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EDC16 / P1813 71

Read the instructions below then start the fault diagnostic procedure.

Symptom: Performance loss.

  P1813 71


TCM Missing on BUS

Fault symptom

Performance loss.

On-board diagnosis

Enable criteria:

Ignition ON.

Fault criteria:

No or faulty signal from TCM via bus

System reaction to a fault:

Limp Home, engine torque limitation.

Diagnostic help

Functions in the diagnostic tool related to the fault:

Test value:
Bus Off Counter, P-Bus
(See also description of readings/activations in diagnostic tool)