AEM 30-3705 Infinity-6/8h Mini-Harness User Manual

Infinity-6/8h Mini Harness

User Manual

30-3705

THIS PRODUCT IS LEGAL IN CALIFORNIA FOR RACING VEHICLES ONLY

AND SHOULD NEVER BE USED ON PUBLIC HIGHWAYS.

AEM Performance Electronics

AEM Performance Electronics, 2205 126th Street Unit A, Hawthorne, CA 90250

Phone: [phone] Fax: [phone]

http://www.aemelectronics.com

Instruction Part Number: 10-3705

Document Build 3/11/2014

Table of Contents

IContents

Part I
Part II
Part III
Part IV
Part V
Part VI
Part VII
Part VIII
Part IX

Introduction
3705 Kit Contents
ECU Connectors
3705 Connectors
Installation Notes
3705 Mini-Harness Pinouts
Infinity-6/8h ECU Pinout
Example schematic
12 Month Limited Warranty

1
3
4

5
10
12
14
20
21

© 2014 AEM Performance Electronics

I

AEM Infinity Harness Manuals1

1Introduction

Several universal wiring harness options are available for Infinity products. They range
in complexity from simple plug and pin kits to complete engine harness assemblies that
include power distribution centers. Custom wiring harness projects should only be
undertaken by experienced harness builders. If in doubt, please contact AEM for
recommendations.

30-3805 Universal modular harness system for Infinity-8/10 systems

The Infinity Universal Modular Harness system consists of a universal core harness and
optional application specific extensions. It was designed with flexibility in mind. The
harness system includes many features and it can be used in many different
applications.

30-3807 Universal modular harness system for Infinity-6/8h systems

The Infinity Universal Modular Harness system consists of a universal core harness and
optional application specific extensions. It was designed with flexibility in mind. The
harness system includes many features and it can be used in many different
applications.

30-3705 Universal Mini Harness for Infinity-6/8h systems

This harness is intended to be used as a starting point by experienced harness builders.
It saves time by including basic power distribution features that can be expanded to suit
many application requirements. It allows the harness builder to populate the ECU
connector with only the features needed by the application.

30-3702 Infinity-8/10/12 Mini-harness

This harness is intended to be used as a starting point by experienced harness builders.
It saves time by including basic power distribution features that can be expanded to suit
many application requirements. It allows the harness builder to populate the ECU
connector with only the features needed by the application. Includes 100 96" pre­terminated leads.

30-3703 Infinity-8/10/12 Mini-harness

This harness is intended to be used as a starting point by experienced harness builders.
It saves time by including basic power distribution features that can be expanded to suit
many application requirements. It allows the harness builder to populate the ECU
connector with only the features needed by the application.

30-3701 Infinity-8/10/12 Plug & Pin Kit

Bare necessities to begin a custom wire harness design. Includes 73 and 56 pin Molex
MX123 harness connectors, terminals and sealing plugs, main relay and relay socket.

30-3704 Infinity-6/8h Plug & Pin Kit

Bare necessities to begin a custom wire harness design. Includes 80 pin Molex MX123
harness connector, terminals and sealing plugs, main relay and relay socket.

This manual is focused primarily on the universal modular harness system components

© 2014 AEM Performance Electronics

but it can be used as a reference for any custom harness build based on the Infinity
ECU.

Please read the entire User Manual prior to beginning any installation.

2

© 2014 AEM Performance Electronics

AEM Infinity Harness Manuals3

Infinity-6/8h Mini-Harness
80 Molex MX64 terminals
30 Molex MX64 sealing plugs
User Instructions

23705 Kit Contents

© 2014 AEM Performance Electronics

4

3ECU Connectors

The Infinity-6/8h/8/10 ECUs use the MX123 Sealed Connection System from Molex.
AEM strongly recommends that users become familiar with the proper tools and
procedures before attempting any modifications or additions to these connector
housings. The entire Molex user manual can be downloaded direct from Molex at http://

www.molex.com/mx_upload/family//MX123UserManual.pdf

© 2014 AEM Performance Electronics

AEM Infinity Harness Manuals5

43705 Connectors

Flash enable connector

Not usually needed. Used under certain conditions to force the ECU into flash
programming mode.

© 2014 AEM Performance Electronics

UEGO connector

Connect to 30-3600 UEGO extension harness.

6

© 2014 AEM Performance Electronics

AEM Infinity Harness Manuals7

AEMNet connector

Connect to optional AEMNet enabled devices.

© 2014 AEM Performance Electronics

EFI Main Relay

Required for normal power sequencing function.

8

© 2014 AEM Performance Electronics

AEM Infinity Harness Manuals9

BATT GND

Connect directly to battery negative

BATT PWR

Connect directly to battery positive

Sensor GND

Connect to low reference (GND) of 5V analog sensors

SWT PWR

Ignition switch input.

5V REF

Connect to high reference (5V PWR) of 5V analog sensors

ACC PWR

Option for powering accessory relays

INJ PWR

Fused 12V power for injectors

IGN PWR

Fused 12V power for coils

Flying lead bundle

Wires are ink stamped with descriptions as follows:

Completing the harness

Use the supplied Molex MX64 terminals to add circuits and features as needed. Refer
to the Infinity-6/8h pinout for available options. Refer to the example schematic included
below for recommended wiring designs.

© 2014 AEM Performance Electronics

10

5Installation Notes

Wiring Conventions and EMI

Some wire harness assemblies come pre-wired with all connectors, fuses, and relays
needed to operate an engine. Harnesses that include a PDC generally require
extension/termination of the flying leads to their appropriate devices, and additional
sensors and other devices can be wired into the harness as needed for the specific
application. The following guidelines should be adhered to while completing the required
wiring.

A proper wiring job includes proper termination of the wire at the sensor. The wire
terminal end must be moisture tight where it plugs into the sensor and it must have
strong, electrically sound terminals. The preferred method of securing a wire to a
terminal is to use a crimp terminal with NO solder. It is important to use the proper
crimping tool for sound terminal construction. Plastic terminal plugs must have moisture
tight seals. Inspect each plug to make sure the seals are in place. Di-electric grease can
be added in the terminal slots to further aid in corrosion resistance.

If a splice into a wire must be made and no solder-less terminals are available, then you
must properly solder the splice.

Noise can be a serious problem and can cause intermittent misfiring of the engine.
Every precaution should be taken to prevent interference to the ECU’s operation.
Resistive plug leads are REQUIRED.

To eliminate or reduce the chance of EMI, wires that carry high current must run in
twisted pairs. An example of this would be the power leads from a multiple spark ignition
system. These ignition systems can carry up to 100 amps for a couple milliseconds at
the time of discharge, which induces a strong magnetic field in close proximity of the
wires.

The routing of the wire loom is critical to EFI system performance and safety. The
following safety considerations should be made when installing the wire loom:

Heat protection: the loom should be placed away from or insulated from sources
of heat. The obvious item(s) that should be avoided are the exhaust manifolds,
EGR delivery tubes, and turbochargers. If it is absolutely necessary to route a
wire in close proximity to any of these items, then a suitable insulator must be
used.
Noise suppression: do not route wires near the HT leads. For coil-on-plug ignition
systems this is not as critical.
Moving component protection: route wires away from moving components such
as fans, the blower belt, or the throttle linkage. Also, make sure the wires are not
under any strain when the engine is at full deflection on the motor mounts.
Never have the wires in exposed bundles throughout the engine compartment.

Determining ECU Location

© 2014 AEM Performance Electronics

AEM Infinity Harness Manuals11

It is recommended that the ECU be placed in an environment that does not
expose it to temperatures above 85° Celsius (160F).
In cases where the Infinity is to be used in place of the stock ECU, the location
that the stock ECU occupied is suitable.
On applications where the ECU is to be located in a different position than stock,
the interior of the vehicle is best.
The Infinity should be located in a place that reduces the length of extension wires
from the PDC while maintaining an environmentally sound location.
The ECU location must permit the PDC to be mounted in a serviceable location.

Power Distribution Center

PDCs included in the harness assemblies generally include all relays and fuses
necessary for proper function and should be mounted in a location which permits
serviceability. Ideally the PDC should be located in the passenger compartment, or if
necessary within the engine compartment as far away from heat sources as can be
achieved.

Some PDCs contain flying lead bundles which must be wired to the battery, fuel pump
and radiator fan(s), switched ignition and possibly other interfaces. Routing of this flying
lead bundle should also be taken into account when determining the mounting location
of the PDC.

© 2014 AEM Performance Electronics

63705 Mini-Harness Pinouts

20 Plug

40 Plug

60 Plug

80 Plug

19 Plug

39 Plug

59 Plug

79 Plug

18 Plug

38 Plug

58 Plug

78 Plug

17 Plug

37 Plug

57 Plug

77 Plug

16 Plug

36 Plug

56 Plug

76 Plug

15 Plug

35 WHT (Cable)

55 Plug

75 Plug

CAN A +

14 Plug

34 GRN (Cable)

54 Plug

74 Plug

CAN A -

13 Plug

33 BLK

53 Plug

73 Plug

GND

12 Plug

32 Plug

52 Plug

72 RED

Harness Flash Enable

11 Plug

31 Plug

51 Plug

71 Plug

10 RED/BLK

30 Plug

50 GRY

70 Plug

Battery perm power

+5V_Out

9 ORG

29 Plug

49 GRY

69 Plug

UEGO1 VM

+5V_Out

8 BLK

28 Plug

48 PNK

68 ORG

UEGO1 UN

Ign. Switch

+12V

7 PNK

27 Plug

47 WHT

67 BLK

UEGO1 IP

12V+_Relay_Control

GND

6 GRN

26 Plug

46 BLK

66 Plug

UEGO1 IA

GND

5 WHT

25 Plug

45 Plug

65 Plug

UEGO1 Heat-

4 Plug

24 BLK/WHT

44 Plug

64 Plug

Sensor GND

3 Plug

23 BLK/WHT

43 BLK

63 ORG

Sensor GND

GND

+12V

2 Plug

22 Plug

42 Plug

62 Plug

1 Plug

21 Plug

41 Plug

61 Plug

12

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AEM Infinity Harness Manuals13

Pins 10, 43, 48, 63 are absolute minimum required to power the ECU.

Battery Power must receive 12V power BEFORE the Ignition Switch turns on
(12V)

© 2014 AEM Performance Electronics

7Infinity-6/8h ECU Pinout

Infinity Pin

Hardware Ref.

Hardware Specification

Notes

C1-1

LowsideSwitch_4

Lowside switch, 1.7A max, NO
internal flyback diode.

See Setup Wizard Pages "User GPOs" for
activation criteria and "LowSide Assignment
Tables" for output assignment

C1-2

LowsideSwitch_5

Lowside switch, 6A max with internal
flyback diode. Inductive load should
NOT have full time power.

See Setup Wizard Page "LowSide Assignment
Tables" for output assignment and 2D table
"LS5_Duty [%]" for activation.

C1-3*

LowsideSwitch_6
(*Infinity-6 Only)

Lowside switch, 6A max with internal
flyback diode. Inductive load should
NOT have full time power.

Available on P/N 30-7106 only. See Setup
Wizard Page "LowSide Assignment Tables" for
output assignment and 2D table "LS6_Duty
[%]" for activation.

C1-3**

Injector 8
(**Infinity-8H Only)

For use with high impedance (10-15
ohms) injectors only, 1.7A max.

Available on P/N 30-7108 only

C1-4*

LowsideSwitch_7
(*Infinity-6 Only)

Lowside switch, 6A max, NO internal
flyback diode.

Available on P/N 30-7106 only. See Setup
Wizard Page "LowSide Assignment Tables" for
output assignment and 2D table "LS7_Duty
[%]" for activation.

C1-4**

Injector 7
(**Infinity-8H Only)

For use with high impedance (10-15
ohms) injectors only, 1.7A max.

Available on P/N 30-7108 only

C1-5

UEGO 1 Heat

Bosch UEGO controller

Lowside switch for UEGO heater control.
Connect to pin 4 of Bosch UEGO sensor. NOTE
that pin 3 of the Sensor is heater (+) and must
be power by a fused/switched 12V supply.

C1-6

UEGO 1 IA

Trim Current signal. Connect to pin 2 of Bosch
UEGO sensor

C1-7

UEGO 1 IP

Pumping Current signal. Connect to pin 6 of
Bosch UEGO sensor

C1-8

UEGO 1 UN

Nernst Voltage signal. Connect to pin 1 of
Bosch UEGO sensor

C1-9

UEGO 1 VM

Virtual Ground signal. Connect to pin 5 of
Bosch UEGO sensor.

C1-10

+12V_R8C_CPU

Dedicated power management CPU

Full time battery power. MUST be powered
before the ignition switch input is triggered
(See C1-48).

C1-11

Coil 4

25 mA max source current

0-5V Falling edge fire. DO NOT connect
directly to coil prima ry. Must use an ignitor
OR CDI that accepts a FALLING edge fire signal.

C1-12

Coil 3

25 mA max source current

0-5V Falling edge fire. DO NOT connect
directly to coil prima ry. Must use an ignitor
OR CDI that accepts a FALLING edge fire signal.

C1-13

Coil 2

25 mA max source current

0-5V Falling edge fire. DO NOT connect
directly to coil prima ry. Must use an ignitor
OR CDI that accepts a FALLING edge fire signal.

C1-14

Coil 1

25 mA max source current

0-5V Falling edge fire. DO NOT connect
directly to coil prima ry. Must use an ignitor
OR CDI that accepts a FALLING edge fire signal.

C1-15

Coil 6

25 mA max source current

0-5V Falling edge fire. DO NOT connect
directly to coil prima ry. Must use an ignitor
OR CDI that accepts a FALLING edge fire signal.

C1-16

Coil 5

25 mA max source current

0-5V Falling edge fire. DO NOT connect
directly to coil prima ry. Must use an ignitor

14

© 2014 AEM Performance Electronics

AEM Infinity Harness Manuals15

Infinity Pin

Hardware Ref.

Hardware Specification

Notes

OR CDI that accepts a FALLING edge fire signal.

C1-17

Crankshaft Position
Sensor VR+

Differential Variable Reluctance Zero
Cross Detection

See Setup Wizard page Cam/Crank for
options.

C1-18

Crankshaft Position
Sensor VR-

See Setup Wizard page Cam/Crank for
options.

C1-19

Camshaft Position Sensor
1 VR-

Differential Variable Reluctance Zero
Cross Detection

See Setup Wizard page Cam/Crank for
options.

C1-20

Camshaft Position Sensor
1 VR+

See Setup Wizard page Cam/Crank for
options.

C1-21

LowsideSwitch_2

Lowside switch, 1.7A max, NO
internal flyback diode.

See Setup Wizard Pages "User GPOs" for
activation criteria and "LowSide Assignment
Tables" for output assignment

C1-22

LowsideSwitch_3

Lowside switch, 6A max with internal
flyback diode. Inductive load should
NOT have full time power.

See Wizard page "LowSide Assignment Tables"
for output assignment.
MIL Activates when any of the following flags
are true: ErrorAirTemp, ErrorBa ro,
ErrorCoolantTemp, ErrorEBP,
ErrorFuelPressure, UEGO_0_Diag_error,
UEGO_1_Diag_error, ErrorMAFAnalog,
ErrorMAFDigital, ErrorMAP, ErrorOilPressure,
ErrorThrottle.

C1-23

AGND_1

Dedicated analog ground

Analog 0-5V sensor ground

C1-24

AGND_1

Dedicated analog ground

Analog 0-5V sensor ground

C1-25

Crankshaft Position
Sensor Hall

10K pullup to 12V. Will work with
ground or floating switches.

See Setup Wizard page Cam/Crank for
options.

C1-26

Camshaft Position Sensor
1 Hall

10K pullup to 12V. Will work with
ground or floating switches.

See Setup Wizard page Cam/Crank for
options.

C1-27

Digital_In_2

10K pullup to 12V. Will work with
ground or floating switches.

See Setup Wizard page Cam/Crank for
options.

C1-28

Dig3 [Hz] / Dig3_Duty

10K pullup to 12V. Will work with
ground or floating switches.

Frequency input can be assigned to Wheel
Speed, TurboSpeed, Flex Fuel or other
functions. See Setup Wizard page Input
Function Assignments for mapping options.

C1-29

Dig4 [Hz] / Dig4_Duty

10K pullup to 12V. Will work with
ground or floating switches.

See Setup Wizard page Vehicle Speed for
calibration constant.

C1-29

RS232 Rx

RS232 Line Driver/Receiver

Future expansion

C1-30

Digital_In_5

10K pullup to 12V. Will work with
ground or floating switches.

See ClutchSwitch 1-axis table for setup
options. Input can be assigned to different
pins. See Setup Wizard page Input Function
Assignments for input mapping options.

C1-30

RS232 Tx

RS232 Line Driver/Receiver
Future expansion

C1-31*

Dig6 [Hz] / Dig6_Duty
(*Infinity-6 Only)

10K pullup to 12V. Will work with
ground or floating switches.

Available on P/N 30-7106 only. Frequency
input can be assigned to Wheel Speed,
TurboSpeed, Flex Fuel or other functions. See
Setup Wizard page Input Function
Assignments for mapping options.

© 2014 AEM Performance Electronics

16

Infinity Pin

Hardware Ref.

Hardware Specification

Notes

C1-31**

Coil 7
(**Infinity-8H Only)

25 mA max source current

Available on P/N 30-7108 only. 0-5V Falling
edge fire. DO NOT connect directly to coil
primary. Must use an ignitor OR CDI that
accepts a FALLING edge fire signal.

C1-32*

Digital_In_7
(*Infinity-6 Only)

10K pullup to 12V. Will work with
ground or floating switches.

Available on P/N 30-7106 only. Input can be
assigned to different pins. See Setup Wizard
page Input Function Assignments for input
mapping options.

C1-32**

Coil 8
(**Infinity-8H Only)

25 mA max source current

Available on P/N 30-7108 only. 0-5V Falling
edge fire. DO NOT connect directly to coil
primary. Must use an ignitor OR CDI that
accepts a FALLING edge fire signal.

C1-33

Power Ground

Power Ground
Connect directly to battery ground

C1-34

CANL_Aout

Dedicated High Speed CAN
Transceiver

Recommend twisted pair (one twist per 2")
with terminating resistor. Contact AEM for
additional information.

C1-35

CANH_Aout

Dedicated High Speed CAN
Transceiver

Recommend twisted pair (one twist per 2")
with terminating resistor. Contact AEM for
additional information.

C1-36

CanL_Bout

Dedicated High Speed CAN
Transceiver

Not used, reserved for future expansion.

C1-37

CanH_Bout

Dedicated High Speed CAN
Transceiver

Not used, reserved for future expansion.

C1-38

Analog_In_Temp_1

12 bit A/D, 2.49K pullup to 5V

See "Coolant Temperature" Setup Wizard for
selection.

C1-39

Analog_In_Temp_2

12 bit A/D, 2.49K pullup to 5V

See "Air Temperature" Setup Wizard for
selection.

C1-40

Analog_In_Temp_3

12 bit A/D, 2.49K pullup to 5V

See 1D table OilTempCal table for calibration
data and OilTemp [C] for channel data.

C1-41

Lowside Fuel Pump drive

Lowside switch, 1.7A max, NO
internal flyback diode.

Switched ground. Will prime for 2 seconds at
key on and activate if RPM > 0.

C1-42

LowsideSwitch_1

Lowside switch, 6A max with internal
flyback diode. Inductive load should
NOT have full time power.

See Setup Wizard page Boost Control for
options. Monitor BoostControl [%] channel for
output state.

C1-43

Power Ground

Power Ground
Connect directly to battery ground

C1-44

Knock Sensor 1

Dedicated knock signal processor

See Setup Wizard page Knock Setup for
options.

C1-45

Knock Sensor 2

Dedicated knock signal processor

See Setup Wizard page Knock Setup for
options.

C1-46

Power Ground

Power Ground
Connect directly to battery ground

C1-47

+12V_Relay_Control

0.7A max ground sink for external
relay control

Will activate at key on and at key off according
to the configuration settings.

© 2014 AEM Performance Electronics

AEM Infinity Harness Manuals17

Infinity Pin

Hardware Ref.

Hardware Specification

Notes

C1-48

+12V_SW

10K pulldown

Full time battery power must be available at
C1-10 before this input is triggered.

C1-49

+5V_Out_1

Regulated, fused +5V supply for
sensor power

Analog sensor power

C1-50

+5V_Out_1

Regulated, fused +5V supply for
sensor power

Analog sensor power

C1-51

Analog_In_7

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power
supply and Sensor Ground pins as the low
reference. Do not connect signals referenced
to +12V as this can permanently damage the
ECU. See the Setup Wizard Set Throttle Range
page for automatic min/max calibration.
Monitor the Throttle [%] channel. Also
DB1_TPSA [%] for DBW applications.

C1-52

Analog_In_8

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power
supply and Sensor Ground pins as the low
reference. Do not connect signals referenced
to +12V as this can permanently damage the
ECU. See the Setup Wizard Set Manifold
Pressure page for setup and calibration.
Monitor the MAP [kPa] channel.

C1-53

Analog_In_9

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power
supply and Sensor Ground pins as the low
reference. Do not connect signals referenced
to +12V as this can permanently damage the
ECU. See the Setup Wizard Fuel Pressure page
for setup and calibration. Monitor the
FuelPressure [psig] channel.

C1-54

VR+_In_2

Differential Variable Reluctance Zero
Cross Detection

See Non Driven Wheel Speed Calibration in
the Setup Wizard Vehicle Speed page.

C1-55

VR-_In_2

C1-56

VR-_In_3

Differential Variable Reluctance Zero
Cross Detection

See Driven Wheel Speed Calibration in the
Setup Wizard Vehicle Speed page.

C1-57

VR+_In_3

C1-58

HighsideSwitch_0

2.6A max, High Side Solid State Relay

See Setup Wizard page 'HighSide Assigment
Tables' for configuration options. See 2D
lookup table 'HS0_Table' for activation
settings.
See Setup Wizard page 'VTEC' for
default activation criteria.

C1-59

Stepper_1B

Automotive, Programmable Stepper
Driver, up to 28V and ±1.4A

Be sure that each internal coil of the stepper
motor are properly paired with the 1A/1B and
2A/2B ECU outputs. Supports Bi-Polar stepper
motors only.

C1-60

Stepper_2B

Automotive, Programmable Stepper
Driver, up to 28V and ±1.4A

Be sure that each internal coil of the stepper
motor are properly paired with the 1A/1B and
2A/2B ECU outputs. Supports Bi-Polar stepper
motors only.

C1-61

DBW1 Motor -

5.0A max Throttle Control Hbridge
Drive

+12V to close

C1-62

DBW1 Motor +

5.0A max Throttle Control Hbridge
Drive

+12V to open

© 2014 AEM Performance Electronics

18

Infinity Pin

Hardware Ref.

Hardware Specification

Notes

C1-63

+12V

12 volt power from relay

12 volt power from relay. Relay must be
controlled by +12V Relay Control signal, pin
C1-47 above.

C1-64

Injector 6

Saturated (P/N 30-7108) or peak and
hold, 3A max continuous (P/N 30-

7106)

Injector 6

C1-65

Injector 5

Saturated (P/N 30-7108) or peak and
hold, 3A max continuous (P/N 30-

7106)

Injector 5

C1-66

Injector 4

Saturated (P/N 30-7108) or peak and
hold, 3A max continuous (P/N 30-

7106)

Injector 4

C1-67

Power Ground

Power Ground
Connect directly to battery ground

C1-68

+12V

12 volt power from relay

12 volt power from relay. Relay must be
controlled by +12V Relay Control signal, pin
C1-47 above.

C1-69

Analog_In_19

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power
supply and Sensor Ground pins as the low
reference. Do not connect signals referenced
to +12V as this can permanently damage the
ECU.

C1-70

Analog_In_18

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power
supply and Sensor Ground pins as the low
reference. Do not connect signals referenced
to +12V as this can permanently damage the
ECU.

C1-71

Analog_In_16

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power
supply and Sensor Ground pins as the low
reference. Do not connect signals referenced
to +12V as this can permanently damage the
ECU.

C1-72

Flash_Enable

10K pulldown

Not usually needed for automatic firmware
updates through Infinity Tuner. If connection
errors occur during update, connect 12 volts
to this pin before proceeding with upgrade.
Disconnect the 12 volts signal after the
update.

C1-73

Analog_In_13

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power
supply and Sensor Ground pins as the low
reference. Do not connect signals referenced
to +12V as this can permanently damage the
ECU. See Setup Wizard Oil Pressure page for
setup options. See OilPressure [psig] for
channel data.

C1-74

Analog_In_11

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power
supply and Sensor Ground pins as the low
reference. Do not connect signals referenced
to +12V as this can permanently damage the
ECU.

© 2014 AEM Performance Electronics

AEM Infinity Harness Manuals19

Infinity Pin

Hardware Ref.

Hardware Specification

Notes

See the 1D lookup table 'ShiftSwitch' for
setup. Also assignable to multiple functions.
See Setup Wizard for details.

C1-75

Analog_In_10

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power
supply and Sensor Ground pins as the low
reference. Do not connect signals referenced
to +12V as this can permanently damage the
ECU. See the Setup Wizard Barometric
Pressure page for setup and calibration.
Monitor the BaroPress [kPa] channel.

C1-76

Injector 3

Saturated (P/N 30-7108) or peak and
hold, 3A max continuous (P/N 30-

7106)

Injector 3

C1-77

Injector 2

Saturated (P/N 30-7108) or peak and
hold, 3A max continuous (P/N 30-

7106)

Injector 2

C1-78

Injector 1

Saturated (P/N 30-7108) or peak and
hold, 3A max continuous (P/N 30-

7106)

Injector 1

C1-79

Stepper_2A

Automotive, Programmable Stepper
Driver, up to 28V and ±1.4A

Be sure that each internal coil of the stepper
motor are properly paired with the 1A/1B and
2A/2B ECU outputs. Supports Bi-Polar stepper
motors only.

C1-80

Stepper_1A

Automotive, Programmable Stepper
Driver, up to 28V and ±1.4A

Be sure that each internal coil of the stepper
motor are properly paired with the 1A/1B and
2A/2B ECU outputs. Supports Bi-Polar stepper
motors only.

© 2014 AEM Performance Electronics

8Example schematic

20

© 2014 AEM Performance Electronics

AEM Infinity Harness Manuals21

912 Month Limited Warranty

Advanced Engine Management Inc. warrants to the consumer that all AEM High
Performance products will be free from defects in material and workmanship for a
period of twelve (12) months from date of the original purchase. Products that fail within
this 12-month warranty period will be repaired or replaced at AEM’s option, when
determined by AEM that the product failed due to defects in material or workmanship.
This warranty is limited to the repair or replacement of the AEM part. In no event shall
this warranty exceed the original purchase price of the AEM part nor shall AEM be
responsible for special, incidental or consequential damages or cost incurred due to the
failure of this product. Warranty claims to AEM must be transportation prepaid and
accompanied with dated proof of purchase. This warranty applies only to the original
purchaser of product and is non-transferable. All implied warranties shall be limited in
duration to the said 12-month warranty period. Improper use or installation, accident,
abuse, unauthorized repairs or alterations voids this warranty. AEM disclaims any
liability for consequential damages due to breach of any written or implied warranty on
all products manufactured by AEM. Warranty returns will only be accepted by AEM when
accompanied by a valid Return Merchandise Authorization (RMA) number. Product
must be received by AEM within 30 days of the date the RMA is issued.

Please note that before AEM can issue an RMA for any electronic product, it is first
necessary for the installer or end user to contact the EMS tech line at 1-800-423-0046 to
discuss the problem. Most issues can be resolved over the phone. Under no
circumstances should a system be returned or a RMA requested before the above
process transpires.

AEM will not be responsible for electronic products that are installed incorrectly, installed
in a non-approved application, misused, or tampered with.

Any AEM electronics product can be returned for repair if it is out of the warranty period.
There is a minimum charge of $50.00 for inspection and diagnosis of AEM electronic
parts. Parts used in the repair of AEM electronic components will be extra. AEM will
provide an estimate of repairs and receive written or electronic authorization before
repairs are made to the product.

© 2014 AEM Performance Electronics