TM 5-3805-293-23-1
0011
Table 2. Engine Troubleshooting with Codes for the 120M Motor Grader - Continued.
CDI FMI CODE
ERROR/EVENT
CORRECTIVE ACTION
E1044-1 High Intake Mani-
3. Inspect engine air filter for
Filter Dirty/Damaged - Service/
fold Air Pressure - Contin-
cleanliness and damage.
replace air filter (WP 0115).
ued
Filter OK - Proceed to step 3.
4. Inspect air intake system for dam- Air Inlet System is Blocked or
age, blockage, and cleanliness
Dirty - Clean and remove blockage
(WP 0037).
from air inlet system components (WP
0037).
Air Inlet System Components are
Damaged - Replace damaged com-
ponents (WP 0115, WP 0078, and WP
0103).
5. Inspect exhaust system for
Exhaust System Components are
Damaged - Replace damaged
damage and blockage (WP
components (WP 0077, WP 0076,
0037).
WP 0063, and WP 0079).
System Response:
Engine ECM logs event, and a
warning will display on instru-
ment panel.
Engine ECM will derate engine
power by 20 percent.
Engine ECM detects intake
manifold pressure above trip
point that is defined in engine
ECM software.
Possible Performance Effect:
None
1. Check for active diagnostic and
Codes Found - Troubleshoot any
event codes on the MSD (WP
active codes before continuing with
this procedure (WP 0010).
No Codes - Proceed to step 2.
2. Using the Messenger (WP 0005),
Event Code E1044-2 Present - To to
verify presence of event code
step 3.
E1044-2.
3. Inspect air inlet system for dam-
Air Inlet System is Blocked or Dirty
age, blockage, and cleanliness
- Clean and remove blockage from air
(WP 0037).
inlet system components (WP 0037).
Air Inlet System Components are
Damaged - Replace damaged com-
ponents (WP 0115 and WP 0078).
Change 1
