperature sensor. 3. Using the multi-tester, Measure resistance between terminal "1" and "2" of evaporator temperature sensor. Specification Evaporator coretemperature [°C(°F)]Resistance[KΩ]Voltage[V]-20(-4)70.