Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TCM-DD10

Condition




The transmission control module (TCM) and gear selector module (GSM) communicate with each other in a network via standardized serial communication - local interconnect network (LIN). The control modules transmit and receive information.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- No signal from the Gear selector module (GSM).
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition on.

Substitute value
- Manual gear shift position (MAN) function is blocked.
- Winter program (W) function is blocked.

Possible source
- Contact resistance and oxidation in the terminals.
- Open-circuit in the communication cable (LIN) between the control module and the Gear selector module (GSM).
- Open circuit on the cable for the power supply or the ground lead to the gear selector module (GSM).
- Internal fault in gear selector module (GSM). Internal fault in the gear selector module (GSM).

Fault symptom[s]
- General warning lamp lit
- Gear selector indicator does not function