TM 10-3930-675-24-1
ENGINE TEMPERATURE SENSORS AND CIRCUITS TROUBLESHOOTING - CONTINUED
0021 00
Table 1. Error Code 1144 - Coolant Temperature
Sensor Circuit Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1144 - Coolant Temperature Sensor 4. Ensure ignition switch is in
Circuit Failure - Continued.
OFF position. Disconnect
sensor harness connector from
engine ECU.
a. Inspect engine ECU and Clean and repair connector(s) as
sensor harness connectors required (WP 0113 00).
for dirty, corroded, bent,
broken, and pushed back or
extended pins.
b. Check engine ECU and
Remove dirt and moisture from
sensor harness for dirt or
connector. Replace missing or
moisture in or on connectors
damaged connector seals (WP
and for missing or damaged
0113 00).
connector seals.
0021 00-3