MANUALS · FUEL [13] · страница 58 из 340 · Открыть оригинал PDF ↗

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AIR CONDITIONER SWITCH AND POWER RELAY

OPERATION

The air conditioner switch applies battery voltage
to the engine control unit when the air conditioner
is switched ON:

When the air conditioner signals are input, the
engine control unit activates the idle-speed control
servo, and also switches ON the power transistor
As a result, current flows to the power relay coil
and the relay switch is switched ON; the aircondi-
tioner compressor's magnetic clutch is activated

TROUBLESHOOTINGHINTS

If the air conditioner compressor's magnetic clutch is
not activatedwhentheairconditionerswitch
switched ON during idling. it is probable that the cause
is a malfunction of the air conditioner control system:

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