Air Conditioning System (For Automatic Air Conditioning System)

DTC B1422/22 Compressor Lock Sensor Circuit

DESCRIPTION

DTC Detection Condition:

The ECM sends a engine speed signal to the air conditioning amplifier via the CAN communication system.

The air conditioning amplifier reads the difference between compressor speed and engine speed. When the difference becomes too large, the air conditioning amplifier determines that the compressor locks, and turns the magnetic clutch off.

Wiring Diagram:

Step 1:

Step 1(Continued)-2:

Step 3:

Step 4:

INSPECTION PROCEDURE