TM 5-3805-296-23-1
0043
Table 1. E172 High Air Filter Restriction Event Code.
0043
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
E172 High Air Filter
Restriction - Warning or
Perform this test only if condition is active.
Derate.
EVENT CODE SET CONDITION
Engine ECM Detects Abnormal Difference in Atmospheric Pressure and Turbo
Inlet Pressure.
POSSIBLE CAUSE
Air Inlet System Restricted/Damaged/Dirty.
Test Step 1. Inspect Air Inlet System.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Inspect air inlet system for dam-
Air Inlet System Restricted Clear
age, restriction, and cleanliness
restriction(s) (WP 0167).
(WP 0167).
Proceed to Test Step 2.
Air Inlet System Damaged Replace
damaged air inlet system components
(WP 0167).
Proceed to Test Step 2.
Air Inlet System Dirty Clean or
replace dirty air inlet system
components as necessary (WP 0167).
Proceed to Test Step 2.
Test Step 2. Verify Malfunction is
Resolved.
1. Turn battery disconnect switch to
ON position and start engine
(TM 5-3805-296-10).
2. At MSD, check for active
Diagnostic Code(s) Active
diagnostic code(s) (WP 0008).
Diagnose and repair active diagnostic
code(s) (WP 0005).
Proceed to step 3.
No Active Diagnostic Code(s)
Proceed to step 3.
3. At MSD, check for active event
E172 High Air Filter Restriction
code(s) (WP 0008).
Becomes Inactive Troubleshooting
complete.
E172 High Air Filter Restriction
Remains Active Repeat
troubleshooting from the beginning.
END OF WORK PACKAGE
