TM 10-3930-675-20-1
0020 00-8
ENGINE TEMPERATURE SENSORS AND CIRCUITS TROUBLESHOOTING - CONTINUED
0020 00
Table 2. Error Code 1145 - Coolant Temperature Sensor Circuit Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1145 - Coolant Temperature Sensor
Circuit Failure - Continued
a. Inspect sensor harness and
engine ECU connectors for
dirty,
corroded,
bent,
broken, and pushed back or
extended pins.
Clean and repair connector(s) as
required (WP 0111 00).
b. Check sensor harness and
engine ECU for dirt or
moisture
in
or
on
connectors and for missing
or
damaged
connector
seals.
Remove dirt and moisture from
connector. Replace missing or
damaged connector seals (WP
0111 00).
7. Place ignition switch in OFF
position. Disconnect engine
harness
from
coolant
temperature
sensor
and
disconnect sensor harness
connector from engine ECU.
Perform
the
following
resistance checks:
If engine harness requires
replacement, notify SRA.
a. Measure resistance from
pin 2 of sensor harness
connector to all other pins
in connector. Resistance
should be greater than 100k
ohms.
USE TEST LEAD KIT P/N 3822758
>100K OHMS
