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TCM ME9 / U0002 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display.

  U0001 00


TCM was Missing on Bus

Fault symptom

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Engine running and not in limp home mode.
Voltage is over 9V but under 16V

Fault criteria:

No bus communication.

System reaction to a fault:

Limp home

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

In order to read DTC from Trionic TCM, communication with CIM is required. If the DTC is stored and read with the diagnostic instrument, it indicates intermittent bus-lead fault.