Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TCM-U040100

Condition
The control modules transmit and receive information via a standardized serial communication method - CAN (Control Area Network). If a control module registers a fault, the control module can then transmit a signal informing that its information cannot be trusted.
The diagnostic trouble code (DTC) is stored if the control module detects:
- The signal that informs that the information from the Engine control module (ECM) is incorrect.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.

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.





Substitute value
- None.

Possible source
- Locate the cause of the fault in the engine control module (ECM).

Fault symptom[s]
- None.