Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TCM-P071300

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) increases with decreasing oil temperature.
The diagnostic trouble code (DTC) is stored if control module:
- Receive a too high signal from the oil temperature sensor for approx. 10 seconds.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- At least two minutes normal driving with an engine temperature that exceeds 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.
- Short-circuit to supply voltage in the signal cable.
- Oil temperature sensor not working.

Fault symptom[s]
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication
- Text window and warning symbol/Yellow symbol and text message
- Automatic transmission/Shifts rough or jerky/Unsure when/at all times