Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TCM-P072000

Condition
The transmission's output speed sensor sends the transmission control module (TCM) a signal on the speed of the output drive shaft. Using this signal, the control module calculates the outgoing speed of the transmission. The signal is compared to the input speed signal from the transmission speed sensor and is used to calculation the transmission's gear ratio and for diagnostics.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Circuit for transmission speed sensor is open.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Normal driving above 30 km/h (about 20 mph).

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
- Adaptation function is blocked.
- Neutral check function is blocked.
- The transmission control module (TCM) uses the speed signal that the brake control module (BCM) puts on the CAN network.
- If the brake control module (ECM) also sends a signal that the speed signal is incorrect, the auxiliary program Emergency mode 3 will become active.

Hint: Emergency mode in case of malfunction, B6304T4, TF-80SC AWD, B5254T5, TF-80SC Emergency Mode In Case of Malfunction

Possible source
- Open circuit in power supply or signal lead.
- Power supply or signal cable is short circuited to supply voltage.
- Transmission output speed sensor not working.
- Internal fault in the transmission control module (TCM).

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