TM 5-3805-296-23-1
0033
Table 1. 0274 Atmospheric Pressure Sensor Diagnostic Codes Continued.
033
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 2. Test for Shorted
0274-04 Atmospheric
Atmospheric Pressure Sensor.
Pressure Sensor Voltage
1. Turn ignition switch and battery
Below Normal Continued
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Remove four bolts
(Figure 3, Item 1), washers
(Figure 3, Item 2), bushings
(Figure 3, Item 3), and splash
shield (Figure 3, Item 4) from
machine.
Figure 3. Splash Shield and Retaining Hardware.
0033
3. Disconnect connector CM-C4
(WP 0012, Figure 16) from
atmospheric pressure sensor
connector (WP 0012, Figure 15).
4. Turn battery disconnect switch and
start engine (TM 5-3805-296-10).
5. At MSD, check for active
274-3 Atmospheric Pressure Sensor
diagnostic code 274-4
Voltage Above Normal Becomes
Atmospheric Pressure Sensor
Active Replace atmospheric
Voltage Below Normal (WP 0008).
pressure sensor (WP 0244).
Proceed to Test Step 4.
274-4 Atmospheric Pressure Sensor
Voltage Below Normal Remains
Active Proceed to Test Step 3.