3412E-3408E Engine Electrical Schematics

7/25/2019 3412E-3408E Engine Electrical Schematics

1/2

PressureSymbol

T

TemperatureSymbol

LevelSymbol

Harness and Wire S

Symbols

Symbols and Defi

Harness And Wire Electrical

Fuse:A component in an electricalcircuit that wi

through it.

Switch (Normally Open): Aswitch that willclose

circle indicatesthat the component hasscrew ter

Switch (Normally Closed): Aswitch that willope

No circle indicatesthat the wire cannot be disconn

Ground (Wired): Thisindicates that the compon

grounded wire isfastened to the machine.

Ground (Case): Thisindicates that the compon

It isgrounded bybeing fastened to the machine.

Reed Switch:Aswitch whose contactsare contr

contactsof a normallyopen reed switch; it opens

Sender:A component that isused with a temper

measuresthe temperature or pressure. Its resist

the gauge of the temperature or pressure.T

Relay (Magnetic Switch): Arelayis an electrica

It hasa coilthat makes an electromagnet when c

electromagnet can open or close the switch part o

Magnetic Latch Solenoid: Amagnetic latch sol

activated byelectricityand held latched by a perm

that make electromagnet when current flowsthro

the latch coilcircuit open at the time the coil latch

Solenoid:Asolenoid isan electrical component

coilthat makesan electromagnet when current flo

can open or close a valve or move a piece of meta

1

2

AG-C4111-7898

L-C123E-5179

Pin orSocket Number

Part Number: for Connector Plug

Plug Receptacle

1

1

2

2

Sure-Seal connector: Typicalrepresentation

of a Sure-Sealconnect or. The plug and receptaclecontain both pins and sockets.

Deutsch connector: Typicalrepresentation

of a Deutsch connector. The plug contains allsockets and the receptacle contains allpins.

HaThisexample

L-C123E-51

Wire, Cable, o r HarnessAssembly Identification:Includes

HarnessIdentification Letters and

Harness Connector SerializationCodes (see sample).

SENR1026-03November 2011

Printed in U.S.A.

Electrical System

2011 Caterpillar, AllRights Reserved

3408E and 3412E Engines

99C1-UP

80M1-UP

ECMConnector

J2/P2

ECMConnector

J1/P1

ElectronicControl

Module

Machine InterfaceConnector

J3

ElectronicsGround

Stud

Engine CoolantTemperature

Sensor

Caterpillar SuppliedEngine ServiceToolConnector

J60

Intake ManifoldPressure Sensor

Connector J23/P23

Timing Calibration(TC) ProbeConnectorJ26/P26

AtmosphericPressure Sensor

Connector J27/P27

AtmosphericPressureSensor

Injection ActuationPressure Sensor

Connector J45/P45

Primary EngineSpeed/Timing

Sensor ConnectorJ20/P20

Injection ActuationPressure ControlValve Connector

J46/P46

Injectors1 &3

P52

Injectors5 &7

P53

Injectors

9 &11P54

Injectors

6 &8P57

Injectors2 &4

P56

Injectors10 &12

P58

12

18

22

28

34

4 0 39 3 8 3 7 36 3 5

23

19

13

29

7

6 5 4 3 2 1

12

18

22

28

34

4 0 39 3 8 3 7 36 3 5

23

19

13

29

7

6 5 4 3 2 1

1

3

4

2

CONNECTORS

FuelTemperature Sensor

Atmospheric

Pressure Sensor

Timing Calibration(TC) Probe

SecondarySpeed/Timing SensorPrimary

Speed/Timing Sensor

Engine Oil

Pressure Sensor Engine Oil

Temperature Sensor

Injection Actuation

Pressure ControlValve

Injection ActuationPressure Sensor

ECMConnector

J2/P2ECM

ConnectorJ1/P1

Electronic

ControlModule

ElectronicsGround

Stud

Machine InterfaceConnector

J3

Caterpillar SuppliedEngine ServiceToolConnector

J60

Timing Calibration(TC) ProbeConnectorJ26/P26

Engine CoolantTemperature

Sensor

Intake ManifoldPressure Sensor

2 1

CONNECTORS

3-Pin DT Connector

3E-3370ReceptacleAs.

3E-3371Wedge 155-2276Wedge

169-8670PlugAs.

102-8803ReceptacleKit 155-2260PlugKit

Wire Gauge Pin # Socket #

14 9W-0852 9W-0844

16 -18 8T-8729 8T-8730

2-Pin DT Connector

3E-3364ReceptacleAs.

3E-3365Wedge 155-2261Wedge

155-2269PlugAs.

102-8802ReceptacleKit 155-2270PlugKit


14 9W-0852 9W-0844

16 -18 8T-8729 8T-8730

3E-4367Ring

3E-8557Bolt

8T-9834Connector As.9X-3132Seals

9X-1343ReceptacleAs.

40-Pin DRCConnector

DEUTSCHIPD

DRC16-40S

40

39

38

37

36

35

34

33

32

31

10

20

40

30

26

36

166

5 15

25

35

21

11

31

1

10

40

36 6

535

31

1


14 9W-0852 9W-0844

16 - 18 8T-8729 8T-8730

TOP VIEW


14 9W-0852 9W-0844

16 -18 8T-8729 8T-8730

W ire G auge Sock et #

14 8T-8730

16 -18 8T-8730

40-Pin Deutsch Connector

110-6844 Seal

or

9-Pin HD10 Receptacle

8T-8736 Receptacle

A B

C

DE

F

G H

J

1110-6848 Plug As.or110-6847 Plug As.

(Service Replacement)

110-6848 Plug As. - P2

110-6847 Plug As. - P1


14 9W-0852 9W-0844

16 - 18 8T-8729 8T-8730

4-Pin DT Connector

3E-3376 Receptacle As. 3E-3377 Wedge 155-2262 Wedge 155-2272 Plug As.

10 2- 8804 Rec ept acl e K it 155 -2 271 Plu g K it

Event Codes

Engine Control

Event Code Condition

E017 High Eng ine Coo lant Tempera ture Warning

E025 High In let Ai r Tempera tu re Derate

E027 High In le t Ai r Temperatu re Warn ing

E100 LowEngine Oi lPressure Warn ing

E164 High In jecto r Actuation Pressure

E190 Eng ine Overspeed Warn ing

E 2 65 Us er De f in ed S h u td own

E272 In let Ai r Restri ction Warn ing

Failure Mode Identifiers (FMI)F MI No . F ai lu re Des cr ip tio n

0 Data val id but above normaloperationa l range .

1 Data val id but be lownorma loperationa l range .

2 Data erra tic, inte rmitten t, o r inco rrect.

3 Vo l tage above norma lo r shorted h igh .

4 Vo l tage be lownormalo r shorted low.

5 Curren t below norma l o r open circu it.

6 Curren t above norma lo r grounded circu it.

7 Mechan ica lsystem no t responding p roperly.

8 Abnorma l frequency, pu lse wid th, o r pe riod .

9 A bn or ma l up da te .

1 0 A b no r ma l r at e o f ch a ng e.

11 Fa i lu re mode no t iden ti fiable .

1 2 B a d de v ic e o r co mp o ne n t.

1 3 O u t o f c a li b ra t io n.

1 4 P a ra me t er f ai l ur e s.


1 6 P a ra me t er n o t a v a il a bl e .

1 7 M o du l e no t r es p on d in g .

1 8 S e ns o r s u pp l y f a ul t .

1 9 Co nd i ti o n n ot me t .


The FMI is a diagnostic code that indicates what type of failure has occurred.

Component Identifiers (CID)

Module Identifier(MID)Engine Control Module

(MIDNo. 036)CID Component

1 I nj ec to r C yl in de r 1




5 I n je c to r Cy li nd e r 5





1 0 I n je c to r Cyl i nd e r 1 0




4 2 I n je c to r A c tu at i on V a l ve

9 1 T hr ot tl e Sw it ch

100 Eng ine Oi lPressure Sensor

110 Eng ine Coolan t Tempera tu re Sensor

164 In jecto r Actua tion Pressure Contro lVa lve

1 68 S y st e m Vo lt a ge H i gh

172 In take Mani fo ld Ai r Temp Sensor

1 74 F u el T e mp er a tu r e S e n so r

175 Eng ine Oi lTempera ture Sensor

1 90 E n gi n e Sp e ed S e ns o r 2 48 C at D at a Li nk

2 53 P e rs o na l it y M o d ul e

254 Electron ic Con tro lModule

261 Eng ine Timing Ca l ibra tion

2 62 5 V o lt S e ns o r Dc P o we r

2 63 D i gi t al S e ns o r S up p ly

2 64 De ce l T hr o tt l e P o si t io n

266 Crank Wi thou t In jection Input

268 Programmed Paramete r Fau lt

273 Man ifo ld Pressure Sensor

274 Atmospheric Pressure Sensor

275 Righ t Turbo In let Pressure Sensor

277 Timing Ca l ibra tion Sensor

291 Eng ine Coo l ing Fan So leno id

342 Secondary Engine Speed Sensor

544 Eng ine Cool ing Fan Speed Sensor

545 Ether In jection Con tro lRe lay

5 96 I m pl e me n t Co nt r ol

7 99 S er vi ce T oo l

1599 Eng ine Fan Blade Posi tion Pu l lSo leno id

1600 Engine Fan Blade Position Push Solenoid

The CID isa diagnostic code that indicates which circuit is faulty.

The MID is a diagnostic code that indicates which electronic controlmodule

diagnosed the fault.

Related Electrical Service ManualsTitle Form Number

Engine Control: SENR2945-05

7/25/2019 3412E-3408E Engine Electrical Schematics

2/2

SENR1026-03

20Page

,Color2(Dimensions:39inchesx24inches)

Components are shown installed on a fully operable macin neutraland with parking brake set.

Refer to the appropriate Service Manualfor Troubleshoot

THISSCHEMATICISFORTHE3408EA

MEDIANUMBER: SENR1026-03

A

B

C

D

E

23456789

23456789

WIREGROUP COLORDESCRIPTI

(-) BATTERY/ SENSORRETURN

(+) BATTERY

(+) BATTERYSWITCHED

STARTING CIRCUIT

SENSOR/ ACTUATORSUPPLY

SIGNAL PLUSTO ECM

CONTROL PLUSFROM ECM

CONTROL MINUSFROM ECM

CAT DATALINK

J1939 (CAN) DATALINK

ATADATALINK

OTHERCOLOR DESCRIPTION

HIGHWAYS

J52P52

J53P53

J56P56

J57P57

J52P52

J53P53

J56P56

L1

L1

L2

L3

L3

L4 L4

L5

L6

L5L5 L5

L6L6 L6L7

L7

L8

L8 L8

L9

L9

J57P57

J58P58

J54P54

43

2

1

12

34

1

23

4F728-BR

F726-YL 43

21

COOLANT FLOW SWITCH

F703-GY

F701-BRF704-OR

F713-ORF714-PK

E799-BRF700-BU

F702-GNA700-OR

998-BR997-OR

993-BR

F715-PUF716-WH113-OR

F717-YLF718-BU

F719-BRA234-BK

F711-GNF712-GY

E793-BUE794-YL

892-BR893-GN

150-RD-14150-RD-14

F721-GY

F720-GNF706-PU

F707-WH

F705-PKF725-WH

F708-YLF709-BU

F710-BR

F724-PUF723-PK

F724-PU

F723-PK

F703-GY

F701-BR

F704-OR

F713-ORF714-PK

E799-BR

F700-BU

F702-GN

F722-OR

A700-OR

998-BR

997-OR993-BR

F715-PU

F716-WH

113-OR

F717-YL

F718-BU

F719-BR

A234-BKF711-GNF712-GY

E793-BUE794-YL

892-BR893-GN

150-RD-14150-RD-14

F721-GY

F720-GN

F706-PU

F707-WH

F705-PK

F725-WH

F708-YLF709-BU

F710-BR

TIMING CAL CONNECTOR

(2 PIN DT PLUG)

A707-PUF728-BR

A705-BU

CYL HEADSOL 5

CYL HEADSOL 1

CYL SOL

CYL HEADSOL 3

A703-BRF726-YL

IAPCVREF: 100-5632(REF: 9X-8200 FOR

CONNECTOR)

A701-GY

3408E ENGINE INJECTOR SOLENOID CONNECTIONS ONLY

3412E ENGINE INJECTOR SOLENOID CONNECTIONS ONLY

43

21

1

23

4

1

23

4

12

34

F728-BR

F726-YL 4

32

1

A707-PU

F728-BRA705-BU

CYL HEAD

SOL 5

CYL HEAD

SOL 8

CYL HEADSOL 4

CYL HEADSOL 2

CYL HEADSOL 6

CYL HEAD

SOL 1

CYL HEAD

SOL 7

CYL HEAD

SOL 3

A703-BR

F726-YLA701-GY

1

23

4

F730-GY

A711-PUF730-GY

CYL HEAD

SOL 9

CYL HEAD

SOL 12

CYL HEAD

SOL 10

CYL HEAD

SOL 11

A709-OR

F731-OR

A710-GYF731-OR

A712-BR

F729-GN

A706-GYF729-GN

A708-BR

F727-BU

A702-PUF727-BU

A704-GN

F729-GN

A706-GY

F729-GNA708-BR

F727-BU

A702-PUF727-BU

A704-GN

J3/P3 MACHINE

INTERFACE CONNECTOR

1640

2634

3228

382237

1831

125

17

2127

33

11

A708-BRA707-PU

A706-GYA705-BU

A704-GNA703-BR

A702-PUA701-GYINJECTOR SOL 1

INJECTOR SOL 2

INJECTOR SOL 3INJECTOR SOL 4



INJECTOR COMMON 5 & 7



INJECTOR COMMON 2 & 4 F728-BR

F726-YL

F729-GN

F727-BU

ENGINE

CYLINDER HEADGROUND STUD

NOTE: FOR SPECIFIC ECM PIN FUNCTIONAL DESCRIPTIONS,REFER TO THE TROUBLESHOOTING MANUAL FOR YOUR

APPLICATION.

NOTE B: WIRE PAIRS 892-BR & 893-GN, E793-BU & E794-YL ,

711-GN & 712-GY, MUST BE TWISTED AT LEAST 1 TURN PER25MM.

COMPONENT KEY

ATA: AMERICAN TRUCKING ASSOCIATION

ECM: EL ECTRONIC CONTROL MODULE

16

40

263432

2838

2237

1831

125

17

212733

3529

915

2023

2

8

147

1319

24251

34

610

3036

39

11

16

40

26

34

32

28

38

22

37

18

31

12

5

17

21

27

33

35

29

9

15

20

23

2

8

14

7

13

19

24

25

1

3

4

6

10

30

36

39

11

F737-YL

412-BU

F732-PK

E799-BR

E796-GN

A751-YL

E795-YL

E797-WHE798-PK

F700-BU

999-WH

997-OR998-BR

IAPCV RETURN

ENGINE OIL PRESSURE

COOLANT TEMPERTURE

F714-PK

994-GY

F713-OR

A747-GY

A708-BR

A707-PUA706-GY

A705-BUA704-GNA703-BR

A702-PU

A701-GY

A712-BRA711-PU

A710-GYA709-OR

INJECTOR SOL 1

INJECTOR SOL 2

INJECTOR SOL 3INJECTOR SOL 4INJECTOR SOL 5


INJECTOR SOL 8INJECTOR SOL 9INJECTOR SOL 10


A746-PK

SAE J1939 SHIELD GND



INJECTOR COMMON 9 & 11INJECTOR COMMON 10 & 12



(IFEQUIPED) PROPORTIONAL VALVE

(IFEQUIPED) STARTING AID SW OVERRIDE

THROTTLE POSITION(IFEQUIPED) FAN SPEED

ATMOSPHERIC PRESSURE

FUEL TEMPERTURE

DRIVER SOLENOID RETURN

MANIFOLD PRESSURE

IAPCV

USER DEFINED SHUTDOWN (IF EQUIPED)

PROPORTIONAL VALVE SOLENOID (IF EQUIPED)NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

NOTEB

THROTTLE POSITION

FAN SPEED (IF EQUIPED)

DRIVER SOLENOID RETURN

MANIFOLD PRESSURE

GND LVL SHUTDOWN (NO) SW

GND LVL SHUTDOWN (NC) SW

SWITCH 4SWITCH 5

+ BAT (SWITCHED) KEYSWITCH

J1939 DATA + TX

J1939 DATA - RX

EMS ENG ON/CRUISE ON/OFF LAMP

RELAY/THROTTLE ON/OFF SWITCH LAMP

DIGITAL POWER +8V

+ BATTERY (UNSWITCHED)EMS PRESS/TEMP WARNING LAMP

SWITCH OR DIGITAL SENSOR

START AID RELAY/CHECK ENGINE LAMP

+ BATTERY (UNSWITCHED)


TC PROBE +TC PROBE -

ATA DATA LINK -

CAT DATA LINK -CAT DATA LINK +

- BATTERY- BATTERY

ATA DATA LINK +

EMS PRESSURE/TEMP WARMING LAMP

ANALOG SENSOR RETURN

ANALOG SENSOR

ANALOG POWER (+5V)

DIGITAL SENSOR RETURNSECONDARY SPD/TMG

PRIMARY SPEED/TIMING

IAPCV PREESURE+12V ENGINE SPD/TMG

OIL TEMPERTURE

F730-GY

F728-BR

F701-BR

F703-GYF704-OR

COOLANT FLOW

F702-GN

E799-BR

F700-BU

F714-PK

F713-OR

F701-BR

F703-GYF704-OR

F702-GN

995-BU

A751-YL

E797-WH

E798-PK

994-GY

A747-GYA746-PK

995-BU

F726-YL

F731-OR

F729-GN

F727-BU

A708-BR

A707-PUA706-GYA705-BU

A704-GNA703-BR

A702-PU

A701-GY

A712-BR

A711-PUA710-GY

A709-OR

F730-GY

F728-BR

F726-YL

F731-OR

F729-GN

F727-BU



SAE J1939 SHIELD GND

STARTING AID SW OVERRIDE IF EQUIPED

GND LVL SHUTDOWN (NO) SW

GND LVL SHUTDOWN (NC) SWSWITCH 4SWITCH 5

+ BAT (SWITCHED) KEYSWITCH

J1939 (CAN) DATA + TXJ1939 (CAN) DATA - RX

EMS ENG ON/CRUISE ON/OFF LAMP

RELAY/THROTTLE ON/OFF SWITCH LAMP

DIGITAL POWER +8V


EMS PRESS/TEMP WARNING LAMP

EMS PRESS/TEMP WARNING LAMP





TC PROBE +

TC PROBE -

ATA DATA LINK -

CAT DATA LINK -CAT DATA LINK +

ATA DATA LINK +

ANALOG SENSOR RETURN

ANALOG SENSOR

ANALOG POWER (+5V)

DIGITAL SENSOR RETURN

EMS COOLANT FLOW IF EQUIPED

SWITCH OR DIGITAL SENSORSWITCH OR DIGITAL SENSOR

F724-PUF723-PK

F724-PU

F723-PK

F724-PU

F723-PK

229-BK-14229-BK-14

229-BK-14

229-BK-14

F722-OR

A700-OR

996-GN

993-BR

412-BU

412-BU

412-BU

412-BU

F732-PK

E796-GN

E795-YL

999-WH

997-OR998-BR

996-GN

993-BR

997-OR998-BR

993-BR

412-BU

997-OR

998-BR

993-BR

F715-PU

F716-WH

113-OR

F717-YLF718-BU

F719-BR

A234-BKF711-GN

F712-GY

E793-BUE794-YL

892-BR893-GN

150-RD-14

150-RD-14

E793-BU

E794-YL

893-GN892-BR

F721-GY

F720-GN

F706-PU

F707-WH

F705-PK

F725-WH

F708-YL

F709-BU

F710-BR

F722-OR

A700-OR

A700-OR

F715-PU

F716-WH

113-ORF717-YL

F718-BU

F719-BR

F722-OR

A234-BKF711-GN

F712-GY

E793-BUE794-YL

892-BR893-GN

150-RD-14

150-RD-14

F721-GY

F720-GN

F706-PU

F707-WH

F705-PK

F725-WH

F708-YL

F709-BU

F710-BR

JH

GF

EDCB

A + BATTERY

- BATTERY

CAT DATA LINK +CAT DATA LINK -

ATA DATA LINK -

ATA DATA LINK +

120-YL

SERVICE TOOL

CONNECTOR

J60

9

87

12

1110

6

5

4

3

2

1+ BATTERY

- BATTERY

SCROLL

MONITOR AUX TEMP/PRESSUREWARNING LAMP

WARNING ALARM

LAMP POWER/DIMMER

US/METRIC

CAT DATA LINK -

CAT DATA LINK +

229-BK-14

E793-BUE794-YL892-BR

893-GN

120-YL

P26

P1

P2

J26

1

3E-6410

102-2240

106-0735

103-6092

103-6093

103-6091

102-2240

3E-6410

6V-2485

12

3

456

78

9101112

1314

15

1617

1819

20

21

22

2324

2526

272829

3031

32

333435

3637

383940

FUEL TEMPERATURE SENSOR

COOLANT TEMPERATURE SENSOR

ATMOSPHERIC PRESSURE SENSOR

OIL PRESSURE SENSOR

PRIMARY SPEED/TIMING SENSOR

SECONDARY SPEED/TIMING SENSOR

MANIFOLD PRESSURE SENSOR

+5V

+5V

+5V

GROUND

GROUNDSIGNAL

GROUND

SIGNAL

+5V

GROUNDSIGNAL

+5V

GROUNDSIGNAL

SIGNALGROUND

+12V

SIGNAL

GROUND

+12V

SIGNAL

+5V

GROUNDSIGNAL

OIL TEMPERATURE SENSOR

INJECTION ACTUATION PRESSURE SENSOR

+5V

GROUNDSIGNAL

12

12

A

CB

A

BC

B

A

C

A

C

B

AC

B

A

C

B

AC

B

A

C

B

J20/P20

J44/P44

P21/J21

J23/P23

P43/J43

997-OR

993-BR

996-GN

998-BR999-WH

998-BR

996-GN

F732-PK

997-OR

995-BU

993-BR

997-ORA746-PK

993-BR

997-OR

993-BR

997-OR

993-BR

997-OR

993-BR

P51/J51

A

C

B

J27/P27

997-OR

A747-GY

993-BR

A751-YL

E795-YL

J22/P22

994-GY

J45/P45

E796-GN

12

P47

412-BU998-BR

412-BU998-BR BK BK

E798-PKE797-WH

P46

A708-BRA707-PU

A706-GYA705-BU

A704-GNA703-BR

A702-PUA701-GY

F728-BR

F726-YL

F729-GN

F727-BU

Documents

3412E-3408E Engine Electrical Schematics