M0126897 April 2021
2
CONN 49
5 28
CONN 47 CONN 48
37
38
CONN 28
26 CONN 30
Component Location - Volume 1
56
CONN 1 61
CONN 2 CONN 22 CONN 43 CONN 15 CONN 4
34 10
CONN 3 CONN 7
CONN 38 CONN 39 CONN 37 CONN 34
12 13
57 66
14
CONN 23
CONN 36 CONN 33
15
A
CONN 5
16
Schematic Location H-5
Machine Location 1
Block - Fuse 12V
G-5
2
Block - Fuse 2
G-5
3
Breaker - Brake Retract Motor
G-4
4
Suppressor - Hazard 1
Component Block - Fuse 1
Schematic Location I-11
Machine Location 34
Sensor - Secondary Brake Pedal Position
E-1
35
Sensor - Throttle
E-1
36
E-2
37
Component Sensor - Cab Air Pressure
Breaker - Headlamps
G-4
5
Suppressor - Hazard 2
E-2
38
Control - Cab Air Temperature
G-1
6
Switch - 4 Position Key
E-2
39
Control - MSS A5S4
E-11
7
Switch - Air Conditioner Mode
G-1
40
Display - D6 Gauge
E-2
8
Switch - A-Stop
D-12
41
Display - D6 Information
D-2
9
Switch - Auto MNL
D-12
42 43
Display - Digital Payload (Master)
I-11
10
Switch - Backlight Dimmer
D-1
Fan As - Powered Precleaner
H-1
11
Switch - Berm Lamp
D-1
44
Ground - Cab 1
H-3
12
Switch - Brake Retract
F-1
45
Ground - Cab 2
H-3
13
Switch - Cab - Estop
I-1
46
Ground - Cab 3
H-3
14
Switch - Collision Avoidance Override
E-1
47
Ground - Cab 4
H-3
15
Switch - Column
F-1
48
Ground - Cab 5
H-3
16
Switch - Fog Light
C-1
49
Ground - Cab 6
G-3
17
Switch - Hazard
C-1
50
Horn - Shop
B-1
18
Switch - Headlamps
D-1
51
Keypad - Jog Dial
C-12
19
Switch - Heated Mirror
F-1
52
Lever - Retarder
E-1
20
Switch - Horn
E-1
53
Lever - Transmission Hoist
C-12
21
Switch - Left Door
F-5
54
Motor - Right Window
F-12
22
Switch - Left Map Lamp
G-1
55
Pass Through - Cab
F-4
23
Switch - Left Window
E-4
56
Port - 12V Power 1
B-2
24
Switch - Powered Mirror
E-4
57
Port - 12V Power 2
B-2
25
Switch - Push to Start Key
C-5
58
Port - Rear Power
F-5
26
Switch - Right Door
F-5
59
Port - USB Charge
B-2
27
Switch - Right Map Lamp
G-1
60
Relay - Main Power
G-4
28
Switch - Right Window
E-4
61
Resistor - Left Turn
B-2
29
Switch - Seat Belt
I-11
62
Resistor - Radio CAN Term 1
I-1
30
Switch - Stairway Lamp
C-1
63
Resistor - Radio CAN Term 2
C-2
31
Switch - Throttle Lock/Throttle Backup
D-11
64
Resistor - Right Turn
B-2
32
Switch - Work Lamps/Rear side Lamps
D-1
65
Sensor - 4 Channel Brake Pedal
E-1
33
Motor - Left Window
E-4
66
785 Off-Highway Truck Electrical System R2R1-UP
17 CONN 20 22 59 CONN 54 23 CONN 31 62 CONN 19 CONN 21 CONN 18
42
VIEW OF AREA “A”
CONN 44 CONN 45 54
CONN 6
CONN 40 CONN 55 CONN 41 CONN 35 41
CONN 25 CONN 24
19
21
Volume 1 of 6: Cab
CONN 32
PUBLICATIONS.CAT.COM
CAB - CENTER CONSOLE
CAB - REAR VIEW
Harness And Wire Electrical Schematic Symbols
51
49
63
65
44
48
8
53
20
64
47
Symbols
9 T
Pressure Symbol
Connector Location - Volume 1
CONN 1
Schematic Location J-16
CONN 2
I-16
Connector Number
7
24 43
60
B
CONN 29 CONN 66 CONN 63
CONN 52 CONN 53
55 30
35
CONN 65 CONN 64 CONN 59 CONN 58
CONN 56 CONN 46 CONN 57 CONN 61
39
CONN 42 CONN 60
Connector Number CONN 34 (Ethernet to Minestar)
F-6
CONN 3
I-16
CONN 36 (To Minestar Radio)
F-6
CONN 4
H-16
CONN 37 (Spare Access)
F-6
CONN 5
F-16
CONN 38
F-6
CONN 6
D-16
CONN 39 (VIMS Telemetry Port)
E-6
CONN 7
B-16
CONN 40
E-6
CONN 8
J-14
CONN 41
E-6
CONN 9
I-14
CONN 42
C-6
CONN 10
I-14
CONN 43
B-6
CONN 11
I-14
CONN 44
E-5
CONN 12
I-14
CONN 45
E-5
CONN 13
F-14
CONN 46
B-4
CONN 14
D-14
CONN 47
B-3
CONN 15
I-13
CONN 48
B-3
CONN 16
I-12
CONN 49
B-3
CONN 17
I-12
CONN 50
B-3
CONN 18
I-12
CONN 51
B-3
CONN 19
H-12
CONN 52
G-2
CONN 20
H-12
CONN 53
H-2
CONN 21
H-12
CONN 54
I-3
CONN 22
F-12
CONN 55
I-3
CONN 23
E-12
CONN 56
I-2
CONN 24
B-11
CONN 57
I-2
CONN 25
B-11
CONN 58
I-2
CONN 26
D-11
CONN 59
I-2 E-2, C-5
CONN 27
E-11
CONN 60
CONN 28
E-11
CONN 61
B-2
CONN 29 (Cab Service Port)
F-11
CONN 62
H-1
CONN 30
F-11
CONN 63
H-1
CONN 31
I-11
CONN 64
H-1
CONN 32
J-11
CONN 65
I-1
CONN 33
G-6
CONN 66
J-1
32
33
31
25
58
36
27
50
CONN 27 18 CONN 26
CAB - FRONT VIEW
Flow Symbol
Circuit Breaker Symbol
Fuse: A component in an electrical circuit that will open the circuit if too much current flows through it. Switch (Normally Open): A switch that will close at a specified point (temp, press, etc.). The circle indicates that the component has screw terminals and a wire can be disconnected from it. Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.). No circle indicates that the wire cannot be disconnected from the component. Ground (Wired): This indicates that the component is connected to a grounded wire. The grounded wire is fastened to the machine. Ground (Case): This indicates that the component does not have a wire connected to ground. It is grounded by being fastened to the machine. Reed Switch: A switch whose contacts are controlled by a magnet. A magnet closes the contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch. Sender: A component that is used with a temperature or pressure gauge. The sender measures the temperature or pressure. Its resistance changes to give an indication to the gauge of the temperature or pressure.
T
Relay (Magnetic Switch): A relay is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close the switch part of the relay. Solenoid: A solenoid is an electrical component that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnet can open or close a valve or move a piece of metal that can do work. Magnetic Latch Solenoid: A magnetic latch solenoid is an electrical component that is activated by electricity and held latched by a permanent magnet. It has two coils (latch and unlatch) that make electromagnet when current flows through them. It also has an internal switch that places the latch coil circuit open at the time the coil latches.
Harness and Wire Symbols Wire, Cable, or Harness Assembly Identification: Includes Harness Identification Letters and Harness Connector Serialization Codes (see sample).
The connectors shown in this chart are for harness to harness connectors. Connectors that join a harness to a component are generally located at or near the component. See the Component Location Chart.
Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...)
L-C12 3E-5179
AG-C4 111-7898
L-C12 3E-5179
1
Part Number: for Connector Plug
29
Level Symbol
Symbols and Definitions
Schematic Location G-6
CONN 35
Temperature Symbol
Harness Connector Serialization Code: The "C" stands for "Connector" and the number indicates which connector in the harness (C1, C2, C3, ...).
Part Number: for Connector Receptacle
2
VIEW OF AREA “B” (ROTATED FOR CLARITY)
CONN 17 CONN 16
CONN 62
5A
11
46
52
CAB - HEADLINER
40
6
45
Plug
Receptacle Pin or Socket Number
1 2
Deutsch connector: Typical representation of a Deutsch connector. The plug contains all sockets and the receptacle contains all pins.
1 2
Sure-Seal connector: Typical representation of a Sure-Seal connector. The plug and receptacle contain both pins and sockets.
Fuse (5 Amps)
9X-1123
Component Part Number
325-AG135 PK-14 Harness identification code: This example indicates wire group 325, wire 135 in harness "AG".
Wire Gauge* Wire Color
*Wire gauge is shown in AWG (American Wire Gauge) but could also be shown in metric denoted with mm
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(Dimensions: 56 inches x 35 inches)
4
42 Page,
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M0126897 VOL 1 of 6
CONN 50
CONN 51 CONN 12 CONN 8 CONN 11 CONN 13 CONN 9 CONN 10 CONN 14 1