PUMP GP-FUEL INJECTION 4588504 - Caterpillar

Table 2
Auxiliary Attachment ECM Connector (Switch Panel) (1)Connector C301
Contact Descriptions(2)
No. Function
2 Fuel Level Sensor
3 Hydraulic Oil Temperature Sensor
4 Analog Return
7 Air Filter Plugged Switch
8 Capsule Filter Switch
10 Hydraulic Attachment Filter Switch
11 Olwd Alarm Cancel Switch
13 Engine Oil Level Switch (320D)
14 Coolant Level Switch
15 Attachment Stem 4 Status
18 Attachment Stem 1 Status
(1) This ECM is linked to the Machine ECM via the CAN Data Link. All faults of the components attached to the Auxiliary Attachment ECM are reported by the Machine ECM.
(2) Contacts that are not listed are not used.
Table 3
Auxiliary Attachment ECM Connector (Switch Panel) (1)Connector C302
Contact Descriptions(2)
No. Function
1 CAN J1939 Data Link (+)
2 CAN J1939 Data Link (-)
4 Washer
5 Wiper Int-3
6 Wiper Int-6
7 Wiper Low
8 Fine Swing Switch
9 Quick Coupler Switch
10 A/C Compressor Clutch Solenoid
(1) This ECM is linked to the Machine ECM via the CAN Data Link. All faults of the components attached to the Auxiliary Attachment ECM are reported by the Machine ECM.
(2) Contacts that are not listed are not used.
Table 4
Auxiliary Attachment ECM Connector (Switch Panel) (1)Connector C303
Contact Descriptions(2)
No. Function
1 B+
2 Ground
3 Key Switch
4 Fault Alarm
5 Caution Lamp Relay
6 Quick Coupler Bypass Cut Solenoid
7 Heavy Lift Solenoid
10 B+
12 Travel Alarm
13 Quick Coupler Uncoupling Solenoid
15 Cab Lamp Relay
16 Boom Lamp Relay
19 Alternator R Terminal
20 Quick Coupler Unlock Switch
(1) This ECM is linked to the Machine ECM via the CAN Data Link. All faults of the components attached to the Auxiliary Attachment ECM are reported by the Machine ECM.
(2) Contacts that are not listed are not used.