Locating System Problems Without Fault Codes; Controller-Based Resistance Tests - New Holland T8010 Manual

Locating System Problems Without Fault Codes

Controller-Based Resistance Tests

Pin ID
36-Pin
Conn Description
1 --> Can Low
2 --> Can High
3 --> Heat Signal Output
4 --> Heat Actuator Power
5 --> Blower Speed Output
6 --> Blower Actuator Power
7 --> Mode 1 Output
8 --> Mode 1 Act Power
9 --> Mode 2 Output
10 --> Mode 2 Act Power
11 --> Recirc Output
12 --> Recirc Act Power
13 --> Pressurizer Output
14 --> Pressure Act Power
15 --> Clutch Relay Coil
16 --> Condenser Fan Relay Coil DEFLT-Or
17 --> Switch Batt B+
18 --> Ground
19 RCV From Keypad
20 TK To Keypad
21 Cab Temp
22 Outlet Temp
23 Evap Temp
24 Outside Temp
25 Manual Switch
26 Auto Switch
Section 50 - Climate Control - Chapter 1
Wire/ Fault
Color Code
CAN LO
CAN
HIGH
If open line, see Heater Control Valve.
9C-Or
6D-Or
SBC-Or If open line, see Blower Speed Driver.
252-Or
102-Or If open line, see Mode Door Control.
MD-Or
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
AC-ATC
252-Or
Less than 10 ohms. If open line, see Controller Power
309-N
and Ground.
OPEN
262-Or
If open line, see Sensors. Perform initial temperature
versus resistance test to check if sensor is failing. See
SEN-Or same reference. Retest at sensor location/temperature for
most accurate result.
OPEN
If open line, see Sensors. Perform initial temperature
versus resistance test to check if sensor is failing. See
PB-S same reference. Retest at sensor location/temperature for
most accurate result.
OPEN
Less than 10 ohms. If open line, see Controller Power
266-Or
and Ground.
Less than 10 ohms. If open line, see Controller Power
136-Or
and Ground.
50-1-27
Expected Result/Reference