TM 10-3930-675-24-1
ENGINE AMBIENT AIR PRESSURE SENSOR AND CIRCUITS TROUBLESHOOTING - CONTINUED
0022 00
Table 2. Error Code 1222 - Low Voltage Detected at Ambient
Air Pressure Sensor Circuit Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1222 - Low Voltage Detected at 10. Measure resistance from pin 6 a. If resistance is as
specified,
Ambient Air Pressure Sensor Circuit - Continued.
of sensor harness connector to
replace ambient air pressure
all other pins in connector.
sensor (WP 0092 00).
Resistance should be greater b. If engine harness requires
than 100k Ohms.
replacement,
notify
Sustainment Maintenance.
USE TEST LEAD
KIT P/N 3822758
>100K Ohms
11. Place ignition switch in OFF
position. Disconnect sensor
harness connector from ECU.
12. Inspect sensor harness and Clean and repair connector(s) as
ECU connectors for dirty, required (WP 0113 00).
corroded,
bent,
broken,
pushed back, and extended
pins.
13. Check sensor harness and
Remove dirt and moisture from
ECU for dirt or moisture in or
connector. Replace missing or
damaged connector seals (WP
on connector and for missing
0113 00).
or damaged connector seals.
0022 00-10