P1718

DTC P0713, DTC P1718 [LA4A-EL]





TROUBLESHOOTING HINT
Fail-safe
P0713
- ECT substituted for TFT under normal operating condition.
P1718
- Transaxle diagnostics enabled using other vehicle dynamics.

TFT sensor description
- The TFT sensor is located on the solenoid valve body. It is a temperature-sensitive device called a thermistor. The resistance value of the TFT sensor will vary with temperature.
- The PCM monitors the voltage across the TFT sensor to determine the ATF temperature. The PCM uses this signal to determine shift schedule and to control line pressure for cold and hot temperature operation. The PCM also inhibits Torque Converter Clutch (TCC) operation at low ATF temperature and adjusts Electronic Pressure Control (EPC) pressure for temperature.





TFT temperature chart





TFT sensor specification

DIAGNOSTIC PROCEDURE





Step 1 - 3





Step 4 - 11