TM 5-2410-241-23-1
0019
Table 2. Engine Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
275-3 Turbo Inlet Pressure
9. Disconnect engine ECM connec-
Open/Short to +Batt -
tor V-C4 (WP 0018, Figure 1).
Continued
10. Using digital multimeter
1. If continuity is found, proceed to
(WP 0296), test for continuity
step 11.
between pin B on turbocharger
2. If continuity is not found, replace
inlet pressure sensor connector
ECM harness (WP 0105). Ensure
V-C20 (WP 0018, Figure 37) and
all harness connectors are recon-
pin 3 on engine ECM connector
nected. Verify correct operation of
V-C4 (WP 0018, Figure 1).
machine (TM 5-2410-241-10).
11. Using digital multimeter
1. If continuity is found, proceed to
(WP 0296), test for continuity
step 12.
between pin C on A turbocharger
2. If continuity is not found, replace
inlet pressure sensor connector
ECM harness (WP 0105). Ensure
V-C20 (WP 0018, Figure 37) and
all harness connectors are recon-
pin 15 on engine ECM connector
nected. Verify correct operation of
V-C4 (WP 0018, Figure 1).
machine (TM 5-2410-241-10).
12. Using digital multimeter
1. If continuity is found, replace ECM
(WP 0296), test for continuity
harness (WP 0105). Ensure all
between pin 15 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).
275-4 Turbo Inlet Pressure
1. Connect MSD (WP 0016). Select
1. If active 275-4 code is present,
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 turbo charger inlet
pressure sensor connector V-C20
(WP 0018, Figure 37) from turbo
charger inlet pressure sensor.
4. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-2410-241-10).