940 L4-2.3L SOHC VIN 88 B230F (1992)
A/C Signal: Description and Operation
Bendix
A/C Pressure Sensor
Used by the fuel injection ECU:
OPERATION
When the AC compressor is in operation, an electrical signal is sent from the pressure sensor (located on the receiver/dryer at passenger side
fire-wall) to the ECU.
When the A/C system pressure is low, the pressure sensor will come on (A/C compressor turns on) and send a signal to the ECU. If the pressure is
sufficient for the A/C system to operate without the compressor, the pressure sensor will stay off and no signal is sent to the ECU.
A/C Switch
SIGNAL
Used by the fuel injection ECU:
OPERATION
The A/C switch sends a signal to the ECU when A/C is requested (A/C switch is turned on).
LOCATION
The A/C switch is located in the center console.
