Mazda 2002 Millenia Spezifikationen PDF herunterladen (Seite 98)

100

101

CONTROL SYSTEM

F37

Operation Conditions

• While A/C is operating, the PCM cuts off the power supply to the A/C relay as shown below.

End Of Sie

ELECTRIC FAN CONTROL

A6E394018881T14

Operation

L8, LF (Intensely hot area) and L3 engine models

ON: Energized

OFF: De-energized

A/C cut-off condition A/C cut-off time Purpose

During cranking For approx. 4.0 s Startability improvement

Throttle valve is open more than 50% For approx. 5.0 s

Acceleration performance

improvement

ECT is above 113 °C {235 °F}

Alternates between on and off for 10 seconds

until ECT falls to 107 °C {225 °F}

Engine reliability improvement

ECT is above 118 °C {244 °F} Until engine ECT falls below 113 °C {235 °F}

Condition

PCM terminal 4L PCM terminal 4B PCM terminal 4F Operation condition

Cooling fan

motor No. 1

Cooling fan

motor No. 2

Stopped Stopped OFF OFF OFF

A/C: OFF

ECT: below 100 °C [176 °F]

Low speed Low speed ON ON OFF

A/C: OFF

ECT: 100108 °C [212226

°F]

High speed High speed ON ON ON

A/C: OFF

ECT: above 108 °C [226 °F]

Low speed Low speed ON ON OFF

A/C: ON (middle switch OFF)

ECT: below 108 °C [226 °F]

High speed Middle speed ON OFF ON

A/C: ON (middle switch ON)

ECT: below 108 °C [226 °F]

High speed High speed ON ON ON

A/C: ON

ECT: above 108 °C [226 °F]

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