TM 10-3930-675-24-1
ENGINE ELECTRONIC CONTROL UNIT (ECU) (794) TROUBLESHOOTING - CONTINUED
0018 00
Table 2. Error Code 1227 - Sensor Voltage Supply Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1227 - Sensor Voltage Supply Failure 9. Turn ignition key to OFF
- Continued.
position and disconnect 31-pin
OEM
(round)
harness
connector and OEM harness
from engine ECU.
Measure resistance from 31- If engine harness requires
pin OEM harness connector replacement, notify Sustainment
pin 7 to OEM harness Maintenance.
connector pin 14. Resistance
should be greater than 100k
Ohms.
>100K OHMS
31-PIN OEM
OEM
HARNESS
HARNESS
USE TEST LEAD KIT P/N 3822758
0018 00-12
