NOTE:
Continuously holding down the Stop Engine Override Switch will not prevent the engine shutdown
sequence. You must continue to reset the automatic shutdown system by pressing the Stop Engine Override
Switch at intervals of approximately 15 to 20 seconds.
It takes 30 seconds from the time the automatic shutdown sequence begins until engine shutdown. Therefore, the operator
must
press the override switch just prior to engine shutdown and continue to do so until the vehicle can be brought to a stop
in a safe location.
5.1.2
Immediate Speed Reduction
The immediate speed reduction option will bring engine rpm back to a predetermined speed, but will not shut down the
engine.
The engine should not be restarted after it has been shut down by the engine protection system, unless the problem has been
located and corrected.
5.1.3
Red Stop Lamp
The conditions that will cause the RSL (Stop Engine) to come on are:
• High coolant temperature
• Loss of coolant
• High oil temperature
• Low oil pressure
• Auxiliary shutdown
Whenever the AWL (Check Engine) or the RSL comes on, the DDEC system will determine where the problem is and will
then store this information in its memory.
If the malfunction is intermittent, the lights will come on and go off as the computer senses the changing engine condition.
5 Detroit Diesel Electronic Control System Operation
18
All information subject to change without notice.
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