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Product: TRACK-TYPE TRACTOR
Model: D10T TRACK-TYPE TRACTOR RJG01954
Configuration: D10T TRACK-TYPE TRACTOR RJG00001-UP
(MACHINE) POWERED BY C27 Engine
Systems Operation
D10T Track-Type Tractor Hydraulic System
Media Number -RENR7971-08Publication Date -01/09/2013Date Updated -07/08/2018
i02298161
Electronic Control Module
SMCS - 7610-DTN; 7610-II
Illustration 1 g00785019
Electronic Control Module (ECM)
Illustration 2 g01141941
The electronic control module is located on the inside of the cab. The electronic controls are mounted
behind the panel to the rear of the operators seat.
The electronic control module (ECM) makes decisions that are based on input information and
memory information. After the ECM receives the input information, the ECM sends a corresponding
response to the outputs. The inputs and outputs of the ECM are connected to the machine harness
by two 70 contact connectors (J1 and J2). The ECM sends the information to the Caterpillar
Electronic Technician on the Cat Data Link.
Note: The ECM is not serviceable. The ECM must be replaced if the ECM is damaged. Replace the
ECM if a failure of the ECM is diagnosed.
Inputs
The inputs describe the status of the machine systems. Two types of inputs exist. The inputs can be
either a switch type or a sensor type. Switches provide an open, a ground, or a + battery signal to the
inputs of the controller. Sensors (frequency, pulse width modulation or voltage) provide a changing
signal to the sensor inputs of the controller. The inputs to the ECM are listed in table 1 and table 2.
Outputs
The ECM responds to decisions by sending electrical signals to the outputs. The outputs can create
an action or the outputs can provide information to the operator or the service technician. The
outputs of the machine ECM are listed in table 1 and table 2.
Data Links
The Implement ECM supports two data links.
Cat Data Link
CAN Data Link A
CAN Data Link B
The two data links are the main structure for the communications between the implement ECM and
any other ECM on the machine.
Input/Output
The CAT Electronic Technician (ET) is used in order to provide a connection for the service tool for
troubleshooting, testing, and calibrations. The data link is bidirectional. The data link allows the ECM
to receive information. The data link allows the ECM to send information.
Table 1
Implement ECM Contact Description J1(1)
No.(2) Function Type
1 Key Switch On
10 Cat Data Link + CDL +
11 5V Sensor Power Power
12 PCO/Ripper Solenoid 2A ON/OFF
13 Battery - Machine Ground
20 Cat Data Link - CDL -
21 "5V Sensor Return" Return
22 "Hydraulic Oil Temperature Sender" Passive Analog
23 Battery - Machine Ground
24 Implement Shutoff Switch SWB
26 "Location Code 0" SWG
27 "Location Code 1" SWG
28 "Location Code 2" SWG
31 Battery + Power
32 "Location Code Enable" SWG
33 "Single/Dual Tilt Trigger SW (N.C.)" SWG
34 "Single/Dual Tilt Trigger SW (N.O.)" SWG
35 Blade Manual Select Sw (N.C.) SWG
36 Main Pump Pressure Sensor Active 1
37 Tilt Pump Pressure Sensor Active 2
38 Battery + "Power"
39 Battery + "Power"
40 Blade Manual Select Sw (N.O.) SWG
41 Blade Control Mode Select Sw (N.C.) SWG
42 Blade Control Mode Select Sw (N.O.) SWG
43 Fan Return Filter Bypas Sw SWG
44 8V Sensor Power Sensor Power
45 8V Sensor Return 8V Sensor Return
46 Battery + "Power"
47 Battery + "Power"
48 Blade Raise Solenoid PWM Driver
49 Blade Lower Solenoid PWM Driver
50 Blade Solenoid Return PWM Driver Return
51 Blade Tilt Left Solenoid PWM Driver
52 Blade Tilt Right Solenoid PWM Driver
54 Quick Drop Solenoid Return PWM Driver Return
55 Auxilliary Solenoid (s) Return PWM Driver Return
56 10V Return 10V Return
57 Battery - Machine Ground -
58 Ripper Raise/Winch Spool In Solenoid PWM Driver
59 Ripper Lower/Winch Spool Out Solenoid PWM Driver
60 Ripper/Winch Solenoid Return PWM Driver Return
61 Ripper Shank In/Winch Drum Clutch Release Solenoid PWM Driver
62 Ripper Shank Out/Winch Low Speed Lock Solenoid PWM Driver
63 Ripper Autostow Sw (N.C.) SWG
64 Ripper Autostow Sw (N.O.) SWG
68 Quick Drop Solenoid PWM Driver
69 10V PHS Power 10 Volt Power Supply
70 Battery - Machine Ground (-)
(1) The ECM responds to an active input only when all the necessary conditions are satisfied.
(2) The connector contacts that are not listed are not used.
Table 2
Implement ECM Contact Description J2(1)
No.(2) Function Type
1 Key Switch Start STB
2 Implement Shutoff Sw - Pin 2 2A On/Off
4 AutoCarry Sol, Implement Shutoff Solenoid Load Return
5 Single Tilt Solenoid - Dual Tilt Valve S2 2A On/Off
6 Pitch Solenoid - Dual Tilt Valve S1 2A On/Off
7 Auto Carry Diverter Solenoid 2A On/Off
8 Dual Tilt/PCO (RV) Solenoid Return Load Return
22 Hydraulic Temperature Sensor Return Digital Return
23 Pilot Supply Filter Bypass Switch SWG
24 "Blade Control Raise/Lower Position Sensor 1" STG/PWM
25 "Blade Control Tilt Position Sensor " STG/PWM
26 "Blade Control Pitch Position Sensor" STG/PWM
27 Ripper Control Raise/Lower Position Sensor STG/PWM
28 Harness Code 0 SWG
29 Harness Code 1 SWG
30 Harness Code 1 SWG
31 Harness Code 3 SWG
32 Ripper Control In/Out Position Sensor STG/PWM
36 AutoBlade Assist Switch - Pin 1 SWG
37 AutoBlade Assist Switch - Pin 3 SWG
38 Auto Carry Switch - Pin 1 SWG
39 Auto Carry Switch - Pin 3 SWG
43 Ground Speed Radar STG/PWM
44 Winch Low Speed Lock (N.C.) SWG
45 Winch Control Low Speed Lock Switch (N.O.) SWG
46 Implement Shutoff Switch - Pin 4 SWG
47 Implement Shutoff Switch - Pin 6 SWG
48 Right Lift Cylinder Position Sensor STG/PWM
49 Left Lift Cylinder Position Sensor STG/PWM
64 Cut to Contour CAN Data Link + CAN B+
65 Cut to Contour CAN Data Link - CAN B-
67 Common CAN Data Link + CAN A+
68 Common CAN Data Link - CAN A-
(1) The ECM responds to an active input only when all the necessary conditions are satisfied.
(2) The connector contacts that are not listed are not used.
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