NOTE: The TC1WC may or may not be ECM ENGINE WIRING DIAGRAM FORM WARNING

To prevent personal injury or death, read all

controlled, depending on the engine build.
safety instructions in the "Safety Information"
Air Management System Lube System Fuel System Timing System MAXXFORCE ® 15 section of Engine Diagnostics Manual EGES-
Beginning with 2011 Model Year 515 before doing any diagnostic procedures.
Air Control Valve
Information on this form was current at the time of
Engine •Turbocharger 1 Wastegate Charge Air Intake Intake Turbocharger 2 Engine Oil Engine Oil Engine Oil Fuel Rail Fuel
Throttle Valve Control (TC1WC) Cooler Outlet Manifold Manifold Compressor Temperature Pressure Level Pressure Delivery Crankshaft 2 publication. Updates may have been made to
(ETV) •Turbocharger 2 Wastegate Temperature Pressure Temperature Inlet Sensor (EOT) (EOP) (EOL) (FRP) Pressure Position (CKP) introduce product improvements and technical
Control (TC2WC) (CACOT) (IMP) (IMT) (TC2CIS) (FDP) 1 advancements. See correct truck service manual
•Turbocharger 1 Turbine ECM 96-Pin
Outlet Pressure (TC1TOP) for chassis wiring.
Camshaft
E1 connector
2
Position (CMP) (300 series) For detailed circuit information, refer to the
1 CKP-L E1-16 following Truck documents:
CKP-H E1-40 Chassis Electrical Circuit Diagram Manual
Fuel Pressure CMP-H E1-17
4 2 Control Valve (FPCV) 2 CMP-L E1-41 Electrical System Troubleshooting Guide
4 2 4 2 4 2 4 2 Note: FPCV is part of FPCV 12V E1-25
3 1
5 1 1 4 Color code for schematic lines
the HP Fuel Pump 1 FPCV E1-73 Red B+ (Battery Voltage)
2
1 3 SIG GND E1-22 Red High side driver control
1
6 4
10 6
1 2 3 1 3 1 3 1 3 1 3 1 3 FDP E1-35 Purple Injectors (48 Volts)
VREF5 E1-81 Blue VREF (5 Volts)
VREF6 E1-88 Green Signal
FRP E1-34 Green PWM - Signal
SIG GND E1-21 Brown Data Communication
SIG GND E1-46 Black GND (Ground)
SHD GND E1-70 Black Low side driver control
EOL E1-64
SIG GND E1-45
SIG GND E1-19
EOP E1-10
VREF5 E1-82 58-Pin C2 58-pin C1
SIG GND E1-63 Chassis Chassis
EOT E1-36 (200) (100)

SIG GND E1-87 BARO ECM

ECP E1-60
VREF5 E1-93 16-Pin E2 96-Pin E1
TC2CIP E1-79 Engine Engine
VREF4 E1-58 (400) (300)
TC2CIT E1-12
SIG GND E1-55 ECM 16-Pin
SIG GND E1-83 E2 Connector
IMT E1-37
SIG GND E1-43 (400 series)
Under Valve Cover
IMP E1-18 High E4-05 INJ1 H E2-05
VREF2 E1-86 E2-12
E4-12 INJ1 L
CACOT E1-13 High E4-11 INJ2 H E2-11
E4-06 INJ2 L E2-06
High E4-04 INJ3 H E2-04
ECM PWR OUT 3 E1-26
TC2WC E1-02 E4-13 INJ3 L E2-13
VREF3 E1-89 High E4-03 INJ4 H E2-03
TC1TOP E1-61 E4-14 INJ4 L E2-14
SIG GND E1-20 High E4-02 INJ5 H E2-02
TC1WC E1-52 E4-15 INJ5 L E2-15
ECM PWR OUT 3 E1-27 High E4-01 INJ6 H E2-01
ETP E1-57 E4-16 INJ6 L E2-16
ETC E1-75
EGRC E1-77
EGRT E1-95
SIG GND E1-94 Injector Injector Injector
ECB2 12V E1-05 #2 #4 Injector #6
ECB2 E1-47 Injector Injector
ECM PWR OUT 2 E1-50 #1 #3 #5
ECB Harness ECB1 E1-49
Connector ECT1 E1-14 FUEL INJECTORS
1 2 34 SIG GND E1-68
ECT2 E1-71
NOTE: The Mass Air Flow
2 1 SIG GND E1-44 E sensor is connected to the
A
ECM PWR OUT 3 E1-24 engine, but turned off in
3 1 4 3 CFV E1-74 the ECM software. You
CMV E1-48 should never need to
6 4
ECM PWR OUT 2 E1-28 replace this sensor.
3 1 3 CSFS E1-03
1 3 1 2
1 2 1 2 2 1 4 1 ECM PWR OUT 2 E1-29 MAF 7
MassAir
Mass Airflow
Flow
1 2 1 2 1 2 SIG GND E1-78 ECM PWR OUT 1 8
Sensor (MAF)
(MAF)
4 2 4 2
VREF3 E1-90 MAF GND 9
Cold Start Fuel 2 3 CCPS E1-66
Solenoid E1-42 AAT 15
(CSFS) AFTFD-H 10
E1-53
Exhaust Gas 21-Way On/Off
Recirculation
Cold Start System E1-76 AFTFD-L 11
(EGR) Valve Engine Engine Engine E1-39 VSS-H 12 Engine Harness
Compression Compression Compression Crankcase Pressure Sensor (CCPS) E1-15 VSS-L 13
EGR Temp
Brake 2 (ECB2) Brake 1 (ECB1) Brake 3 (ECB3) Engine Coolant Engine Coolant Engine Coolant Coolant Flow Coolant Mixer A E1-67 CSRD 19 Interface
EGR (EGRT)
Engine Compression Brake Pressure Temperature 1 Temperature 2 Valve (CFV) Valve (CMV) B E1-72 CSRC 20 Connector
System (ECP1) (ECT1) (ECT2)
C E1-96 CSRE 21
Under Valve Cover Cooling System EOT2 5
GND 2
SWBAT 4
EGRP 14
GND 1
SWBAT 3
EGED-525 © 2011 Navistar, Inc. All rights reserved
 ENGINE WIRING DIAGRAM FORM

PayStar Additional
C2-22 COO
MAXXFORCE ® 15 C2-26 TSA
C2-27 ACD_SW

Inputs
Beginning with 2011 Model Year C2-33 BNO
C2-36 CP_SW

C2 connector
For detailed circuit information, refer to the C2-39 PB_SW

ECM 58-Pin
C2-40 EB_SW1
following Truck documents:
Chassis Electrical Circuit Diagram Manual
C2-53 EB_SW2 Fuel Cooling Down Stream Injection (DSI) Other CAN Exhaust Sensors
Electrical System Troubleshooting Guide System System AFT Fuel Pressure 2 AFT Fuel Shutoff Connections
1-H (AFTFP2) Sensor Valve (AFTFSV)
Color code for schematic lines
B+ (Battery Voltage)
1-A
Water In Fuel
DPF Sensors
Red Installed in the

Body Builder Connectors

Red High side driver control C2-09 TACH 1-G (WIF) Surge Tank DOC Inlet DOC Outlet DPF DPF Outlet

(200 series)
Purple Injectors (48 Volts) C2-10 XCS 2-G Temp Temp Differential Temp
C2-13 AES 2-H

(Conn. # - Pin #)
Blue VREF (5 Volts) (DOCIT) (DOCOT) Pressure (DPFOT)
Green Signal
C2-15 WTSL 2-F AFT Fuel (DPFDP)
Green PWM - Signal
C2-17 WEL 2-D ECL Sensor Doser
Brown Data Communication C2-23 RAS 1-E (AFTFD) MPH RPM
Black GND (Ground) C2-28 RSL 2-E Instrument Cluster
Black Low side driver control C2-30 VSS CAL 1-F
C2-35 RVAR 1-C AFT Fuel Inlet Sensor Body
C2-46 RPAS (AFTFIS) Controller
C2-48 RPRE 1-B 1 3
C2-52 SCS 1-D 2 1 2 1 2 1
Ambient Air Temp
(AAT)
2-B AFTFSV AFTFP2 AFTFD AFTFIS
2-A 1 2 1 3 1 2 1 4
5 1
1 2-C 1 2 1 2 3 4 7 8 9 5 6

2
SIG GND C2-43 1-J 2 1 10 6

C2-16
C2-37 WIF
C2-34 SIG GND
C2-49 ECL
C2-07 AFTFS-H
21-Way On/Off C2-20 AFTFS-L
Engine Harness C2-08 VREF4
C2-42 SIG GND
Interface C2-50 AFTFP2
Connector C2-41 SIG GND
C2-55 APP2
C2-54 APP1 120 Ω Transmission Connector
15 AAT C2-01 B+
14 EGRP C2-02 GND
10 AFTFD-H
11 AFTFD-L
12 VSS-H
13 VSS-L
3 SWBAT - -
4 SWBAT In-Cab Diagnostic
1 GND C1-02 GND
Connector 120 Ω
2 GND C1-04 GND Megafuse + +
5 EOT2 C1-06 GND E D
C1 connector

C1-57 MIL C
ECM 58-Pin

7 MAF
C1-37 VREF4
10A F
ECM PWR OUT 1 BATTERIES A
8 C1-13 RPS G B
9 MAF GND C1-24 SIG GND H J
21 CSRE C1-56 ERO
19 CSRD C1-17 SWBAT Stand Alone Real Time Clock
20 CSRC C1-01 B+
C1-03 B+ (SART)
C1-05 B+ A To SWBAT
C1-19 TIMER 42-Way Cab B GND To GND
C1-15 Interface C J1939-H
C1-44 Connector D J1939-L
C1-54 Engine Fan Control
C1-21 (EFC) - 2 Speed 11
17
B 5A Ignition Switch
(100 series)

5 C1-18 EFC 38
C1-30 ECM PWR OUT 3 A 37 10A
8 25A
9 F
42
2 1 24 Accelerator Pedal
7 6 C1-23 SIG GND 29 Position (APP)
C1-36 VREF1 30
Cold Start 3
Cold Start C1-50 VREF5 22
Fuel Relay C1-11 SIG GND 23
Igniter (CSR) 28
(CSFI) A
C1-47 J1939-L
C1-34 J1939-H
C1-42 ECM PWR OUT 2
C1-52 PUMPCUR Oxygen Sensor (O2S)
C1-53 TRIMRES 5 1 Located in the
C1-46 O2SH-L Engine Exhaust
58-Pin C2 58-pin C1 C1-33 ECM PWR OUT 1
Chassis Chassis C1-39 NVOLT 6 2
(200) (100) C1-40 VIRGND

BARO ECM C1-41 SIG GND

C1-26 AFTFT
16-Pin E2 96-Pin E1 C1-25 AFTFP1
Engine Engine C1-28 DOCIT
(400) (300) C1-22 SIG GND
C1-16 DOCOT
C1-55 SIG GND
C1-12 DPFDP
C1-27 DPFOT
C1-10 SIG GND
Fuselink
25A
EGED-525 © 2011 Navistar, Inc. All rights reserved