Transaxle Cooling: Notes

The transmission fluid cooling system consists of the following:

• OTA  transmission fluid combo cooler
• Auxiliary transmission fluid cooler OTA  (model dependent)
• Transmission fluid cooler tube assembly
• Thermal bypass valve
• Transmission fluid cooler outlet tube
• Transmission fluid cooler return tube

This vehicle is equipped with an external OTA  transmission fluid cooler. The OTA  transmission fluid cooler is part of the A/C condenser and cannot be serviced separately. The OTA  transmission fluid cooler is mounted in front of the engine radiator. There is also an auxiliary transmission fluid cooler OTA  which is model dependent. If equipped, the auxiliary transmission fluid cooler OTA  is mounted in front of the A/C condenser. The cooling system also consists of a thermal bypass valve which is mounted on the transaxle main control cover. When the transmission fluid is below normal operating temperature, transmission fluid travels from the transaxle to the thermal bypass valve and back to the transaxle. When the transmission fluid is at or above normal operating temperature, the thermal bypass valve opens allowing transmission fluid to travel from the transaxle through the OTA  transmission fluid cooler and back to the transaxle. The OTA  transmission fluid cooler transfers heat from the transmission fluid to the outside air.