A/C Compressor Circuit

CIRCUIT DESCRIPTION
This sensor sends 1 pulse par 1 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 interval.

Wiring Diagram:

Step 1 - 4:

Step 4 (Continued):

INSPECTION PROCEDURE