D10R, D11R and D11R Carrydozer Track-Type Tractors Implement Electronic Control System Caterpillar

Electronic Control Module (Implement)

Usage:

D11R 7PZ

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Illustration 1	g00635133
Location of the implement ECM

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Illustration 2	g00554751
Electronic Control Module (ECM)

The electronic control module (ECM) is the main component of the Implement Electronic Control system. The ECM makes decisions based on information that is received from input and memory. Then, the corresponding response is sent through the outputs. Each input and output of the ECM are joined to the machine harness by two connectors. Each of the connectors have 70 contacts. The ECM is located inside the lower right hand side of the right console. In order to gain access to the ECM, the operator seat and an access cover must be removed. The platform access plate can be removed in order to gain greater access. The J1 and J2 harness connectors are fastened to the ECM by using a socket head screw with an integral hex head. A 4.00 mm allen wrench is used in order to tighten the screw to 6 ± 1 N·m (53 ± 9 lb in). The ECM is programmable. The Caterpillar Electronic Technician service tool is used in order to flash the ECM with new software. For more information, see Testing and Adjusting, "Electronic Control Module (ECM) - Flash Program". There are no visual indicators on the ECM. Information regarding the Implement Electronic Control System is shown on the Vital Information Display System (VIDS). The implement ECM sends information to the VIDS main module by using the CAT data link. Each electronic control module that uses the CAT data link to communicate has a module identifier (MID). The MID for the implement ECM is the number 082.

I/O - Input/Output

Freq - Frequency

PWM - Pulse Width Modulated

Float - Internally pulled up to +12 DCV

N/O - Normally open

N/C - Normally closed

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Table 1
Contact Description Of Connector J1 (S/N: 9XR)
Type	Function	Active State	J1 Contacts ⁽¹⁾
Input	Right Lift Cylinder Position Sensor	PWM	2
Input	Blade Control Tilt Sensor ⁽²⁾	PWM	3
Input	Blade Pitch Sensor	PWM	4
I/O	Low Data Link ⁽²⁾	FUTURE USE	6
I/O	CAT Data Link −	-	7
I/O	CAT Data Link +	-	8
Return	Instrument Return	-	9
Output	+8 DCV Sensor Supply	+8 DCV	11
Input	Left Lift Cylinder Position Sensor	PWM	14
Input	Ripper Raise/Lower Sensor	PWM	15
Input	Blade Control Raise/Lower Sensor	PWM	16
I/O	High Data Link ⁽²⁾	FUTURE USE	18
Input	Pitch Forward Switch (NC)	Ground	20
Input	Pitch Forward Switch (NO)	Float	21
Input	Ripper Shank In/Out Sensor	PWM	25
Input	Pitch Back Switch (NC)	Ground	30
Input	Pitch Back Switch (NO)	Float	31
Input	Harness Code (Implement)(No. 0) ⁽²⁾	Ground	36
Input	Harness Code (Implement) (No. 1) ⁽²⁾	Ground	37
Input	Harness Code (Implement) (No. 2) ⁽²⁾	Ground	38
Input	Harness Code (Implement)(No. 3) ⁽²⁾	Ground	39
Input	Torque Converter Output Speed Sensor (+ Battery)	Freq	40
Input	Torque Converter Output Speed Sensor (Ground)	Freq	41
Input	Manual Select Switch (NC)	Ground	44
Input	Manual Select Switch (NO)	Float	45
Input	Pitch Forward Switch (Trigger)(NC)	Ground	46
Input	Pitch Forward Switch (Trigger) (NO)	Float	47
Input	Tilt Pump Pressure Sensor	PWM	51
Input	Main Pump Pressure Sensor	PWM	52
Input	Ripper Auto Stow Switch (NC)	Ground	54
Input	Ripper Auto Stow Switch (NO)	Float	55
Input	Mode Select Switch (NO)	Float	56
Input	Mode Select Switch (NC)	Ground	57
Input	Keyswitch	+Battery	58

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^( 1 )	Any contact that is not listed is not used.
^( 2 )	This contact is present but the contact is not used.

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Table 2
Contact Description Of Connector J2 (S/N: 9XR)
Type	Function	Active State	J2 Contacts ⁽¹⁾
Power	+Battery	+Battery	1
Ground	Ground	Ground	2
Output	Implement Lockout Solenoid	On/Off	3
Return	Solenoid Return	-	12
Return	Solenoid Return	-	13
Output	Blade Tilt Right Solenoid	Proportional	15
Ground	Ground	Ground	22
Power	+Battery	+Battery	23
Output	Blade Tilt Left Solenoid	Proportional	25
Input	Implement Lockout Switch (Locked) (NO)	+Battery	30
Input	Implement Lockout Switch (Feedback) (Unlocked) (NC)	+Battery	31
Output	Blade Float Indicator (LED 1)	Low	32
Output	ABA Indicator (LED 2)	Low	33
Output	Blade Lower/Float Solenoid Valve	Proportional	40
Output	Blade Raise Solenoid	Proportional	41
Output	Autocarry Indicator (LED 4)	Low	42
Output	Single Tilt Indicator (LED 3)	Low	43
Output	Pitch Regenerate Solenoid	On/Off	44
Output	Pitch Solenoid of The Dual Tilt Valve	On/Off	45
Ground	Ground	Ground	46
Power	+Battery	+Battery	47
Return	Solenoid Return	-	49
Output	Ripper Shank Raise Solenoid	Proportional	50
Output	Ripper Shank Out Solenoid	Proportional	51
Return	Solenoid Return	-	52
Output	Ripper Enable Solenoid	On/Off	55
Ground	Ground	Ground	56
Power	+Battery	+Battery	57
Return	Solenoid Return	-	59
Output	Ripper Shank Lower Solenoid	Proportional	60
Output	Ripper Shank In Solenoid	Proportional	61
Output	Single Tilt Solenoid of The Dual Tilt Valve ⁽²⁾	On/Off	68
Ground	Ground	Ground	69
Power	+Battery	+Battery	70

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^( 1 )	Any contact that is not listed is not used.
^( 2 )	This contact is present but the contact is not used.

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Table 3
Contact Description Of Connector J1 (S/N: AAF, 7PZ, AKT)
Type	Function	Active State	J1 Contacts ⁽¹⁾
Input (AAF Only)	Right Lift Cylinder Position Sensor	PWM	2
Input	Blade Control Tilt Sensor	PWM	3
Input (AKT Only)	TCO Speed Signal from ECPC	PWM	4
I/O	Low Data Link ⁽²⁾	FUTURE USE	6
I/O	CAT Data Link −	-	7
I/O	CAT Data Link +	-	8
Return	Instrument Return	-	9
Output	+8 DCV Sensor Supply	+8 DCV	11
Input (AAF Only)	Left Lift Cylinder Position Sensor	PWM	14
Input	Ripper Control Raise/Lower Sensor	PWM	15
Input	Blade Control Raise/Lower Sensor	PWM	16
I/O	High Data Link ⁽²⁾	FUTURE USE	18
Input	Pitch Forward Switch (NC)	Ground	20
Input	Pitch Forward Switch (NO)	Float	21
Input	Ground Speed Sensor ⁽²⁾	FREQ Autocarry Appl.	24
Input	Ripper Shank In/Out Sensor	PWM	25
Input	Load Selector Switch ⁽²⁾	PWM Autocarry Appl.	26
Input	Engine Overspeed Signal	Float	28
Input	Engine Overspeed Signal	Float	29
Input	Pitch Back Switch (NC)	Ground	30
Input	Pitch Back Switch (NO)	Float	31
Input	Harness Code (Implement)(No. 0)	Ground	36
Input	Harness Code (Implement) (No. 1)	Ground	37
Input	Harness Code (Implement) (No. 2)	Ground	38
Input	Harness Code (Implement)(No. 3)	Ground	39
Input AAF, 7PZ Only	Torque Converter Output Speed Sensor (+ Battery)	Freq	40
Input AAF, 7PZ Only	Torque Converter Output Speed Sensor (Ground)	Freq	41
Input	Manual Select Switch (NC)	Ground	44
Input	Manual Select Switch (NO)	Float	45
Input	Pitch Forward Switch (Trigger)(NC)	Ground	46
Input	Pitch Forward Switch (Trigger) (NO)	Float	47
Input	Tilt Pump Pressure Sensor	PWM	51
Input	Main Pump Pressure Sensor	PWM	52
Input	Ripper Auto Stow Switch (NC)	Ground	54
Input	Ripper Auto Stow Switch (NO)	Float	55
Input	Mode Select Switch (NO)	Float	56
Input	Mode Select Switch (NC)	Ground	57
Input	Keyswitch	+Battery	58

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^( 1 )	Any contact that is not listed is not used.
^( 2 )	This contact is present but the contact is not used.

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Table 4
Contact Description Of Connector J2 (S/N: AAF, 7PZ, AKT)
Type	Function	Active State	J2 Contacts ⁽¹⁾
Power	+Battery	+Battery	1
Ground	Ground	Ground	2
Output	Implement Lockout Solenoid	On/Off	3
Return	Solenoid Return	-	12
Return	Solenoid Return	-	13
Output	Solenoid (PCO)	Proportional	14
Output	Blade Tilt Right Solenoid	Proportional	15
Output	Single Tilt Solenoid of the Dual Tilt Valve ⁽²⁾	Proportional	16
Return	Solenoid Return	-	18
Ground	Ground	Ground	22
Power	+Battery	+Battery	23
Output	Blade Tilt Left Solenoid	Proportional	25
Input	Implement Lockout Switch (Locked) (NO)	+Battery	30
Input	Implement Lockout Switch (Feedback) (Unlocked) (NC)	+Battery	31
Output	Blade Float Indicator (LED 1)	Low	32
Output	ABA Indicator (LED 2)	Low	33
	M973-BR	NOT USED ⁽²⁾	34
Output	Blade Lower/Float Solenoid Valve	Proportional	40
Output	Blade Raise Solenoid	Proportional	41
Output	Autocarry Indicator (LED 4)	Low	42
Output	Single Tilt Indicator (LED 3)	Low	43
Ground	Ground	Ground	46
Power	+Battery	+Battery	47
	F799-BU	NOT USED ⁽²⁾	48
Return	Solenoid Return	-	49
Output	Ripper Shank Raise Solenoid	Proportional	50
Output	Ripper Shank Out Solenoid	Proportional	51
Return	Solenoid Return	-	52
Ground	Ground	Ground	56
Power	+Battery	+Battery	57
Output	Pitch Solenoid Of The Dual Tilt Valve	Proportional	58
Return	Solenoid Return	-	59
Output	Ripper Shank Lower Solenoid	Proportional	60
Output	Ripper Shank In Solenoid	Proportional	61
Output	Diverter Valve Solenoid	On/Off Autocarry Appl.	64
	H736-BU	NOT USED ⁽²⁾	65
Ground	Ground	Ground	69
Power	+Battery	+Battery	70

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^( 1 )	Any contact that is not listed is not used.
^( 2 )	This contact is present but the contact is not used.

ECM Input

Numerous inputs will inform the implement ECM about the status of the machine condition. Two types of inputs exist: switch type and sensor type. A switch will provide a signal to the ECM in the form of an open, ground, or +battery signal. Sensors provide a signal to the ECM that will change in a proportional manner in order to reflect changing machine conditions. Input information is provided in the preceding tables. The status of the inputs can be viewed. The inputs are accessed from the "Parameter Status" menu in the ET software.

ECM Output

The implement ECM responds to decisions by sending electrical signals through the various outputs. The outputs are either on/off type or the outputs are proportional type. The type of output depends on the requirements of the component. The outputs will create an action or the outputs provide information. Output information is provided in the preceding tables. The status of the outputs can be viewed. The outputs are accessed from the "Parameter Status" menu in the ET software.

Input/Output

The CAT data link is bidirectional. This will allow the ECM to receive information and the ECM can send information. The data link is designed to carry communications between the electronic control modules and communications between service tools and electronic control modules on the machine. The communication permits information to be shared. The data link is not a visible component. The data link consists of internal ECM circuits and the connecting harness wiring. For more information, see the topic System Operation, "Data Link".