TM 5-2410-241-23-1
0019
Table 2. Engine Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
172-4 Intake Manifold Air
8. Using digital multimeter
1. If continuity is found, proceed to
Temp Short to Ground -
(WP 0296), test for continuity
step 9.
Continued
between pin 2 on intake manifold
2. If continuity is not found, replace
air temperature jumper connector
intake manifold air inlet tempera-
NC-C1 (WP 0018, Figure 26) and
ture sensor harness (WP 0054).
pin 2 on intake manifold air tem-
Ensure all harness connectors
perature jumper connector NC-C2
are reconnected. Verify correct
(WP 0018, Figure 25).
operation of machine (TM 5-2410-
241-10).
9. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
10. Disconnect engine ECM connec-
tor N-C1 (WP 0018, Figure 2)
from ECM.
11. Using digital multimeter
1. If continuity is found, proceed to
(WP 0296), test for continuity
step 12.
between pin 1 on ECM harness
2. If continuity is not found, replace
connector N-C10 (WP 0018,
ECM harness (WP 0105). Ensure
Figure 23) and pin 35 on ECM
all harness connectors are recon-
harness connector N-C1 (WP
nected. Verify correct operation of
0018, Figure 2).
machine (TM 5-2410-241-10).
12. Using digital multimeter
1. If continuity is found, proceed to
(WP 0296), test for continuity
step 13.
between pin 2 on ECM harness
2. If continuity is not found, replace
connector N-C10 (WP 0018,
ECM harness (WP 0105). Ensure
Figure 23) and pin 18 on ECM
all harness connectors are recon-
harness connector N-C1
nected. Verify correct operation of
(WP 0018, Figure 2).
machine (TM 5-2410-241-10).
13. Using digital multimeter
1. If continuity is found, replace ECM
(WP 0296), test for continuity
harness (WP 0105). Ensure all
between pin 35 on ECM harness
harness connectors are recon-
connector N-C1 (WP 0018,
nected. Verify correct operation of
Figure 2) and all other pins on
machine (TM 5-2410-241-10).
ECM harness connector N-C1
2. If continuity is not found, replace
(WP 0018, Figure 2).
engine ECM (WP 0101). Ensure
all harness connectors are recon-
nected. Verify correct operation of
machine (TM 5-2410-241-10).
174-3 Fuel Temperature
1. Connect MSD (WP 0016). Select
1. If active 174-3 code is present,
Open/Short to +Batt
3176C D7 engine ECM and check
proceed to step 2.
for Diagnostic Codes or Event
2. If no active codes are present,
Codes (WP 0013).
problem does not exist at this
time. Resume normal operation.
2. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
0019-54