MID 047 - CID 0579 - FMI 06 Heartbeat signal short to ground
Conditions Which Generate This Code:
The Secondary Electronic Control Module (ECM) detects a short circuit to the primary ECM heartbeat signal.
System Response:
The CID-FMI is logged in memory. The CID-FMI may be viewed on a display module or the Caterpillar Electronic Technician (ET). If the primary ECM heartbeat signal is lost, the secondary ECM will control the governing.
Test Step 1. Perform the following test: Secondary ECM/Personality Module
Results:
- OK - Stop.
- REPAIRED, OK - Stop.
Caterpillar Information System:
3512B Marine Auxiliary Engine MID 047 - CID 0579 - FMI 05 Heartbeat signal open circuit
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