B1422

CIRCUIT DESCRIPTION

Detection Item:

This sensor sends 1 pulse 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 - 2:

Step 3:

INSPECTION PROCEDURE