DTC B1451/51 Compressor Solenoid Circuit: Description

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

In this circuit, the compressor receives a refrigerant compression demand signal from the air conditioning amplifier. Based on this signal, the compressor changes the degree of refrigerant compression.

DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE

DTC No.	DTC Detection Condition	Trouble Area
B1451/51	Open or short in solenoid of externally changeable compressor circuit	A/C compressor* Wire harness and connector between air conditioning amplifier and A/C compressor* Air conditioning amplifier
HINT: *: Compressor and pulley for 2AZ-FE, compressor and magnetic clutch for 2GR-FE