New Holland T8010 Manual page 1008

Steps and Test Point
2. Measure resistance from C72-1 through clutch
screw to ground screw on bracket. Is resistance
between 3.6-4.2K ohms?
3. Keyswitch ON and DEFOG/DEFROST switch ON.
Is 12V present at male harness connector to
clutch?
4. Turn key switch ON. Check connector J8, pin 17.
Is there 12 volts present?
NOTE: Refer to Accessing the HVAC Box at the end
of this Section if required.
5. Check clutch relay, pin 5. Is 12 volts present?
6. Check continuity from clutch relay, pin 5 to
connector 139, pin C
7. Check continuity from connector 139, pin C to
connector 333, pin26
8. Check continuity from connector 333, pin 26 to
connector 60, pin P.
9. Check continuity from connector 60, pin P to
connector 72.
10. Check continuity from connector 333, pin 26 to
connector 72.
11. Check connector J8, pin 15 to ground. Is 12 volts
present?
Section 50 - Climate Control - Chapter 1
YES - Go to next Step.
NO - If open line or resistance is severely out of range,
replace the clutch.
RI01H035
NOTE: If clutch is shorted, also check condition of
fuse 36 (5 amp). The clutch draws enough amperage
to cause fuse 36 to blow.
YES - Clutch tests okay. Check for fault codes on
Display.
NO - Go to next Step.
YES - Go to next Step.
NO - Check condition of fuse 36 (5 amp).
YES - Go to Next Step.
NO - Go to Step 9.
OKAY - Go to next Step.
NOT OKAY - Locate and repair the open condition
between the clutch relay, pin 5 to connector 139, pin C.
OKAY - Go to next Step.
NOT OKAY - Locate and repair the open condition
between the connector 139, pin C to connector 333,
pin 26.
OKAY - Go to next Step.
NOT OKAY - Locate and repair the open condition
between the connector 333, pin 26 to connector 60,
pin P
OKAY - Go to Step 12.
NOT OKAY - Locate and repair the open condition
between the connector 60, pin P to connector 72.
OKAY - Go to next Step.
NOT OKAY - Locate and repair the open condition
between the connector 333, pin 26 to connector 72.
YES - Go to next Step.
NO - See ATC Controller Test.
50-1-37
Corrective Actions