Compressor Clutch Relay: Testing and Inspection

A/C RELAY CONTROL






AT oscillation
When oscillation is made during vehicle is stopped but the A/C is in operation, the A/C relay is to be turned off for 1.5 sec.







AT accelerating
The A/C relay is turned OFF for 5 second when the TPS output voltage is over 3.9 - 4.1 V.

Circuit Diagram:

AT high coolant temperature
The A/C relay is turned off at the coolant temperature over 110°C - 115°C (230 - 239°F) after engine start.