TM 5-2410-241-23-1
0019
Table 2. Engine Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
262-3 5 Volt DC Power Sup-
22. Disconnect engine ECM connec-
ply Short to +Batt -
tor V-C4 (WP 0018, Figure 1)
Continued
from ECM.
23. Using digital multimeter
1. If continuity is found, replace ECM
(WP 0296), test for continuity
harness (WP 0105). Ensure all
between pin 2 on engine ECM
harness connectors are recon-
connector V-C4 (WP 0018,
nected. Verify correct operation of
Figure 1) and all other pins on
machine (TM 5-2410-241-10).
engine ECM connector V-C4
2. If continuity is not found, proceed
(WP 0018, Figure 1).
to step 24.
24. Using digital multimeter
1. If continuity is found, replace ECM
(WP 0296), test for continuity
harness (WP 0105). Ensure all
between pin 3 on engine ECM
harness connectors are recon-
connector V-C4 (WP 0018,
nected. Verify correct operation of
Figure 1) and all other pins on
machine (TM 5-2410-241-10).
engine ECM connector V-C4
2. If continuity is not found, replace
(WP 0018, Figure 1).
engine ECM (WP 0101). Ensure
all harness connectors are recon-
nected. Verify correct operation of
machine (TM 5-2410-241-10).
262-4 5 Volt DC Power Sup-
1. Connect MSD (WP 0016). Select
1. If active 262-4 code is present,
ply Short to Ground
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).
3. Disconnect ECM harness connec-
tor at oil pressure sensor N-C3
(WP 0018, Figure 19) from oil
pressure sensor (WP 0091).
4. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-2410-241-10).
5. Check for Diagnostic Codes or
1. If active code 262-4 code is pres-
Event Codes (WP 0013).
ent, proceed to step 6.
2. If 262-4 code is not active,
replace oil pressure sensor
(WP 0091). Ensure all harness
connectors are reconnected. Ver-
ify correct operation of machine
(TM 5-2410-241-10).
6. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
0019-67