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 4. Place ignition switch in OFF
- Continued.
position and disconnect sensor
harness and OEM harness
connector from engine ECU.
a. Measure resistance from If engine harness requires
sensor harness connector pin replacement, notify Sustainment
18 to pin 7 of OEM harness Maintenance.
connector.
Resistance
should be greater than 100k
Ohms.
b. Measure resistance from If engine harness requires
sensor harness connector pin replacement, notify Sustainment
25 to pin 7 of OEM harness Maintenance.
connector.
Resistance
should be greater than 100k
Ohms.
c. Measure resistance from If engine harness requires
sensor harness connector pin replacement, notify Sustainment
45 to pin 7 of OEM harness Maintenance.
connector.
Resistance
should be greater than 100k
Ohms.
USE TEST LEAD
SENSOR
KIT P/N 3822758
HARNESS
>100K OHMS
OEM
HARNESS
0018 00-8