1989-Montero · heaters AC · страница 4 из 16 · Открыть оригинал PDF ↗
HEATER CIRCUIT
CIRCUIT DIAGRAM <3.OL Engine>
TROUBLESHOOTING HINTS
OPERATION
l When the ignition switch is at “ON”, current Blower motor turns only at high speed.
flows through fuse No. 3, heater relay (coil). 8 Check resistor.
and ground, causing the heater relay contacts
to close.
l Then when the blower switch is set at any of
#y-m, “M, .,, I, MY, or “H”, current flows through
fuse No. 6, heater relay (contacts), blower
switch, resistor, blower motor, and ground,
causing the blower motor to rotate.
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c -
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