314E CR and 314E SR Excavator Systems Caterpillar

Electronic Control Module

Usage:

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Illustration 1	g02123553
(1) The Machine ECM is located behind the operator seat and below the fuse panel.

Connector Contact Numbers

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Illustration 2	g02963156
Machine ECM (1) Controller (2) J2 Connector (3) J1 Connector

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Illustration 3	g06195503
Connectors of Machine ECM (2) J2 Connector (3) J1 Connector

Machine ECM

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Table 1
Contact Description J1⁽¹⁾
No.⁽²⁾	Function	Type
1	+ BATTERY	Power
2	GROUND	Ground
3	Swing Brake Solenoid	Output
4	Boom Angle Sensor (Analog)	Input
5	Stick Angle Sensor (Analog)	Input
6	Offset Boom/HCR Angle Sensor (Analog)	Input
8	5 VDC Supply	Power
11	Left J/S Switch 1 (Upper)	Input
12	Left J/S Switch 2 (Front)	Input
13	+ BATTERY	Power
14	GROUND	Ground
16	Boom Up Control Pressure Sensor	Input
17	Boom Down Control Pressure Sensor	Input
18	Analog Return	Ground
19	ATT Stem 3 Status	Input
20	ATCH Stem 4 Status	Output
21	Right J/S Switch 1 (Upper)	Input
22	Right J/S Switch 1 (Fore)	Input
23	Key Start Switch	Input
24	24 VDC Supply	Power
25	Travel Speed Change Solenoid	Output
26	Stick In Control Pressure Sensor for TCS	Input
27	8 VDC Supply	Power
31	Implement Pressure Switch (J/S Pressure Switch (for S-HEX))	Input
32	STD Implement Pressure Switch (For S-HEX)	Input
33	Hydraulic Lock Solenoid	Output
34	Stick Out Control Pressure Sensor for TCS	Input
35	Swing Control Pressure Sensor for TCS	Input
36	Boom Cylinder Head Pressure Sensor	Input
37	Boom Cylinder Rod Pressure for Crane/SMTBM/BLRS	Input
39	Straight Travel Pressure Switch (Travel Pressure Switch (S-HEX))	Input
40	One Touch Low Idle Switch	Input
41	Foot Switch	Input
42	Tool - 10, 11 Detect Status	Ground
44	Bucket PSC for CGC	Output
45	Auxiliary Pedal 1 Continuous Pressure Sensor/ATCH Right Pedal	Input
47	Stick Angle PWM Sensor for CGC	Input
48	NFC 1 Pressure Sensor	Input
49	NFC 2 Pressure Sensor	Input
50	Boom Angle PWM Sensor for CGC	Input
51	Thumbwheel - LH/Left J/S Switch 4	Input
52	Thumbwheel - RH/Right J/S Switch 4	Input
53	Pump 1 Pressure Sensor	Input
54	Pump 2 Pressure Sensor	Input

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⁽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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Table 2
Contact Description J2⁽¹⁾
No.⁽²⁾	Function	Type
1	ATCH Stem 1 Extend EPRV/REPRV for TCS	Output
2	ATCH Line 1 REPRV for TCS	Output
3	ATCH Stem 2 Retract EPRV/REPRV for TCS	Output
4	ATCH Stem 2 Extend EPRV/REPRV for TCS	Output
8	PS Pressure EPRV	Output
9	Boom Regen REPRV	Output
10	Left Offset REPRV for POB	Output
13	ATCH Stem 1 Retract EPRV/REPRV for TCS	Output
16	Cat Data Link (-)	/Input/Output
18	Right Offset REPRV for POB	Output
19	PRV Return	Ground
21	PRV Return	Ground
22	PRV Return	Ground
23	ATCH Line 2 REPRV for TCS	Output
24	Pump 1 Displacement Sensor	Input
25	Cat Data Link (+)	Input/Output
27	Hydraulic Lock Cancel Switch	Input
29	Boom Up Limit REPRV for Crane/POB	Output
31	ATT Stem 3 Extend EPRV for TCS	Output
34	ATT Stem 3 Retract EPRV for TCS	Output
38	Bucket Out Limit EPRV for Crane/E-Fence	Output
39	Boom Down REPRV for TCS/E-Fence/SMTBM(S1)/POB	Output
40	Stick In REPRV for TCS/POB	Output
41	Stick Out REPRV for TCS/Crane/POB	Output
42	Stick Out Avoidance EPRV for POB	Output
43	NFC 2 Limit EPRV for TCS	Output
45	Attachment CAN Data Link (+)	Input/Output
46	Attachment CAN Data Link (-)	Input/Output
47	CAN (J1939) Data Link (+)	Input/Output
48	CAN (J1939) Data Link (-)	Input/Output
49	CAN (J1939) Data Link Shield	Ground
50	Machine CAN Data Link (+)	Input/Output
51	Machine CAN Data Link (-)	Input/Output
53	NFC 1 Limit EPRV for TCS	Output

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⁽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.