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
E398-2 Low Fuel Rail Pres-
2. Perform Fuel System Inspection
Low Pressure Fuel Lines Leaking -
sure - Continued
(WP 0035).
Tighten lines (WP 0173).
Fuel Rail Lines Leaking - Replace
fuel rail lines (WP 0072).
Low Pressure Fuel Lines
Restricted/Damaged - Replace low
pressure fuel line (WP 0173).
Primary Fuel Filter and Water Sepa-
rator Damaged or Contaminated -
Replace primary fuel filter and water
separator (WP 0174).
Secondary Fuel Filter and Water
Separator Damaged or Contami-
nated - Replace secondary fuel filter
(WP 0073).
E539-1 High Intake Manifold
System Response:
Air Temperature
Engine ECM logs event, and a
warning will display on instru-
ment panel.
Engine ECM willderate at one
percent per second. Derate of
the engine will only occur if the
Enable Derate parameter has
been enabled.
Possible Performance Effect:
Engine will derate.
1. Using the Messenger (WP 0005),
Event Code E539-1 Present - Go to
verify presence of event code
step 2.
E539-1.
2. 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).
E1044-1 High Intake Mani-
1. Check for active diagnostic and
Codes Found - Troubleshoot any
fold Air Pressure
event codes on the MSD, start
active codes before continuing with
MSD and select engine control
this procedure (WP 0010).
ECM (WP 0006).
No codes - Proceed to step 2.
2. Using the Messenger (WP 0005),
Event Code E1044-1 Present - Go to
verify presence of event code
step 3.
E1044-1.
0011-206