13 APPENDIX C: DIAGNOSTIC TROUBLE CODE INDEX 645
DTC P ID SID FMI Circuit Condition Description
314**
100 0
7
EWPS (page 440) Engine O il Pre ssu re below critical level
315*
190 0 0
EWPS (page 440)
Engine speed above warning level
316 110 0 1
EWPS (page 440) Engine Coolant Temperature unable to reach
commanded set point
321**
110 0 0
EWPS (page 440) Engine Coolant Tempe r at ure above warning
level
322**
110 0
7
EWPS (page 440) Engine Coolant Temperature above critical level
323**
111 0 1
EWPS (page 440) E ngine Coolant Level below warning/critical
level
324**
71 0 14
IST (page 497) Idle Shutdown Timer enabled engine shutdown
325 110 0 14
EWPS (page 440)
Power redu ced, matched to cooling system
performance
331*
164 0 0
ICP SYS (page 472) Injection Control Pressure above system
working range
332*
164 0 13
ICP (page 457) Injection Control Pressure above spec. with
engine not running
333*
164 0 10
ICP SYS (page 472) Injection Control Pressure above/bel
ow desired
level
334 164 0
7
ICP SYS (page 472) ICP unable to achieve setpoint in time (poor
performance)
335 164 0 1
ICP SYS (page 472) ICP unable to build pressure during cranking
341*
034 4
EBP (page 359) Exhaust Back Pressure signal ou
t-of-range low
342*
034 3
EBP (page 359) Exhaust Back P ressure signal out-of-range high
343*
034 0
AMS (page 294) Excessive e xh aust back pressure (gauge)
344*
034 13
EBP (page 359)
Exhaust back pressure above spec. when
engine off
345 0 27 2
AMS (page 294) Faults detected during VGT portion of the AMS
Tes t
346 27 0 2
AMS (pa ge 294) Faults detected durin g EG
R portion of the AMS
Tes t
351 0 34
7
AMS (page 294) Change in exhaust back pressure did not occur
when expected
353 0 27
5
AMS (page 294) Variable Geometry Turbo control over duty
cycle
354 0 27 6
AMS (page 294) Variable Geometry T
urbo control under duty
cycle
† See chassis circ
uit diagrams and Engine Diagnostics Manual for more information.
* Indicates ambe
rENGINElamponwhenaDiagnostic Trouble Code (DTC) is set.
** Indicates re
d ENG INE lamp on if th e Engine Warning Protection System (EWPS) is enabled and a
DTC is set.
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.