B1422

CIRCUIT DESCRIPTION
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.




DETECTING CONDITION




WIRING DIAGRAM

Step 1:

Step 2:

Step 3:

Step 4:

INSPECTION PROCEDURE