TM 10-3930-675-20-1
0017 00-8
ENGINE ELECTRONIC CONTROL UNIT (ECU) TROUBLESHOOTING - CONTINUED
0017 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
- Continued
4. Place ignition switch to OFF
position
and
disconnect
sensor harness and OEM
harness
connector
from
engine ECU.
a. Measure resistance from
sensor harness connector
pin 18 to pin 7 of OEM
harness
connector.
Resistance
should
be
greater than 100k ohms.
If engine harness requires
replacement, notify SRA.
b. Measure resistance from
sensor harness connector
pin 25 to pin 7 of OEM
harness
connector.
Resistance
should
be
greater than 100k ohms.
If engine harness requires
replacement, notify SRA.
c. Measure resistance from
sensor harness connector
pin 45 to pin 7 of OEM
harness
connector.
Resistance
should
be
greater than 100k ohms.
If engine harness requires
replacement, notify SRA.
USE TEST LEAD
KIT P/N 3822758
SENSOR
HARNESS
OEM
HARNESS
>100K OHMS
