TM 5-2420-231-23-1
0026
Table 1. Air Filter Restriction Indicator Fault - Continued.
026
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Air Filter Restriction
Indicator Fault - Continued
Figure 2. Aspirate Check Valve and Hoses.
0026
Test Step 3. Check for Shorted Air
Filter Restriction Switch.
1. Disconnect main chassis wiring
harness connector (WP 0007, Fig-
ure 37) from air filter restriction
switch (WP 0007, Figure 38).
2. Disconnect air filter restriction
switch (WP 0007, Figure 38).
3. Using a digital multimeter, test for
Continuity - Replace air filter restriction
continuity between air filter restric-
switch (WP 0100).
tion switch (WP 0007, Figure 38)
Proceed to Test Step 10.
terminals A and B. There should
No Continuity - Proceed to Test Step 4.
be no continuity.
