TM 10-3930-675-24-1
ENGINE TEMPERATURE SENSORS AND CIRCUITS TROUBLESHOOTING - CONTINUED
0021 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 4.
Place ignition switch in
OFF If
resistance is
not as
specified,
Circuit Failure - Continued.
position and disconnect engine replace coolant temperature
harness
from
coolant sensor (WP 0094 00).
temperature sensor. Perform
the
following
resistance
checks:
A (or 1) of coolant
temperature sensor to engine
block ground. Resistance
should be greater than 100k
Ohms.
B (or 2) of coolant
temperature sensor to engine
block ground. Resistance
should be greater than 100k
Ohms.
>100K Ohms
USE TEST LEAD KIT P/N 3822758
5. Place ignition switch in OFF
position. Disconnect sensor
harness from engine ECU.
6. Ensure ignition switch is in
OFF position. Disconnect
sensor harness from coolant
temperature sensor.
0021 00-7