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EDC16 / U2103 08

Read the instructions below then start the fault diagnostic procedure.

  U2103 08


ECM was Missing on Bus



On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Fault criteria:

P-bus open or short-circuited for more than 0.1 s.

OK report:

Fault criteria NOT fulfilled.

Checking the wiring harness

Faults in the control module female connector can be the cause of the DTC. Check the connector with respect to oxidation, depressed pins and pin clamping force.
Jiggle the wiring harness at several points to detect intermittent breaks or short circuits. Check also the connector for oxidation or loose pins.

Diagnostic help

Diagnosis regards:


Functions in the diagnostic tool related to the fault:

Test value:
Bus Off Counter, P-Bus
Response Test
Read / Reset Bus Configuration

(See also description of readings/activations in diagnostic tool)