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. Lube 2 fluid provides lubrications 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. DTC P0218 is a type
C DTC.
Conditions for Setting the DTC
DTC P0218 will set if:
| • | The transmission fluid temperature is greater than 130°C (260°F)
for ten minutes. |
| • | No TFT sensor DTCs have been set. |
Diagnostic Aids
| • | Ask the customer about vehicle overloading exceeding trailer-towing limit,
or towing in Overdrive. |
| • | Transaxle oil cooler restricted. |
| • | Transaxle oil cooler lines restricted. |
| • | Radiator/condenser air flow restricted. |
| • | Low transaxle fluid level. |
| • | Inoperative cooling fans. |
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. Lube 2 fluid 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:
| • | 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 trailer-towing limit,
or towing in Overdrive. |
| • | Transaxle oil cooler restricted |
| • | Transaxle oil cooler lines restricted |
| • | Radiator/condenser air flow restricted |
| • | Low transaxle fluid level |
| • | Inoperative cooling fans |
