toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Compressor Speed Sensor, HVAC|Testing and Inspection|Page 7107 > < Control Module HVAC|Testing and Inspection|Page 7102
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Compressor Speed Sensor: Testing and Inspection

A/C Compressor Lock Sensor Circuit

CIRCUIT DESCRIPTION

This sensor sends 1 pulse per engine revolution to the ECM. It 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 

Step 1

Compressor Speed Sensor, HVAC|Testing and Inspection|Page 7107 > < Control Module HVAC|Testing and Inspection|Page 7102