TM 5-3805-296-23-1
0033
Table 1. 0274 Atmospheric Pressure Sensor Diagnostic Codes Continued.
033
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
3. Disconnect connector CM-C4
0274-03 Atmospheric
(WP 0012, Figure 16) from
Pressure Sensor Voltage
atmospheric pressure sensor
Above Normal Continued
connector (WP 0012, Figure 15).
4. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
5. Using digital multimeter
Voltage Less Than 4.5 V Proceed to
(WP 0540), test for voltage
Test Step 2.
between connector CM-C4
Voltage 5.0 0.5 V Proceed to Test
terminal 1 and terminal 2
Step 3.
(WP 0012, Figure 16).
Test Step 2. Test Basic Engine
Wiring Harness for High Resistance
or Open.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Connect jumper wire between
terminal 1 and terminal 2
of connector CM-C4
(WP 0012, Figure 16).
3. Disconnect the following:
a. Connector AW-C1
(WP 0012, Figure 36) from fuel
pressure sensor connector
(WP 0012, Figure 35).
b. Connector CM-C9
(WP 0012, Figure 26) from oil
pressure sensor connector
(WP 0012, Figure 25).
c.
Connector CM-C7
(WP 0012, Figure 22)
from intake air pressure
sensor connector
(WP 0012, Figure 21).
d. Connector CM-C1 (WP 0012,
Figure 30) from engine ECM.
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Replace engine ECM (WP 0252).
between connector CM-C1
Proceed to Test Step 7.
terminal 17 and terminal 72
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 30).
Replace basic engine wiring harness
(WP 0251).
Proceed to Test Step 7.
0033-3