Purpose/Function
The oil cooler constantly maintains maximum ATF performance in the transaxle by maintaining an optimum ATF temperature which has the effect of achieving reduced fuel consumption.
Construction/Operation
The oil cooler performs the following operations according to the ATF temperature condition:
Heating function: Warms the ATF using the radiator coolant to promote an earlier increase in the ATF temperature when its temperature is low. As a result of the earlier temperature increase, the ATF viscosity decreases which reduces drag in the transaxle.
Cooling function: Cools the ATF using the radiator coolant to maintain optimum conditions and prevent ATF expansion and deterioration.

Oil Cooler Removal/Installation
Oil CoolerQuick Release Connector (Emission System)
Purpose, Function
Serviceability has been improved by the easy disconnection/connection.
Construction
The following types of quick release connectors are used.
U.S.A. and CANADA
Except U.S.A and CANADA
Type A
An SST is not used with this type.
...
Hydraulic Pressure Control System Outline [Fw6 A EL, Fw6 Ax EL]
Outline
The hydraulic control mechanism consists of an oil cooler which maintains
the hydraulic pressure at the optimum temperature, a control valve body and
each shift valve which perform adjustment and circuit switching of the hydraulic
pressure based on the control content calcula ...
Fuel Pump Unit
Purpose, Function
Supplies fuel in the fuel tank to the high pressure fuel pump.
Based on the control signal from the PCM, the fuel pump operates by the operation
of the fuel pump relay and the fuel pump control module.
Construction
2WD
The fuel pump unit is installed ...