B1422

CIRCUIT DESCRIPTION

Detection Item:

This sensor sends 4 pulses per engine revolution to the ECM.
If the number ratio of the compressor speed divided by the engine speed is smaller than a predetermined value, the ECM turns the compressor OFF. And, the indicator flashes at about 1 second intervals.

Wiring Diagram:

Steps 1 - 3:

Step 4:

INSPECTION PROCEDURE