MPV 4WD V6-3.0L SOHC (1990)
Air Conditioning Switch: Testing and Inspection
The A/C switch signal can be checked at ECU terminal 1L. With blower motor and ignition switches "ON," terminal voltage should read 0V with A/C
switch "ON" and approximately 12V with A/C switch "OFF."
For further A/C system information, refer to HEATING, VENTILATION AND AIR CONDITIONING.