TM 5-3805-296-23-1
0023
Table 1. 0110 Engine Coolant Temperature Sensor Diagnostic Codes Continued.
023
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
0110-04 Engine Coolant
Temperature Sensor Voltage
Always inspect harness connectors that are involved in the circuit. Poor
Below Normal
connections can often be the cause of a problem in an electrical circuit.
Verify that all connections in the circuit are clean and secure and that all
connections are in good condition. If a problem with the connection is
found, correct the problem and verify that this malfunction or diagnostic
code is active before performing this procedure.
Perform open or short-circuit test at each harness connection to identify
the correct harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
DIAGNOSTIC CODE SET CONDITION
Engine ECM Detects Below Normal Voltage on Coolant Temp Sensor Signal
Circuit 995.
POSSIBLE CAUSE
Basic Engine Wring Harness Shorted.
Coolant Temperature Sensor.
Engine ECM.
Test Step 1. Test for Shorted Coolant
Temperature Sensor.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Disconnect connector CM-C10
(WP 0012, Figure 28) from coolant
temperature sensor connector
(WP 0012, Figure 27).
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
110-4 Engine Coolant Temperature
4. At MSD, check for active
Sensor Voltage Below Normal
diagnostic code 0110-04 Engine
Becomes Inactive Replace coolant
Coolant Temperature Sensor
temperature sensor (WP 0220).
Voltage Below Normal (WP 0008).
Proceed to Test Step 3.
110-4 Engine Coolant Temperature
Sensor Voltage Below Normal
Remains Active Proceed to Test
Step 2.