Mazda 626 - Cut-Off Control Description Without A;C

CONTROL SYSTEM
1
ECT sensor
2 TP sensor
3 DLC (TEN terminal)
4
PCM
5
Fan relay No.2
6
Cooling fan motor
Operation condition
• While A/C is operating, the PCM cuts the power supply off the A/C relay as shown below.
A/C cut-off condition A/C cut-off time Purpose
During cranking For approx. 4.0 seconds
Startability improvement
Vehicle start-off (for ATX)
For approx. 2.0 seconds
Acceleration perfomance improvement
Throttle valve is opened above 87.5 %
For approx. 5.0 seconds
Engine reliability improvement
Engine coolant temperature is above
113°C {235° F}
Alternates between 10 seconds on
and off untill engine coolant
temperature falls to 107°C {225°F}
Engine coolant temperature is above
117°C {243’ F}
Until engine coolant temperature falls
below 110°C {230° F>
F1-14