Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TCM-P071100

Condition
The oil temperature sensor provides the Transmission control module (TCM) with a signal that is used, among other things, for the temperature controlled lock-up and engagement high temperature program functions.
The sensor has an NTC (negative temperature coefficient) resistor.
The signal (voltage) drops with increased oil temperature.
The diagnostic trouble code (DTC) is stored if control module:
- After the engine has run for approximately 10 minutes, an unchanged signal is received from the oil temperature sensor.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- After at least two minutes normal driving in gear position D, 4, 3, 2 or Geartronic (MAN) and engine temperature at start-up more than 70 °C or transmission oil temperature more than 50 °C.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

Oil Temperature Sensor:

Substitute value
- Transmission control module (TCM) assumes an oil temperature of 80 °C.
- The lock-up function is blocked.
- Slip lock-up function is blocked.
- Neutral check function is blocked.

Possible source
- Contact resistance in the terminals.
- Oil temperature sensor not working.

Fault symptom[s]
- Text window and warning symbol/Yellow symbol and text message
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication