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DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
Flashing Fault Codes with AWL / SEL
The Stop Engine Override (SEO)/Diagnostic Request Switch is used to activate the AWL/RSL to
fl
ash codes. Active codes are
fl
ashed on the RSL and inactive codes are
fl
ashed on the AWL.
All codes (inactive and active) are
fl
ashed in numerical order. Active faults are
fl
ashed
fi
rst,
followed by inactive.
Flashing codes provide a four digit number (see Figure 5-5). Each fault code is
fl
ashed twice in
order to help with counting the
fl
ashes.
If there are no active faults or if there are no inactive faults the number “3” is
fl
ashed once
followed by an ~3s delay.
Figure 5-5
Flashing Fault Codes
The SEO/Diagnostic Request is used to
fl
ash codes in the following circumstances:
□
Engine Speed is < 100 RPM and the SEO switch is transitioned from the OFF to the ON
position
□
Idle governor is ACTIVE and the SEO switch is transitioned from the OFF to the ON
position
□
Vehicle Speed is < 3 mph and the Park Brake is activated and the SEO switch is transitioned
from the OFF to the ON position
□
The engine is not running and ignition is ON
□
The engine is idling and not in an "engine protection" condition
The feature is deactivated once the SEO switch is returned to the OFF position or the above
conditions are no longer satis
fi
ed.
All information subject to change without notice.
(Rev. 01/07)
5-17
7SA827 0701
Copyright © 2007 DETROIT DIESEL CORPORATION