DTC 22

Circuit Description
This sensor sends 4 pulses per engine revolution to the air conditioning control assembly. If the number ratio of the compressor speed, divided by the engine speed is smaller that a predetermined value, the air conditioning control assembly turns the compressor off, and the indicator flashes at about 1 second intervals.

Wiring Diagram:

Inspection Procedure

Step 1:

Step 2:

Step 3: