Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-B108700

Condition




Engine control module (ECM) communicates continuously with Alternator control module (ACM) and radiator temperature sensor. Communication takes place via the LIN-net. The control module checks that its own signals go out on the LIN-net.
The diagnostic trouble code is stored if the control module detects:
- Communication is missing.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition on.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

Substitute value
- None.

Possible source
- Contact resistance or oxidation on connections
- LIN-cable short-circuited to voltage.
- LIN-cable short-circuited to ground.
- Open circuit on LIN-cable.
- Internal fault in another unit in the same part of the LIN network.
- Damaged engine control module (ECM).

Fault symptom[s]
- Malfunction indicator light (MIL), on