Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TCM-P072500

Condition
The engine control module (ECM) transmits a signal on engine speed on the CAN network. The transmission control module (TCM) uses the signal to check the lock-up function.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- There is no speed (rpm) signal from the engine control module (ECM) or the signal is faulty.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition on and when CAN network is OK.

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
- Auxiliary program Emergency mode 3 in the transmission control module (TCM) has started.

Hint: Emergency mode in case of malfunction, B6304T4, TF-80SC AWD, B6324S5, TF-80SC AWD, B6324S5, TF-80SC, B6324S4, TF-80SC AWD, B6324S4, TF-80SC Emergency Mode In Case Of Malfunction

Possible source
- Fault-trace the central electronic module (CEM).
- Locate the cause of the fault in the engine control module (ECM).
- Intermittent open circuit or short-circuit on the CAN lead between the engine control module (ECM) and the transmission control module (TCM).

Fault symptom[s]
- Automatic transmission/No automatic gearshift
- Automatic transmission/No manual gear shift
- Driving/Poor performance/lacks power
- Automatic transmission/Lockup does not work
- Automatic transmission/Shifts rough or jerky/Unsure when/at all times
- Text window and warning symbol/Yellow symbol and text message
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication