BOLT 2735754 - Caterpillar

Table 18
Contact Description Of Main Module Connector
844 and 990
No. Function Type Description
7 Sensor 1 PWM/Sw Sensor, Switch Or Sender Input Front Axle Oil Temperature
8 PWM/Switch/Sender 5 Sensor, Switch Or Sender Input Unassigned
9 Input 10 Fuel/Sw Switch Input Fuel Level
10 PWM/Switch/Sender 6 Sensor, Switch Or Sender Input Hydraulic Oil Temperature
11 Switch 7 Switch Input Unassigned
17 Sensor 2 PWM/Sw Sensor, Switch Or Sender Input Rear Axle Oil Temperature
18 Input 9 Fuel/Sw Switch Input Mode 0 Switch
19 Switch 1 Switch Input Unassigned
20 Switch 4 Switch Input Brake Accumulator Pressure
21 Switch 8 Switch Input Unassigned
27 PWM/Switch 4 Sensor or Switch Input Unassigned
28 Sensor 7 Res/PWM/Sw Sensor, Switch Or Sender Input Torque Converter Outlet Oil Temperature
29 Switch 2 Switch Input Parking Brake Pressure Switch
32 Switch 6 Switch Input Transmission Filter Status
37 PWM/Switch 3 Sensor Or Switch Input Unassigned
38 PWM/Switch/Sender 8 Sensor, Switch Or Sender Input Unassigned
39 Switch 3 Switch Input Hydraulic Pilot Pressure Switch
40 Switch 5 Switch Input Primary Steering Pressure
Table 19
Contact Description Of Main Module Connector
844H and 990H
No. Function Type Description
1 + Battery Input - Voltage (Power) 28 VDC Switched
2 Ground Ground 0 VDC
4 Action Alarm Output Alarm Driver
5 Cat Data Link + Input/Output - Data Link Driver/Receiver (+)
7 Sensor 1 PWM/Sw Sensor, Switch Or Sender Input Front Axle Oil Temperature
8 Switch /Sender 10 Switch Or Sender Input Fuel Level
10 PWM/Switch/Sender 6 Sensor, Switch Or Sender Input Hydraulic Oil Temperature
13 Action Lamp Output Lamp Driver
14 Cat Data Link - Input/Output - Data Link Driver/Receiver (-)
15 Display Module Load Output Driver for Gauge Module
17 Sensor 2 PWM/Sw Sensor, Switch Or Sender Input Rear Axle Oil Temperature
18 Switch/Sender 9 Switch Or Sender Input Operator Switch
20 Switch 4 Switch Input Brake Dual Charge Oil Pressure
23 Service Switch Input Scroll Switch (Service Tool)
24 Sensor Power Supply Output +8 VDC
25 Display Module Clock Output Driver for Gauge Sequencing
32 Switch 6 Switch Input Transmission Filter Status
33 Clear Switch Input Clear Switch (Service Tool)
34 Display Module Power Supply Output 9 VDC
35 Display Module Data Input/Output Data for Gauge Module
37 Switch 3 Switch Input Steering Oil Temperature Switch
38 PWM/Switch/Sender Sensor, Switch Or Sender Input Transmission Lube Temperature
40 Switch 5 Switch Input Primary Steering Pressure Switch