P1783

DTC P1783[LA4A-EL]





TROUBLESHOOTING HINT
Malfunction mode effects management
- Electronic Pressure Control (EPC) minimum static pressure increased.

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 of the ATF temperature. The PCM uses this signal to determine shift schedule and to control line pressure for cold and hot temperate operation. The PCM also inhibits Torque Converter Clutch (TCC) operation at low ATF temperature and adjusts Electronic Pressure Control (EPC) pressure for temperate.





TFT temperature chart





TFT sensor specification

DIAGNOSTIC PROCEDURE





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