Fault Code Inst 13012 - New Holland T8010 Manual

Engine Coolant Temperature Sensor Signal Too High
Cause:
Engine coolant temperature sensor voltage out of range high.
Possible failure modes:
1. Engine coolant temperature sensor failed.
2. Engine coolant temperature sensor wiring harness problems (open circuit, short to power).
3. Instrument controller failure.
Solution:
Check the engine coolant temperature sensor resistance, the instrumentation controller and the wiring to the
engine coolant temperature sensor.
1. Test the resistance of the engine coolant temperature sensor.
Open up the tractor hood and locate the engine coolant temperature sensor.
Disconnect connector C215 from the engine coolant temperature sensor.
Inspect the connector. Clean the connection.
Measure the sensor resistance between the connection and the chassis ground as shown in the table below.
If the resistance is not as specified, replace the engine coolant temperature sensor.
If it is as specified, go to the next Step.
2. Check the wiring from the engine coolant temperature sensor to connector C061 at the instrumentation
controller.
The power supply at the engine coolant temperature sensor connector should be about 5 VDC when the tractor
key is in the 'RUN' position.
There should be good continuity from the engine coolant temperature sensor connector C215A to the cavity 5
of C060 and then to the cavity 7 of C061.
Check for an open circuit and shortage to power.
NOTE: Always inspect connector ends for damaged, bent or dislocated pins when troubleshooting.
Section 55 - Electrical System, Controller - Chapter 2

FAULT CODE INST 13012

Temp Deg F
0
10
50
70
90
110
130
55-2-27
Ohms
24K
18K
5.5K
3.3K
2K
1.3K
835