TM 5-3805-296-23-1
0052
Table 1. E539 High Intake Manifold Air Temperature Event Code.
0052
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
E539 High Intake Manifold
Air Temperature - Warning
Perform this test only if condition is active.
or Derate
EVENT CODE SET CONDITION
Warning - Engine ECM Detects Inlet Air Temperature At or Above 75C
(167F).
Derate - Engine ECM Detects Inlet Air Temperature At or Above 79C
(174F).
POSSIBLE CAUSE
High intake manifold air temperature, high altitude operation, and high
engine loads.
Air Inlet System Restricted/Damaged/Dirty.
Exhaust Restricted/Damaged.
Test Step 1. Verify Operating
Conditions When Code Occurred.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
Yes Discontinue machine operation in
2. Verify if machine was operating in
high ambient temperature.
high ambient temperature when
Proceed to Test Step 6.
code occurred.
No Proceed to step 3.
3. Verify if engine was operating
Yes No action required.
under heavy load or at high
No Proceed to Test Step 2.
altitude when code occurred.
Test Step 2. Check for Other Active
Event Codes.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
2. At MSD, check for other active
Other Event Code(s) Active
event code(s) (WP 0008).
Diagnose and repair other active event
code(s) (WP 0005).
Proceed to Test Step 6.
No Other Event Code(s) Active
Proceed to Test Step 3.
