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A/C Compressor Lock Sensor Circuit

A/C Compressor Lock Sensor Circuit

CIRCUIT DESCRIPTION

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 interval.

Wiring Diagram:






Step 1:




Steps 2 - 3:




INSPECTION PROCEDURE