Lafayette 3612 Engine BBDHR00 - Caterpillar

Table 4
Machine ECM Connector J2 Contact Descriptions (1)
No. Function Type
87 Analog & PWM Return 4 Analog & PWM Return 4
88 VAB Down VAB Down
89 Stick Unload Valve Stick Unload Valve
90 Machine ECM Data Sharing CAN4 +
91 Machine ECM Date Sharing CAN4 -
92 8v Supply 8v Supply
96 QCPLR Lock/Unlock Solenoid 2 QCPLR Lock/Unlock Solenoid 2
97 VAB Up VAB Up
99 PWM/Freq in 12 PWM/Freq in 12
104 QCPLR Lock/Unlock Solenoid 1 QCPLR Lock/Unlock Solenoid 1
110 Squeeze Head End Pressure Sensor PWM/Freq In 9
111 Squeeze Rod End Pressure Sensor PWM/Freq In 10
112 Swing Brake Solenoid (On/Off) Swing Brake Solenoid (On/Off)
113 Boom Down Ele Check Boom Down Ele Check
114 PRV 17-18 Ret PRV 17-18 Ret
117 PRV 13-14 Ret PRV 13-14 Ret
118 PRV 15-16 Ret PRV 15-16 Ret
119 PRV 11-12 Ret PRV 11-12 Ret
(1) Contacts that are not listed are not used.Body Control Module
Table 5
BCM Connector Contact Descriptions (1)
No. Function Type
1 -B Power Supply
2 Driver Return 9-12 PRV Return
3 Driver Return 5-8 PRV Return
4 +B Power Supply
5 Driver Return 1-4 PRV Return
8 J1939 CAN2 +
9 Machine Can Data Link (Local Can) CAN1 +
13 CTWT Removal Switch CTWT Removal Switch
16 Engine Start Button LED (Green) Low Current Driver 1
17 Engine Start Button LED (Red) Low Current Driver 2
18 ECM (Wake Up) Low Current Driver 3
19 Dome Light / Foot Light Low Current Driver 4
20 8V Supply Power Supply
21 Wake Up Input 1 Wake up 1 (Switch To Battery)
22 Wake Up Input 3 Wake up 3 (Switch To Ground)
23 Main power relay On/Off Driver / Relay 1
24 M-ECM (Primary) Key Switch On/Off Driver / Relay 2
27 J1939 CAN2 -
28 Machine Can Data Link (Local Can) CAN1 -
29 Travel Alarm Cancel Switch Switch To Ground 7
30 Washer Fluid Level Switch Switch To Ground 8
31 STG Return 7-8 STG Return 7-8
33 Beacon Switch Beacon Switch
36 Refuel Pump Relay Low Current Driver 5
37 Engine Key Switch Low Current Driver 6
38 Boom Light Relay Low Current Driver 7
39 Chassis / Cab Light Relay Low Current Driver 8
40 Wake Up Input 2 Wake up 2 (Switch To Ground)
41 Key Switch (On-Detect) Key Switch
42 Straight Travel Solenoid On/Off Driver / Relay 3
43 QCPLR Solenoid On/Off Driver / Relay 4
44 Electric Fan Control 1 High side PWM output 1
45 Electric Fan Control 2 High side PWM output 2
59 Heavy Lift Solenoid On/Off Driver / Relay 5
60 Travel Alarm On/Off Driver / Relay 6
61 Caution Lamp (for Crane) On/Off Driver / Relay 7
62 Boom Up Electric Check Solenoid On/Off Driver / Relay 8
63 Electric Fan Control 3 High side PWM output 3
64 Seat Belt Caution On/Off Driver / Relay 9
67 Att Hydraulic Oil Filter Switch Switch To Ground 5
68 STG Return 5-6 Switch To Ground Return
69 Refuel Start Switch Switch To Ground 6
77 Key Switch (Off-Detect) Switch To Battery 8
78 Travel Speed Solenoid On/Off Driver / Relay 10
79 Fine Swing Solenoid On/Off Driver / Relay 11
80 Engine Start Signal On/Off Driver / Relay 12
81 Hydraulic Reverse Fan Solenoid On/Off Driver / Relay 13
(1) Contacts that are not listed are not used.