Elantra L4-1595cc 1.6L DOHC 16 Valve (1995)
Engine Control Module: All Technical Service Bulletins
A/C Compressor - Operation
Group: CLIMATE CONTROL
Number: 95-97-002
Date: December, 1995
Model: ALL 1995-1996
Subject:
A/C COMPRESSOR OPERATION
DESCRIPTION:
A/C compressor operation is controlled by the ECM (Engine Control Module). A simplified A/C compressor circuit diagram is shown.
A/C COMPRESSOR OPERATION
As shown in the above circuit diagram, the ECM controls the A/C compressor by energizing or de-energizing the A/C compressor control relay coil.
Generally, when the ignition switch, blower switch, and A/C switch are all turned ON, the ECM energizes the A/C compressor control relay coil. At this
time, the A/C compressor is switched ON.
However, under certain conditions, the ECM disengages the A/C compressor
by de-energizing the A/C compressor control relay coil even though all the
switches are turned ON. This is done in order to ensure easier starting or to prevent engine overheating.