COOLING SYSTEM
01–12–5
01–12
WATER PUMP CONSTRUCTION/OPERATION
CHU011201008S07
Construction
• The water pump is composed of a steel water pump pulley, a water pump body made of aluminum alloy, and
the gasket. The spiral casing is built into the front cover for weight reduction.
Operation
• The water pump is driven by the drive pulley.
End Of Sie
COOLING FAN, COOLING FAN MOTOR, RADIATOR COWLING CONSTRUCTION/OPERATION
CHU011201008S08
Construction
• Plastic cooling fans and radiator cowling have
been adopted for weight reduction.
• Both cooling fans and cooling fan motors are
attached to the radiator cowling.
• An electric motor type cooling fans operated by a
fan control signal from the PCM has been
adopted.
Operation
• Cooling fans No.1 and No.2 operate simultaneously according to the engine coolant temperature and whether
the A/C is on or off. Two- stage control has been adopted to the cooling fan with high and low speed rotation
allowing noise reduction and power savings. (See 01–40–37 ELECTRICAL FAN CONTROL OPERATION.)
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SPIRAL
CASING
WATER PUMP BODY
GASKET
WATER PUMP PULLEY
SECTIONAL VIEW
CHU0112S004
RADIATOR COWLING
COOLING FAN NO.2
COOLING FAN NO.1
COOLING FAN
MOTOR NO.1
COOLING FAN
MOTOR NO.2
BHJ0112N006
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