P1DA9 FIAT – Transmission Fluid Temperature Rationaity

P1DA9 FIAT Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1DA9 FIAT Possible Causes

Restriction in the transmission cooling system,Incorrect fluid level,Damage torque converter,Faulty Transmission Control Module (TCM)

P1DA9 FIAT Description

The transmission monitoring system uses three temperature sensors. If anyone of the sensors fails, the other two sensors are used for the control and temperature monitoring calculations and the Malfunction Indicator Lamp (MIL) will not be illuminated. The MIL will only illuminate when more than one temperature sensor has a failure.