1. Check that the oil flow control solenoid valve has no deformation, cracks or other damages. 2. Measure the resistance between the oil control solenoid terminals.
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Dtc b1431 in-vehicle (post evaporator) temperature sensor circuit short-circuit
DTC DETECTING CONDITION:In-vehicle sensor circuit is shorted.TROUBLE SYMPTOM:In-vehicle air temperature is falsely recognized as 25°C (77°F), and the compartment temperature is adjusted.WIRING DIAGRAM:Air conditioning system Air Conditioning System > WIRING DIAGRAMSTEPCHECKYESNO1.CHEC ...