User Manual

DDEC IV SYSTEM
Active Codes – The active codes will
be flashed on the SEL in the order of
most recent to least recent occurrence
based on eng ine hours. If there are no
activecodes,acode25willbeflashed.
Inactive Codes – The i nactive codes
will be flashedontheCELinthe
order of most recent to least recent
occurrence based on engine hours. If
there are no inactive codes, a code 25
will be flashed.
Only One Light Flashes at a Time –
Only one light will be flashing codes
at any time. When code flashing is
initiated, the active codes (or co d e
25) will be flashed on the SEL. Then
the inactive codes (or code 25) will
be flashed on the CEL. When all the
inactive codes (or code 25) have been
flashed, the process of flashing all
the active codes followed by all the
inactive codes will repeat until the
conditions for code flashing are no
longer satisfied.
To Read Codes: Use the diagnostic
data reader (DDR) or depress and hold
the diagnostic request switch with
the ignition ON and the engine AT
IDLE or NOT RUNNING. Press and
hold the switch. Active codes will be
flashedontheSELfirst, followed by
inactive codes flashed on the CEL.
The codes will continue to flash and
repeat as long as the diagnostic request
switchisheldintheONpositionwith
the ignition on.
Diagnostic Code List
Diagnostic codes ar e listed in the next
several pages.
PERSONAL INJURY
To avoid injury from engine
shutdown in an unsafe situation,
ensure the operator knows how
to override the stop engine
condition on a DDEC-equipped
unit.
PERSONAL INJURY
To avoid injury from loss of
vehicle/vessel contro l, the
operator of a DDEC equipped
engine must not use or read
any diagnostic tool while the
vehicle/vessel is moving.
30 All information subject to change without notice. (Rev. 01/04)
DDC-SVC-MAN-0058 Copyright © 2004 DETROIT DIESEL CORPORATION