P1971

P1971

Unreliable Data from Trionic. See Fault Tracing for Fault Code in Trionic.







Fault symptoms
CHECK GEARBOX warning lamp on.
TCM may be in emergency operation program.

Conditions
Incorrect information from Trionic.







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 technical description Bus communication Trionic, Description and Operation of Information Bus.