CID 1603 FMI 12 Machine Control Module malfunction
Conditions Which Generate This Code:
The Electronic Control Module (ECM) cannot detect communication with the machine control module.
System Response:
The ECM will log the diagnostic code. All features that rely on the data link are disabled.
- There are no performance effects.
Test Step 1. Perform the following diagnostic procedure: Cat Data Link Circuit - Test
Results:
- OK - STOP
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