INTERACTIVE SCHEMATIC

Bookmarks X
*This document is best viewed at a
Options
screen resolution of 1024 X 768.
Features
Cover Page
To set your screen resolution do the following:
Tables RIGHT CLICK on the DESKTOP.
Component Select PROPERTIES.
Connector
CLICK the SETTINGS TAB.
Schematic
Machine Views
MOVE THE SLIDER under SCREEN RESOLUTION
Chassis View until it shows 1024 X 768.
Cab View CLICK OK to apply the resolution.
Engine View
*Due to different monitor sizes and PDF reader preferences
The Bookmarks panel will allow you to there may be some variance in linked schematic locations
quickly navigate to points of interest.

Click here to save a copy of

EC-C2 E-C60 this interactive schematic
EC-C3
to your desktop
E-C61

VIEW ALL CALLOUTS

EC-C1
When only one callout is showing on a
machine view, clicking on this button will
Click on any text that is BLUE and make all of the callouts visible. This
underlined. These are hyperlinks button is located in the top right corner
that can be used to navigate the of every machine view page.
schematic and machine views.

ELECTRICAL SYMBOLS BASIC HYDRAULIC

HOTKEYS (Keyboard Shortcuts) COMPONENT SYMBOLS
T

Pressure Temperature Level Flow

Pump

FUNCTION KEYS
Switch Switch Switch Switch Circuit Breaker
or Motor Variability

Click here to view the

Zoom In “CTRL” / “+” Schematic Symbols
Fluid
Conditioner
Spring
(Adjustable)

Zoom Out “CTRL” / “-” and Definitions page

Fit to Page “CTRL” / “0” (zero)

Hand Tool “SPACEBAR” (hold down)
Find “CTRL” / “F”
SCHEMATIC SYMBOLS AND DEFINITIONS

VALVES INTERNAL PASSAGEWAYS PUMPS BASIC HYDRAULIC

ENVELOPES FLOW IN ONE
DIRECTION
FLOW ALLOWED IN
EITHER DIRECTION
PARALLEL
FLOW
CROSS
FLOW
FIXED DISPLACEMENT
COMPONENT SYMBOLS

One Position Two Position Three Position Unidirectional Bidirectional Pump

Infinite Two Three Variability
Positioning Position Position or Motor
PORTS VARIABLE DISPLACEMENT
NON- COMPENSATED

CYLINDERS Fluid Spring

(Adjustable)
Two-way Three-Way Four-Way Conditioner
Unidirectional Bidirectional
CONTROL
AB AB
Single Acting Double Acting
MOTORS Pressure
FIXED DISPLACEMENT Spring
P T P T Compensation
Normal Position Shifted Position Infinite Position

CHECK
Control
ACCUMULATORS Unidirectional Bidirectional
Valves
Line Restriction
(Variable)
VARIABLE DISPLACEMENT
Basic Spring Shuttle NON- COMPENSATED
Pilot
Symbol Loaded Line Restriction
Controlled Spring Loaded Gas Charged Restriction
(Fixed)

Unidirectional Bidirectional

MAIN AUX.
Line Restriction
PILOT CONTROL 2-Section
RELEASED PRESSURE ROTATING SHAFTS Variable and Pressure
Compensated
Pump

Unidirectional Bidirectional
External Return Internal Return
Attachment Pump: Variable and
REMOTE SUPPLY PRESSURE Pressure Compensated

Internal Hydraulic Pneumatic

Simplified Complete Supply Pressure Energy Triangles

COMBINATION CONTROLS
LINES MEASUREMENT

Solenoid Solenoid Solenoid Solenoid and Servo Thermal Detent Crossing Joining
or Manual and Pilot Pilot or Manual Pressure Temperature Flow

MANUAL CONTROL FLUID STORAGE RESERVOIRS

Push-pull Lever Manual Shutoff General Manual Push Button Pedal Spring Vented Pressurized Return Above Fluid Level Return Below Fluid Level

HYDRAULIC SYMBOLS - ELECTRICAL ELECTRICAL SYMBOLS

G
M T

Pressure Temperature Level Flow

Transducer Transducer Generator Electric Pressure Pressure Switch Temperature Electrical
Switch Switch Switch Switch Circuit Breaker
(Fluid) (Gas / Air) Motor Switch (Adjustable) Switch Wire

BASIC ELECTRICAL COMPONENT SYMBOLS HARNESS AND WIRE SYMBOLS

Wire, Cable, or Harness Assembly Identification:
Fuse: A component in an electrical circuit that will open the circuit if too much current flows through it. Includes Harness Identification Letters and Harness
Connector Serialization Codes (see sample).
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.
AG-C4 L-C12
Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.). 111-7898 3E-5179
No circle indicates that the wire cannot be disconnected from the component. Part Number: for 1
Connector Plug
Ground (Wired): This indicates that the component is connected to a grounded wire. 2
The grounded wire is fastened to the machine.
Plug Receptacle
Pin or Socket Number
Ground (Case): This indicates that the component does not have a wire connected to ground.
It is grounded by being fastened to the machine. Harness Identification Letter(s): (A, B, C, AA, AB, AC, ...)

Reed Switch: A switch whose contacts are controlled by a magnet. A magnet closes the contacts of Harness Connector Serialization Code: The "C" stands for
"Connector" and the number indicates which connector in the
a normally open reed switch; it opens the contacts of a normally closed reed switch.
harness (C1, C2, C3, ...)
L-C12
Sender: A component that is used with a temperature or pressure gauge. 3E-5179
The sender measures the temperature or pressure.
T Its resistance changes to give an indication to the gauge of the temperature or pressure. 5A
Component
Relay (Magnetic Switch): A relay is an electrical component that is activated by electricity. Fuse (5 Amps) 9X-1123 Part Number
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. 325-AG135 PK-14
Harness identification code:
This example indicates wire group 325, Wire Gauge
Solenoid: A solenoid is an electrical component that is activated by electricity. wire 135 in harness "AG". Wire Color
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. 1 Deutsch connector: Typical representation
of a Deutsch connector. The plug contains all
2 sockets and the receptacle contains all pins.
Magnetic Latch Solenoid: 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 1 Sure-Seal connector: Typical representation
when current flows through them. It also has an internal switch that places of a Sure-Seal connector. The plug and receptacle
2 contain both pins and sockets.
the latch coil circuit open at the time the coil latches.
 UENR2442-02
July 2015

C15 Petroleum Engine

Electrical System
SWE1-UP
HAZ1-UP

© 2015 Caterpillar, All Rights Reserved Printed in U.S.A.

SPECIFICATIONS AND RELATED MANUALS

Related Electrical Service Manuals

Title Form Number
Specifications: KENR9371
SysOp/T&A: KENR9372
Troubleshooting: UENR0522
 8 7 6 5 4 3 2 1

EJ-C2
7E6513
ECM AIR COOLED EG EG-C1 EJ-C2 T858-EJ13 GY-16-NW 1
274-1955 2645732 T957-EJ1 PU-16-NW 2 INJECTOR 1
7E6513 ECM AIR COOLED EN-C1
1
T858-EJ13 GY-16-NW 1 274-1955 2645732
2
3 T957-EJ1 PU-16-NW 2
INJECTOR 1 1 TO INTERNAL HARNESS
2 EJ-C1 (04B5) EJ-C3
4 7E6513
3
5
4 T858-EJ14 GY-16-NW
6 TO INTERNAL HARNESS EJ-C3 INJ 2
1
5 T958-EJ2 YL-16-NW 2 INJECTOR 2
7 EJ-C1 (04B5) 7E6513
AIR SHUTOFF SOLENOID 6 G971-EN4 WH EN-C16 EJ-C1
8 T858-EJ14 GY-16-NW 1 7 2908858
9 INJECTOR 2 2698225 T858-EJ7 GY-16-NW T858-EJ13 GY-16-NW
T958-EJ2 YL-16-NW 2 8 EJ-C4
F F
10 EJ-C1 T957-EN20 BK-16-XLPE 1 T957-EJ1 PU-16-NW T858-EJ14 GY-16-NW
EG-C16 9 7E6513
11
1552252 2908858 T958-EN19 BK-16-XLPE 2 T958-EJ2 YL-16-NW
T858-EJ7 GY-16-NW T858-EJ13 GY-16-NW 10
12 EJ-C4 11 T959-EN17 BK-16-XLPE 3 T959-EJ3 BR-16-NW T859-EJ8 WH-16-NW T859-EJ15 WH-16-NW T859-EJ16 WH-16-NW 1
T957-EG120 PU-16-XLPE 1 T957-EJ1 PU-16-NW T858-EJ14 GY-16-NW INJ 3 INJECTOR 3
COOLANT TEMPERATURE 13 995-EG111 BU-18-GXL 7E6513 12 T960-EN24 BK-16-XLPE 4 T960-EJ4 BU-16-NW T859-EJ16 WH-16-NW T959-EJ3 BR-16-NW 2
14 T958-EG119 YL-16-XLPE 2 T958-EJ2 YL-16-NW
COOLANT TEMPERATURE 13 995-EN11 WH T961-EN16 BK-16-XLPE 5 T961-EJ5 GN-16-NW
INTAKE MANIFOLD PRESSURE SENSOR 15 R746-EG118 PK-18-GXL T959-EG117 BR-16-XLPE 3 T959-EJ3 BR-16-NW T859-EJ8 WH-16-NW T859-EJ15 WH-16-NW T859-EJ16 WH-16-NW 1
INJECTOR 3 14 T962-EN25 BK-16-XLPE 6 T962-EJ6 WH-16-NW T860-EJ9 OR-16-NW T860-EJ18 OR-16-NW
16 T960-EG124 BU-16-XLPE 4 T960-EJ4 BU-16-NW T859-EJ16 WH-16-NW T959-EJ3 BR-16-NW 2
EJ-C5
INTAKE MANIFOLD PRESSURE SENSOR 15 R746-EN18 WH T858-EN15 BK-16-XLPE 7 T858-EJ7 GY-16-NW T860-EJ17 OR-16-NW
ANALOG RETURN 17 G829-EG2 GN-18-GXL T961-EG116 GN-16-XLPE 5 T961-EJ5 GN-16-NW 7E6513
16 T859-EN21 BK-16-XLPE 8 T859-EJ8 WH-16-NW
18 T962-EG125 WH-16-XLPE 6 T962-EJ6 WH-16-NW T860-EJ9 OR-16-NW T860-EJ18 OR-16-NW
EJ-C5 ANALOG RETURN 17 G829-EN2 GN-18-GXL T860-EN14 BK-16-XLPE 9 T860-EJ9 OR-16-NW T957-EJ1 PU-16-NW T859-EJ15 WH-16-NW 1
19 T858-EG115 GY-16-XLPE 7 T858-EJ7 GY-16-NW T860-EJ17 OR-16-NW INJ 4 INJECTOR 4
7E6513 18 10 T958-EJ2 YL-16-NW T960-EJ4 BU-16-NW 2
20 T859-EG121 WH-16-XLPE 8 T859-EJ8 WH-16-NW 19 11 T959-EJ3 BR-16-NW
21 T860-EG114 OR-16-XLPE 9 T860-EJ9 OR-16-NW T957-EJ1 PU-16-NW T859-EJ15 WH-16-NW 1
20
22 INJECTOR 4 12 T960-EJ4 BU-16-NW
10 T958-EJ2 YL-16-NW T960-EJ4 BU-16-NW 2
21 EJ-C6
23 T961-EJ5 GN-16-NW
11 T959-EJ3 BR-16-NW 22 7E6513
24 T962-EJ6 WH-16-NW
12 T960-EJ4 BU-16-NW 23
ENGINE SPEED SENSOR #1 (-) (CRANK) 25 E963-EG123 BK-18-GXL EJ-C6 T860-EJ17 OR-16-NW 1
T961-EJ5 GN-16-NW INJ 5 24 EN-C2 INJECTOR 5
TDC SERVICE PROBE (+) 26 G856-EG108 WH-18-GXL 7E6513 N1 T961-EJ5 GN-16-NW 2
27
T962-EJ6 WH-16-NW ENGINE SPEED SENSOR #1 (-) (CRANK) 25 E963-EN23 WH
CBL-E 3313582
T860-EJ17 OR-16-NW 1 TDC SERVICE PROBE (+) 26 G856-EN8 WH
ENGINE OIL PRESSURE SENSOR 28 994-EG110 GY-18-GXL EG-C2 INJECTOR 5 G856-EN8 WH 1 TDC
T961-EJ5 GN-16-NW 2 27
29 G857-EN9 BK EJ-C7
1552269 ENGINE OIL PRESSURE SENSOR 28 994-EN10 WH 2 PROBE
TEMPERATURE SENSOR COMMON 30 G833-EG7 PK-18-GXL 7E6513
G856-EG108 WH-18-GXL 1 TDC 29
31 T860-EJ18 OR-16-NW 1
G857-EG109 YL-18-GXL EJ-C7 TEMPERATURE SENSOR COMMON 30 G833-EN7 PK-18-GXL
32 2 PROBE INJ 6
T962-EJ6 WH-16-NW 2 INJECTOR 6
7E6513 31
33 2 EN-C3
32
T860-EJ18 OR-16-NW 1 -EN
CBL
34 2407878
INJECTOR 6 33
ENGINE SPEED SENSOR #1 (+) (CRANK) 35 E964-EG122 WH-18-GXL T962-EJ6 WH-16-NW 2
EG-C3 34 G828-EN31 RD 1 +5 VOLTS
TDC SERVICE PROBE (-) 36 G857-EG109 YL-18-GXL ENGINE SPEED SENSOR #1 (+) (CRANK) ATM PRESS
2304013 35 E964-EN22 BK G829-EN32 BK 2 GROUND
37 TDC SERVICE PROBE (-) 274-6717
36 G857-EN9 BK R747-EN5 WH 3 SIGNAL
38 G828-EG131 WH-18-GXL 1 +5 VOLTS
ATM PRESS EG 37 994-EN10 WH
39 G829-EG132 GN-18-GXL 2 GROUND 38
FUEL PRESSURE SENSOR 40 C991-EG106 PK-18-GXL 274-6717 995-EN11 WH
R747-EG105 GY-18-GXL 3 SIGNAL 39
41 C967-EN13 WH
994-EG110 GY-18-GXL FUEL PRESSURE SENSOR 40 C991-EN6 WH EN-C5
C991-EN6 WH 3
-EN
42
995-EG111 BU-18-GXL 41
43 E963-EN23 WH CBL 2407874
C967-EG113 BU-18-GXL 42
44 EG-C5 E964-EN22 BK C967-EN13 WH 1 SIGNAL INTAKE MANF TEMP
C991-EG106 PK-18-GXL 43
45 2304011 E965-EN27 WH G833-EN38 BK 2 GROUND 256-6453
E963-EG123 BK-18-GXL 44
ENGINE SPEED SENSOR #2 (+) (CAM) 46 E966-EG126 YL-18-GXL E966-EN26 BK
E964-EG122 WH-18-GXL C967-EG113 BU-18-GXL 1 SIGNAL INTAKE MANF TEMP EG 45
ENGINE SPEED SENSOR #2 (-) (CAM) 47 E965-EG127 BU-18-GXL ENGINE SPEED SENSOR #2 (+) (CAM) F421-EN12 WH
E965-EG127 BU-18-GXL G833-EG138 PK-18-GXL 2 GROUND 256-6453 46 E966-EN26 BK
48
E E
ENGINE SPEED SENSOR #2 (-) (CAM) 47 E965-EN27 WH
49 E966-EG126 YL-18-GXL EN-C6
48 G828-EN1 WH-18-GXL G828-EN28 RD 5
F421-EG112 YL-18-GXL -EN
CBL
50 3313582
49 G828-EN29 RD
51
EG-C6 50 G828-EN30 RD E963-EN23 WH 1 BK-18 CRANK SP TMG (A)
52 G828-EG1 WH-18-GXL G828-EG128 WH-18-GXL 51
1552269 G828-EN31 RD E964-EN22 BK 2 WH-18 191-8303
53 G828-EG129 WH-18-GXL 52
54 G828-EG130 WH-18-GXL E963-EG123 BK-18-GXL 1 BK-18 CRANK SP TMG (A) EG 53
55 191-8303 G829-EN2 GN-18-GXL G829-EN32 BK
G828-EG131 WH-18-GXL E964-EG122 WH-18-GXL 2 WH-18 54
INTAKE MANIFOLD TEMP 56 C967-EG113 BU-18-GXL G829-EN33 BK
55 EN-C8
ATMOSPHERIC PRESSURE SENSOR G829-EN34 BK 4
57 R747-EG105 GY-18-GXL G829-EG2 GN-18-GXL G829-EG132 GN-18-GXL INTAKE MANIFOLD TEMP 56 C967-EN13 WH -EN
58 G829-EN35 BK CBL 2407874
G829-EG133 GN-18-GXL ATMOSPHERIC PRESSURE SENSOR 57 R747-EN5 WH
59 EG-C8 E965-EN27 WH 1 BK-18 CAM SP TMG (B)
G829-EG134 GN-18-GXL 58
60 2304011 G833-EN7 PK-18-GXL G833-EN36 BK E966-EN26 BK 2 WH-18 372-5008
G829-EG135 GN-18-GXL 59
61 G833-EN37 BK
E965-EG127 BU-18-GXL 1 BK-18 CAM SP TMG (B) EG 60
FUEL TEMP 62 F421-EG112 YL-18-GXL 61 G833-EN38 BK
63 G833-EG7 PK-18-GXL G833-EG136 PK-18-GXL E966-EG126 YL-18-GXL 2 WH-18 279-9829
G833-EG137 PK-18-GXL FUEL TEMP 62 F421-EN12 WH
64 G856-EN8 WH 6 EN-C7
G833-EG138 PK-18-GXL 63
-EN
65
64 G857-EN9 BK CBL 2407879
66
EG-C7 65 G969-EN39 BK G828-EN30 RD 1 +5 VOLTS INTAKE MANF PRESS
67 G856-EG108 WH-18-GXL
2370227 66 G971-EN4 WH G829-EN34 BK 2 GROUND 274-6718
68 G857-EG109 YL-18-GXL 67 R746-EN18 WH R746-EN18 WH 3 SIGNAL
69 R746-EG118 PK-18-GXL G828-EG130 WH-18-GXL 1 +5 VOLTS
68
INTAKE MANF PRESS SNSR (IMP) EG R747-EN5 WH
70 R747-EG105 GY-18-GXL G829-EG134 GN-18-GXL 2 GROUND
69
71 274-6718 T858-EN15 BK-16-XLPE
T858-EG115 GY-16-XLPE R746-EG118 PK-18-GXL 3 SIGNAL
70
PRESSURE SENSOR +5V 72 G828-EG1 WH-18-GXL T859-EN21 BK-16-XLPE
T859-EG121 WH-16-XLPE 71 EN-C9
T860-EN14 BK-16-XLPE 7
73 T860-EG114 OR-16-XLPE PRESSURE SENSOR +5V 72 G828-EN1 WH-18-GXL -EN
74 T957-EG120 PU-16-XLPE
T957-EN20 BK-16-XLPE CBL 2407879
73
75 EG-C9 T958-EN19 BK-16-XLPE G828-EN29 RD 1 +5 VOLTS OIL PRESS
T958-EG119 YL-16-XLPE 74
76 2370227 T959-EN17 BK-16-XLPE G829-EN33 BK 2 GROUND 274-6719
T959-EG117 BR-16-XLPE 75
77 T960-EN24 BK-16-XLPE 994-EN10 WH 3 SIGNAL
T960-EG124 BU-16-XLPE G828-EG129 WH-18-GXL 1 +5 VOLTS 76
78 OIL PRESS EG 77 T961-EN16 BK-16-XLPE
79 T961-EG116 GN-16-XLPE G829-EG133 GN-18-GXL 2 GROUND
274-6719 78 T962-EN25 BK-16-XLPE
80 T962-EG125 WH-16-XLPE 994-EG110 GY-18-GXL 3 SIGNAL
AIR SHUTOFF SOLENOID RETURN 79 G969-EN39 BK
81 8 EN-C10
-EN
80
CBL
82 2407874
81
83
EG-C10 82 995-EN11 WH 1 SIGNAL
COOLANT TEMP
84
2304011 83 G833-EN36 BK 2 GROUND
85 256-6453
84
86 995-EG111 BU-18-GXL 1 SIGNAL COOLANT TEMP EG 85
D 87
88
G833-EG136 PK-18-GXL 2 GROUND 256-6453 86
87
D
89 N9 EN-C11
90
88
CB L-E 2407879
89
91 EG-C11 90
G828-EN28 RD 1 +5 VOLTS FUEL PRESS
92 2370227 91 G829-EN35 BK 2 GROUND 274-6719
93 C991-EN6 WH 3 SIGNAL
G828-EG128 WH-18-GXL 1 +5 VOLTS 92
94 FUEL PRESS EG 93
95 G829-EG135 GN-18-GXL 2 GROUND
274-6719 94
96 C991-EG106 PK-18-GXL 3 SIGNAL
95
97 10 EN-C12
-EN
96
CBL
98 2407874
97
INJECTOR 5-6 HIGH SIDE 99 T860-EG114 OR-16-XLPE
EG-C12 98 F421-EN12 WH 1 SIGNAL FUEL TEMP
100
2304011 INJECTOR 5-6 HIGH SIDE 99 T860-EN14 BK-16-XLPE G833-EN37 BK 2 GROUND 256-6453
101
100
102 F421-EG112 YL-18-GXL 1 SIGNAL FUEL TEMP EG 101
103 G833-EG137 PK-18-GXL 2 GROUND 256-6453 102
INJECTOR 1-2 HIGH SIDE 104 T858-EG115 GY-16-XLPE 103 EN-C13 ES-C1 ES-C2
INJECTOR 6 RETURN 11
105 T962-EG125 WH-16-XLPE INJECTOR 1-2 HIGH SIDE 104 T858-EN15 BK-16-XLPE -EN
INJECTOR 3 RETURN 106 T959-EG117 BR-16-XLPE INJECTOR 6 RETURN
CBL 7N6702 4P3857 3E6488
INJECTOR 5 RETURN
105 T962-EN25 BK-16-XLPE
107 T961-EG116 GN-16-XLPE INJECTOR 3 RETURN G971-EN4 WH A G971-ES1 BK-18-XLPE A AIR SHUTOFF SOL
INJECTOR 4 RETURN
106 T959-EN17 BK-16-XLPE
108 T960-EG124 BU-16-XLPE INJECTOR 5 RETURN G969-EN39 BK B G969-ES1 BK-18-XLPE B 373-6142
107 T961-EN16 BK-16-XLPE
109 INJECTOR 4 RETURN 108 T960-EN24 BK-16-XLPE
110
109
111
110
112
111
113
(Dimensions: 39 inches x 28 inches)

112
114
113
INJECTOR 3-4 HIGH SIDE 115 T859-EG121 WH-16-XLPE 114
INJECTOR 1 RETURN 116 T957-EG120 PU-16-XLPE INJECTOR 3-4 HIGH SIDE 115 T859-EN21 BK-16-XLPE
117 INJECTOR 1 RETURN
INJECTOR 2 RETURN
116 T957-EN20 BK-16-XLPE
118 T958-EG119 YL-16-XLPE 117
119 INJECTOR 2 RETURN 118 T958-EN19 BK-16-XLPE
120
UENR2442-02

119
120

C ENGINE (EG) HARNESS 369-3259 ENGINE (EN) HARNESS 367-9757 C

WITHOUT AIR SHUTOFF WITH AIR SHUTOFF

1 ER-C4 ER-C7 EY-C1 EY-C2

-ER
CBL 2407878 L 2813121 2813121 2698222
ECM AIR COOLED J1 ER-C1 167-ER60 RD 1 1 167-EY1 RD A BR-18 VS SYMBOL DESCRIPTION
AUX COOL LVL
274-1955 1607689 A274-ER61 BK 2 2 A274-EY2 BK B WH-18 GROUND
331-7352
1 E452-ER51 WH 3 3 E452-EY3 WH C GN-18 ALARM
CIRCUIT CONNECTED
ANALOG SENSOR POWER (+5V) 2 125-ER29 BK-18-XLPE
ANALOG SENSOR RETURN 3 T993-ER30 BK-18-XLPE 2 ER-C3 ER-C6 NA-C1 NA-C2 ABBREV COLOR
-ER
DIGITAL SENSOR POWER (+8V) 4 167-ER23 BK-18-XLPE CBL 2407878 L 2813121 2813121 2407878 L CIRCUIT NOT CONNECTED
RD RED
DIGITAL SENSOR RETURN 5 A274-ER24 BK-18-XLPE 120-ER6 BK-18-XLPE 125-ER62 RD 1 1 125-NA1 RD 1 +5 VOLTS
AUX PRESS SNSR
MAINTENANCE CLEAR SWITCH 6 F426-ER27 BK-18-XLPE T993-ER63 BK 2 2 T993-NA2 BK 2 GROUND WH WHITE ELECTRICAL CONNECTION TO
320-3064 MACHINE STRUCTURE
TORQUE LIMIT SWITCH 7 M909-ER17 BK-18-XLPE 125-ER29 BK-18-XLPE 125-ER62 RD G469-ER48 WH 3 3 G469-NA3 WH 3 SIGNAL OR ORANGE
CAT DATA LINK (+) 8 893-ER3 BK-18-XLPE 125-ER71 BK-18-XLPE INTERNAL ELECTRICAL CONNECTION
CAT DATA LINK (-) 9 892-ER4 BK-18-XLPE YL YELLOW
TO SURFACE OF COMPONENT
ETHER START VALVE SOLENOID / RELAY 10 382-ER37 BK-16-XLPE ER-C2 ER-C5 EX-C1 EX-C2 PK PINK
AIR SHUTOFF SOLENOID 11 G971-ER19 BK-16-XLPE
150-ER1 BK-14-XLPE ER3
-
150-ER16 BK-14-XLPE CBL 2813115 L 2818802 2813118 2813115 BK BLACK CONNECTOR
12
150-ER46 BK-14-XLPE G488-ER26 WH 1 1 G488-EX1 WH 1 BK-18 SIGNAL AUX TEMP SNSR GY GRAY
13
150-ER47 BK-14-XLPE T993-ER64 BK 2 2 F424-EX2 BK 2 BK-18 GROUND 339-8822
14 PU PURPLE H#
30 Page,

CIRCUIT GROUPING DESIGNATION

AUXILIARY PRESSURE SENSOR 15 G469-ER48 WH BR BROWN
AUXILIARY TEMPERATURE SENSOR 16 G488-ER26 WH 167-ER23 BK-18-XLPE 167-ER60 RD 120-ER6 BK-18-XLPE
17 167-ER65 BK-18-XLPE 150-ER1 BK-14-XLPE GN GREEN ATCH WIRE, CABLE, COMPONENT
18 150-ER16 BK-14-XLPE BU BLUE
19 229-ER10 BK-14-XLPE 150-ER46 BK-14-XLPE
20 229-ER57 BK-14-XLPE 150-ER47 BK-14-XLPE SPLICE
21 229-ER58 BK-14-XLPE 229-ER10 BK-14-XLPE
GOVERNOR MODE SWITCH FOR CX 22 A742-ER9 BK-18-XLPE BLADE, SPADE, RING OR SCREW
229-ER59 BK-14-XLPE 229-ER57 BK-14-XLPE
RETARDER SOLENOID LOW/HIGH 23 E716-ER49 BK-18-XLPE TERMINAL
B TIMING CAL (+) 24 R723-ER69 BK-18-XLPE
381-ER44 BK-18-XLPE
382-ER37 BK-16-XLPE
229-ER58 BK-14-XLPE
229-ER59 BK-14-XLPE
INCENDIARY
CIRCUITS B
TIMING CAL (-) 25 R724-ER70 BK-18-XLPE 387-ER55 BK-18-XLPE 382-ER37 BK-16-XLPE
26
892-ER4 BK-18-XLPE F404-ER39 BK-18-XLPE
27
893-ER3 BK-18-XLPE F420-ER40 BK-18-XLPE
DIAGNOSTIC LAMP 28 F404-ER39 BK-18-XLPE
F424-ER28 BK-18-XLPE
WARNING LAMP 29 F420-ER40 BK-18-XLPE
MAINTENANCE OVERDUE LAMP 30 F424-ER28 BK-18-XLPE A274-ER24 BK-18-XLPE A274-ER61 BK G969-ER20 BK-14-XLPE
RETARDER LAMP (JAKE & EXHAUST) 31 T936-ER18 BK-18-XLPE A274-ER66 BK-18-XLPE G971-ER19 BK-16-XLPE
32 T936-ER18 BK-18-XLPE
33 CABLE NAME CABLE P/N
J1939 DATA LINK (-) 34 K990-ER5 BK-18-XLPE A307-ER25 BK-18-XLPE
CBL-ER1 358-8393
35 A742-ER9 BK-18-XLPE TO BE TERMINATED BY CUSTOMER CBL-ER2 358-8393
(+) BATTERY
36 E452-ER51 WH
CBL-ER3 358-8389 (+) BATTERY SWITCHED
37 E716-ER49 BK-18-XLPE
38 E717-ER50 BK-18-XLPE 125-ER71 BK-18-XLPE
39 F404-ER39 BK-18-XLPE 167-ER65 BK-18-XLPE (-) BATTERY / SENSOR RETURN
MEUI RETARDER SOLENOID MED/HI & HEUI EXHAUST BRAKE ENABLE 40 E717-ER50 BK-18-XLPE F420-ER40 BK-18-XLPE 381-ER44 BK-18-XLPE
PTO INTERRUPT SWITCH 41 M904-ER34 BK-18-XLPE F424-ER28 BK-18-XLPE 387-ER55 BK-18-XLPE SENSOR / ACTUATOR SUPPLY
42
F426-ER27 BK-18-XLPE 892-ER4 BK-18-XLPE
43 SIGNAL TO ECM
F716-ER42 BK-18-XLPE 893-ER3 BK-18-XLPE
REMOTE SHUTDOWN SWITCH 44 F716-ER42 BK-18-XLPE CONTROL (POSITIVE) FROM ECM
G469-ER48 WH A274-ER66 BK-18-XLPE
INTERMEDIATE SPEED SWITCH 45 G968-ER43 BK-18-XLPE CONTROL (RETURN) FROM ECM
G488-ER26 WH A307-ER25 BK-18-XLPE
AIR SHUTOFF SWITCH 46 H401-ER68 BK-18-XLPE
47 G955-ER45 BK-18-XLPE A742-ER9 BK-18-XLPE CAT DATA LINK
BATTERY (+) UNSWITCHED 48 150-ER16 BK-14-XLPE G967-ER54 BK-18-XLPE E716-ER49 BK-18-XLPE NON-INCENDIARY
COOLANT LEVEL SENSOR 49 E452-ER51 WH G968-ER43 BK-18-XLPE E717-ER50 BK-18-XLPE CIRCUITS J1939 DATA LINK
J1939 DATA LINK (+) 50 K900-ER2 BK-18-XLPE G969-ER20 BK-14-XLPE F426-ER27 BK-18-XLPE
51 G971-ER19 BK-16-XLPE F716-ER42 BK-18-XLPE HIGHWAYS
BATTERY (+) UNSWITCHED 52 150-ER46 BK-14-XLPE H401-ER68 BK-18-XLPE G955-ER45 BK-18-XLPE
BATTERY (+) UNSWITCHED 53 150-ER47 BK-14-XLPE K900-ER2 BK-18-XLPE G967-ER54 BK-18-XLPE
OVERSPEED VERIFY SWITCH 54 387-ER55 BK-18-XLPE K990-ER5 BK-18-XLPE G968-ER43 BK-18-XLPE
BATTERY (+) UNSWITCHED 55 150-ER1 BK-14-XLPE M904-ER34 BK-18-XLPE H401-ER68 BK-18-XLPE
PTO ENABLE SWITCH 56 381-ER44 BK-18-XLPE
57
M909-ER17 BK-18-XLPE K900-ER2 BK-18-XLPE HARNESSES
R723-ER69 BK-18-XLPE K990-ER5 BK-18-XLPE
PTO RAMP UP / SET SWITCH 58 G955-ER45 BK-18-XLPE R724-ER70 BK-18-XLPE M904-ER34 BK-18-XLPE CHG
DESIGNATION DESCRIPTION APPLICATION PART NUMBER
59
T936-ER18 BK-18-XLPE M909-ER17 BK-18-XLPE LVL
PTO RAMP DOWN / RESUME SWITCH 60 G967-ER54 BK-18-XLPE EG STANDARD REMAC PETRO ENGINE HARNESS REMAC 369-3259 01
R723-ER69 BK-18-XLPE
BATTERY (-) 61 229-ER59 BK-14-XLPE
A BATTERY (-)
62
63 229-ER57 BK-14-XLPE T993-ER30 BK-18-XLPE
T993-ER63 BK
T993-ER64 BK
R724-ER70 BK-18-XLPE
T993-ER67 BK-18-XLPE
EJ INTERNAL ENGINE HARNESS ATEX SCAC,
REMAC
343-9866 01
A
64 T993-ER67 BK-18-XLPE
EN ATEX SCAC MAIN ENGINE HARNESS ATEX SCAC 367-9757 01
BATTERY (-) 65 229-ER58 BK-14-XLPE
THROTTLE POSITION SENSOR #1 66 A307-ER25 BK-18-XLPE ER J1 CUSTOMER HARNESS ATEX SCAC 461-6552 00
ASO SOLENOID COMMON 67 G969-ER20 BK-14-XLPE ES AIR SHUTOFF HARNESS ATEX SCAC 373-4679 01
68
EX 2 CONDUCTOR 6M JUMPER HARNESS KIT 364-7963 01
BATTERY (-) 69 229-ER10 BK-14-XLPE
KEYSWITCH INPUT 70 120-ER6 BK-18-XLPE EY, NA 3 CONDUCTOR 6M JUMPER HARNESS KIT 364-7964 02

THIS SCHEMATIC IS FOR THE C15 PETROLEUM ENGINES ELECTRICAL SYSTEM

MEDIA NUMBER: UENR2442-02
CUSTOMER (ER) HARNESS 367-9759 SCHEMATIC PART NUMBER: 354-0911, CHANGE: 06, VERSION: -
Components are shown installed on a fully operable engine with the engine off.
Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.

8 7 6 5 4 3 2 1
LEFT SIDE VIEW
AIR SHUTOFF
HARNESS CONNECTOR VIEW ALL CALLOUTS
ES-C1
INTAKE MANIFOLD
TEMPERATURE SENSOR
CONNECTOR
EN-C5 / EG-C5 INTERNAL INJECTOR
HARNESS CONNECTOR
EN-C16 / EG-C16

INTAKE MANIFOLD
PRESSURE SENSOR
CONNECTOR
EN-C7 / EG-C7

ENGINE SPEED/TIMING
SENSOR B (CAMSHAFT)
CONNECTOR
EN-C8 / EG-C8

AIR SHUTOFF
SOLENOID CONNECTOR
ES-C2

FUEL PRESSURE
SENSOR CONNECTOR
EN-C11 / EG-C11 ECM
ENCLOSURE

ENGINE SPEED/TIMING
SENSOR A (CRANKSHAFT)
CONNECTOR
EN-C6 / EG-C6 TIMING CALIBRATION(TC)
(LOCATED BEHIND ALTERNATOR)
FUEL TEMPERATURE PROBE CONNECTOR
SENSOR CONNECTOR EN-C2 / EG-C2
EN-C12 / EG-C12

ATMOSPHERIC PRESSURE OIL PRESSURE

SENSOR CONNECTOR SENSOR CONNECTOR
EN-C3 / EG-C3 EN-C9 / EG-C9
TOP VIEW - INTERNAL INJECTOR HARNESS
VIEW ALL CALLOUTS

INJECTOR 6
INJECTOR 5 CONNECTOR
CONNECTOR EJ-C7
EJ-C6

INJECTOR 3
CONNECTOR
EJ-C4 INJECTOR 4
CONNECTOR
EJ-C5
INJECTOR 1
CONNECTOR
EJ-C2 INJECTOR 2
CONNECTOR
EJ-C3

INJECTOR HARNESS
CONNECTOR
EJ-C1
FRONT VIEW
VIEW ALL CALLOUTS

COOLANT TEMPERATURE
SENSOR CONNECTOR
EN-C10 / EG-C10
ECM ENCLOSURE VIEW
VIEW ALL CALLOUTS

CUSTOMER AUXILIARY
ECM J2 ENGINE ECM J1 CUSTOMER CONNECTIONS
HARNESS CONNECTOR HARNESS CONNECTOR (no specific order, refer to connector
EN-C1 / EG-C1 ER-C1 tag for identification)