TM 5-2410-241-23-1
0019
Table 2. Engine Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
174-4 Fuel Temperature
6. Disconnect engine ECM connec-
Short to Ground -
tor N-C1 (WP 0018, Figure 2)
Continued
from ECM.
7. Using digital multimeter
1. If continuity is found, proceed to
(WP 0296), test for continuity
step 8.
between pin 1 on ECM harness
2. If continuity is not found, replace
connector N-C9 (WP 0018,
ECM harness (WP 0105). Ensure
Figure 24) and pin 33 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).
8. Using digital multimeter
1. If continuity is found, proceed to
(WP 0296), test for continuity
step 9.
between pin 2 on ECM harness
2. If continuity is not found, replace
connector N-C9 (WP 0018,
ECM harness (WP 0105). Ensure
Figure 24) 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).
9. Using digital multimeter
1. If continuity is found, replace ECM
(WP 0296), test for continuity
harness (WP 0105). Ensure all
between pin 33 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).
190-2 Loss of Engine Speed
1. Connect MSD (WP 0016). Select
1. If active 190-2 code is present,
Signal
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).
CAU T I ON
Do not disconnect connector from crankshaft sensor. Failure to follow this caution could cause equip-
ment damage.
3. Disconnect ECM harness connec-
tor N-C13 (WP 0018, Figure 27)
from crankshaft position sensor
pigtail connector (WP 0018,
Figure 28) (WP 0094).
0019-57
