• The PCM determines the engine operation conditions based on signals from the various input parts and sends an on/off control signal to the A/C relay.
1
Neutral switch (MTX)
2
CPP switch (MTX)
3
PSP switch
4
ECT sensor
5
PCM temperature sensor
6
CKP sensor
7
TP sensor
8
TR switch (ATX)
9
Instrument cluster (A/C on request signal)
10
Refrigerant pressure switch (low pressure switch, high pressure switch)
