E004 Engine Overspeed Shutdown
Conditions Which Generate This Code:
The engine rpm has exceeded the trip point that is programmed into the Electronic Control Module (ECM). The ECM has determined that the detected speed is accurate.
System Response:
The ECM commands the gas shutoff valve to close and the ECM terminates the ignition. The shutdown output is activated. The code is logged.
The engine is shut down.
Test Step 1.
Refer to Troubleshooting, "Engine Overspeed".
Results:
- OK - STOP
Caterpillar Information System:
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G3520B Engines MID 111 - CID 1549 - FMI 05 Cyl #19 Exhaust Port Temp Sensor open circuit
G3520B Engines MID 111 - CID 1548 - FMI 05 Cyl #18 Exhaust Port Temp Sensor open circuit
G3520B Engines MID 111 - CID 1547 - FMI 05 Cyl #17 Exhaust Port Temp Sensor open circuit
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G3520B Engines MID 111 - CID 1549 - FMI 04 Cyl #19 Exhaust Port Temp Sensor short to ground
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G3520B Engines MID 111 - CID 1547 - FMI 04 Cyl #17 Exhaust Port Temp Sensor short to ground
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