P1971

Information From T7 Incorrect
Fault symptoms

CHECK GEARBOX warning lamp on.

TCM may be in emergency operation program.

Conditions
Incorrect information from Trionic.





Bus

Diagnostic help
Incorrect information on P-bus concerning engine torque is making TCM generate diagnostic trouble code P1971.

Incorrect information on the P-bus concerning accelerator pedal position is making TCM generate diagnostic trouble code P1971.

See Description and Operation for technical descriptions of Bus Communication Trionic.