DTC P0218 L61
Circuit Description
The transmission fluid pump is constantly circulating fluid through
the torque converter. Hot fluid leaving the converter flows through the transmission
cooler lines to the oil cooler, located in the vehicle radiator. From the cooler,
the fluid returns to the transmission. Lube 1 fluid flows through the input
shaft to lubricate the transmission components in the front of the transmission. The
Lube 2 fluid circuit is fed by line pressure at the pressure regulator valve.
Lube 2 fluid flows through the oil feed pipes, and into the forward clutch
support, and provides lubrication to the rear components of the transmission. When
the PCM detects a high transmission fluid temperature for a long period of time,
then DTC P0218 sets.
Conditions for Setting the DTC
DTC P0218 will set if:
| • | The transmission fluid temperature is greater than 130°C (260°F)
for 10 minutes. |
| • | No TFT sensor DTCs have been set. |
DTC P0218 is a type C DTC.
Diagnostic Aids
| • | Ask the customer about vehicle overloading exceeding the trailer-towing
limit, or towing in overdrive. |
| • | The transaxle oil cooler is restricted. |
| • | The transaxle oil cooler lines are restricted. |
| • | The radiator/condenser air flow is restricted. |
| • | The transaxle fluid level is low. |
| • | The cooling fans are inoperative. |
DTC P0218 L81
Circuit Description
The transmission fluid pump is constantly circulating fluid through the torque
converter. Hot fluid leaving the converter flows through the transmission cooler lines
to the oil cooler, located in the vehicle radiator. From the cooler, the fluid returns
to the transmission. Lube 1 fluid flows through the driven sprocket support
to lubricate the transmission components in the front of the transmission. The Lube 2
fluid circuit is fed by line pressure at the pressure regulator valve. Lube 2
fluid flows through the oil feed pipes, and into the forward clutch support, and provides
lubrication to the rear components of the transmission. When the transaxle control
module (TCM) detects a high transmission fluid temperature for a long period of
time, DTC P0218 is set.
Conditions for Setting the DTC
DTC P0218 will set if:
| • | The TFT is greater than 130°C (260°F) for 10 minutes. |
| • | No TFT sensor DTCs have been set. |
DTC P0218 is a type C DTC.
Diagnostic Aids
| • | Ask the customer about vehicle overloading exceeding the trailer-towing
limit, or towing in overdrive. |
| • | The transaxle oil cooler is restricted. |
| • | The transaxle oil cooler lines are restricted. |
| • | The radiator/condenser air flow is restricted. |
| • | The transaxle fluid level is low. |
| • | The cooling fans are inoperative. |
