TM 5-3805-296-23-2
0086
Table 1. 1431 Pilot Air Pressure Sensor Diagnostic Codes Continued.
086
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 1. Test Pilot Air Press
1431-03 Pilot Air Pressure
Sensor Circuit, Battery + Circuit, and
Sensor Voltage Above
Ground Circuit Function.
Normal Continued
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Remove six bolts
(Figure 1, Item 1), washers
(Figure 1, Item 2), and step
(Figure 1, Item 3) from cab
(Figure 1, Item 4).
Figure 1. Cab Step.
0086
3. Disconnect connector W-C31
(WP 0012, Figure 65) from supply
air pressure sensor connector
(WP 0012, Figure 64).
4. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
5. Using digital multimeter
Voltage Greater Than 5.8 V Proceed
(WP 0540), test for voltage
to Test Step 2.
between connector W-C31
Voltage 4.5 to 5.8 V Proceed to
terminal C and terminal B
step 6.
(WP 0012, Figure 65).
Voltage Less Than 4.5 V Proceed to
Test Step 4.
