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U0101

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE lamp on. CHECK GEARBOX lamp on

U0101


TCM Missing on Bus

Fault symptoms


CHECK ENGINE lamp on.

CHECK GEARBOX lamp on


Conditions

The following conditions apply for this DTC:


TCM absent on the bus for more than 15 seconds.


Diagnostic help

In order to read DTCs from the control module, communication with the MIU is required. If the TCM can be contacted with the diagnostic instrument, it indicates intermittent bus lead fault.