Flashing Fault Codes With Awl / Sel; Figure 5-5 Flashing Fault Codes - Detroit Diesel DDEC VI 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
flash codes. Active codes are flashed on the RSL and inactive codes are flashed on the AWL.
All codes (inactive and active) are flashed in numerical order. Active faults are flashed first,
followed by inactive.
Flashing codes provide a four digit number (see Figure 5-5). Each fault code is flashed twice in
order to help with counting the flashes.
If there are no active faults or if there are no inactive faults the number "3" is flashed once
followed by an ~3s delay.
Figure 5-5 Flashing Fault Codes
The SEO/Diagnostic Request is used to flash 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 satisfied.
All information subject to change without notice. (Rev. 01/07)
7SA827 0701 Copyright © 2007 DETROIT DIESEL CORPORATION
DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
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