416E, 420E and 430E Backhoe Loaders Connector Contact Description Caterpillar

Table 1
The Contact Description for the Machine ECM (Connector "J1") ⁽¹⁾
No.	Function	Type
1	Key Start Switch ON	Key Start Switch ON
2	Speed Sensor (Transmission Output +)	Frequency
3	Speed Sensor (Transmission Output -)	Frequency
10	Cat Data Link +	Input/Output
11	Hydraulic Load Sensor Power (5V)	Battery (+)
13	Ground	Battery (-)
14	Backlight Input	Driver
20	Cat Data Link -	Input/Output
21	Sensor Return (5V)	Analog Sensor Return
23	Machine Ground	Battery (-)
26	Transmission Auto/Manual (Auto)	Switch to Ground
27	Transmission Auto/Manual (Manual)	Switch to Ground
28	Quick Coupler Pins - Parity SIG (SWG)	Switch to Ground
29	Temperature Sensor (Hydraulic Oil )	Analog
31	Unswitched Battery 1 (+)	Battery (+)
33	Switch (Stabilizer Lever Position)	Switch to Ground
34	Quick Coupler Pins - Engage	Switch to Ground
35	Quick Coupler Pins - Disengage	Switch to Ground
36	Active Analog	Ground
38	Unswitched Battery 4 (+)	Battery (+)
39	Unswitched Battery 2 (+)	Battery (+)
40	Switch (Continuous Flow)	Switch to Ground
41	Switch (Ride Control)	Switch to Ground
42	Park Brake - Engaged	Switch to Ground
43	Switch (Transmission Lock)	Switch to Ground
44	8 Volt Sensor Power	Power
45	8 Volt Sensor Return	Return
48	Solenoid (Forward Clutch 1)	PWM driver
49	Solenoid (Reverse Clutch 2)	PWM driver
50	Clutch Return	PWM Driver Return
51	Solenoid 1 (Loader Auxiliary Valve)	PWM driver
52	Solenoid 2 (Loader Auxiliary Valve)	PWM driver
57	Machine Ground	Battery (-)
58	Solenoid 1 (Hoe Auxiliary Valve 1)	PWM driver
59	Solenoid 2 (Hoe Auxiliary Valve 1)	PWM driver
60	Auxiliary Hydraulic Return	PWM Driver Return
61	Solenoid 1 (Hoe Auxiliary Valve 2)	PWM driver
62	Solenoid 2 (Hoe Auxiliary Valve 2)	PWM driver
63	Switch (Implement Lockout) - Not Locked	Switch to Ground
64	Switch (Implement Lockout) - Locked	Switch to Ground
69	10 Volt Power Supply ("Accugrade")	Power
70	Machine Ground (10 Volt Return)	Battery (-)

Show/hide table

^( 1 )

"J1" is a 70 pin connector.

Show/hide table

Table 2
Contact Description for the Machine ECM (Connector "J2") ⁽¹⁾
No.	Function	Type
1	Fwd/Rev Parity/Autoshift	+Battery
2	Solenoid (Fwd High Clutch)	PWM Driver
3	Feature Alarm (2A ON/OFF)	PWM
4	Drive 1-3 Return 1 (ON/OFF 1-5)	On/Off Driver
5	Transmission Clutch (Speed 1)	On/Off Driver
6	Transmission Clutch (Speed 2)	On/Off Driver
7	Transmission Clutch (Speed 3)	On/Off Driver
9	Ride Control Relay	On/Off Driver
10	Action Lamp	Driver
11	Implement Enable Lamp	Driver
12	Action Alarm/Stabilizer	Driver
13	Backup Alarm Lamp	Driver
14	Alternator R Terminal	R-Terminal
15	Position Sensor (Boom Cylinder)	PWM
16	Position Sensor (Stick Cylinder)	PWM
17	Position Sensor (Bucket Cylinder)	PWM
18	Position Sensor (E-Stick Cylinder)	PWM
19	Hydraulic Filter Bypass	Driver
20	Torque Limiter Relay	Driver
21	Hydraulic Over Temp Lamp	Driver
23	Switch (Hydraulic Oil Filter Bypass)	Switch to Ground
24	Loader Auxiliary - Thumb Roller	Switch to Ground/PWM
25	LH Joystick Roller (8th Function)	Switch to Ground/PWM
26	Shuttle Forward	Frequency
27	Shuttle Reverse	Frequency
30	Brake Fluid Level/Pressure	Switch to Ground
32	Position Sensor (Swing)	Switch to Ground/PWM
37	Switch (Continuous Flow) - Normally Closed	Switch to Ground
38	Switch (Continuous Flow) - Normally Open	Switch to Ground
41	RH Joystick Slider (7th Function)	Switch to Ground/PWM
46	Switch (Ride Control Auto)	Switch to Ground
47	Switch (Transmission Lock) - Locked	Switch to Ground
54	RH Joystick - Neutralize	Switch to Ground
55	Switch (Continuous Flow) - Normally Closed	Switch to Ground
63	Engine Ground	Ground
67	CAN A+	Input/Output
68	CAN A-	Input/Output

Show/hide table

^( 1 )

"J2" is a 70 pin connector.

Display Module (Dash)

Show/hide table




Illustration 3	g00901469
Rear view of monitor

(1) 24 pin connector

Show/hide table

Table 3
Contact Description for the Advisor Display Module (Dash)
Contact Number	Function	Type
1	Battery (12 DCV)	Battery (+)
2	Battery Negative (12 DCV)	Battery (-)
3	Keyswitch Input	Battery (+)
8	Can Data Link +	Input/Output
9	Can Data Link -	Input/Output
34	Ground Check CAN -	Input/Output
50	Ground Check CAN +	Input/Output
54	Power Mod SIG +	Battery (+)
55	Power Mod SIG -	Batery (-)
56	Chassis Ground	Ground
57	Accugrade Alarm Control	Output