Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TCM-P280500

Condition
The gear position sensor is integrated in the transmission control module (TCM) and provides information about the selected gear position. Two Hall sensors in the transmission control module (TCM) detect whether the selector lever is in position. For diagnostics, there is a parallel hall sensor (2) that gives a reversed signal characteristic, so that the sum of the signal voltages from hall sensor (1) and (2) are constant. The signal voltage (0 and 5 V) corresponds to the current gear selector position.
The diagnostic trouble code (DTC) is stored if the control module detects:
- Incorrect signal from Hall sensor 1.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition on.





Substitute value
- Adaption is blocked.
- The transmission control module (TCM) uses the last selected gear position.

Possible source
- Incorrectly adjusted gear-shift position sensor.
- Internal fault in the transmission control module (TCM).

Fault symptom[s]
- Malfunction indicator light (MIL), on
- General warning lamp lit
- Engine fails to start