Instruction Manual Infinity Layover Harness GM LS Engines 24x ! WARNING: This installation is not for the electronic novice or the PC illiterate! Use this system with EXTREME caution! If you are not well versed in electronics and vehicle instrumentation or are not PC literate, please do not attempt the installation. Refer the installation to an AEM trained tuning shop. A list of AEM trained tuning shops is available at www.aemelectronics.com/dealer_locator.php or by calling 800-423-0046.
Introduction This Infinity Layover Harness was designed for the GM LS Engine 24x (manual transmission). The harness includes all standard GM (or equivalent) connectors for direct plug-in fitment, and requires minimal wiring to complete the Power Distribution Center (PDC) connections. The Infinity ECU is sold separately, and includes base configuration files for the GM LS Engines 24x.
Power Distribution Center Included in the harness is a Bussmann Power Distribution Center (PDC), pre-populated with the required relays and fuses for correct operation of the harness. The PDC comes with a bundle of flying leads that need to be properly wired as part of the installation. Flying leads include switched ignition, battery power and ground, and switched power to Fuel Pump and Coolant Fans 1 & 2. Connector Labels All connectors come labeled to assure proper installation and reduce setup time.
Downloadable Files The Quickstart Guide and Layover Harness Instruction Manual can be downloaded from www.aemelectronics.com. These documents are available for download here: www.aemelectronics.com/engine-management-systems-9/infinity-8-10-12stand-alone-programmable-ems-90/infinitytuner-software-and-instruction-downloads-92/ Configuration files can be downloaded from www.aeminfinity.com/.
Installation Notes Wiring Conventions and EMI The GM LS Engines 24x layover harness comes pre-wired with all connectors, fuses, and relays needed to operate an engine. However, the PDC does 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.
Required Wiring The GM LS Engines 24x Layover Harness comes with a flying lead bundle wired into the PDC. Each of the flying leads needs to be wired to an appropriate device, or sealed and tied wrapped if not used. Power and Ground The Infinity must have an electrically secure ground connection, which means that the battery negative must be properly grounded to the battery AND the cylinder head grounds muse be properly grounded to the engine.
Switched Ignition 12V The Switched Ignition flying lead (PNK-WHT) must be connected to the output on the ignition switch that supplies 12V when the switch is in the Start and Run position. The ignition switch output should be isolated, meaning that it is dedicated to the PNK-WHT wire, and should NOT supply switched ignition power to any other device. Perm 12V The Perm 12V/Fused 5A PNK flying lead can be used to power the ignition switch if the switch does not already have a 12V source wired to it.
GM LS Engines 24x Pinout C1 Infinity Connector C1 Pin Wire Color Gauge C1-2 C1-4 C1-5 C1-6 C1-7 C1-8 C1-10 C1-11 C1-12 C1-13 C1-14 C1-15 C1-16 C1-17 C1-18 C1-19 C1-20 C1-21 C1-22 C1-24 C1-27 C1-28 C1-29 C1-30 C1-31 C1-32 C1-34 C1-35 C1-36 C1-41 C1-42 C1-44 C1-55 C1-56 C1-57 C1-58 C1-59 C1-60 C1-61 C1-62 C1-63 C1-64 C1-65 C1-66 C1-67 C1-69 C1-70 C1-71 C1-72 C1-73 GRN WHT GRN RED BLK ORN PNK/RED DK GRN/WHT LT BLU RED/WHT PPL LT BLU/WHT DK GRN VIO VIO/BLK YEL/BLK PNK/BLK DK BLU/BLK BRN/WHT YEL DK BLU LT
C2 Infinity Connector C2 Pin Wire Color Gauge C2-3 C2-4 C2-5 C2-8 C2-9 C2-13 C2-14 C2-18 C2-21 C2-22 C2-23 C2-24 C2-29 C2-30 C2-31 C2-32 C2-34 C2-36 C2-39 C2-40 C2-45 C2-46 C2-47 C2-48 C2-49 C2-50 C2-51 C2-52 BLK RED/BLK DK BLU/WHT BRN PNK/YEL ----GRN --GRY GRY GRY ORN/WHT BLK, PPL TAN, BLK ORN/BLK ----BLK BLK ORN BLK RED GRN WHT PNK/RED RED PPL/WHT 18 20 20 20 20 ----20 --20 20 20 20 20 20 20 ----18 18 20 20 20 20 18 --20 20 C3 56 Way F Receptacle 0.64 2.
C5 Injector 1 Pin Wire Color Gauge A B PNK BLK 20 20 C6 2 Way F Metri-Pack 280.
C14 MAF Sensor Pin Wire Color Gauge A B C YEL BLK PNK 20 20 20 C15 3 Way F Metri-Pack 150 Series (BLK) Destination 1 2 3 C1-24 --- --SP-3 --- --SP-7 --- --- 4 ------- 5 ------- Idle Air Control Motor Pin Wire Color Gauge A B C D LT GRN/BLK LT GRN/WHT LT BLU/BLK LT BLU/WHT 20 20 20 20 C16 1 C1-71 C1-69 C1-72 C1-70 Wire Color Gauge A B C GRY BLK DK BLU 20 20 20 C17 4 --------- 5 --------- Wire Color Gauge A B C M DK BLU/BLK YEL/BLK GRY Mesh 20 20 20 --- C18 1 C1-21 C1-19 C1-
C22 Vehicle Speed Sensor Pin Wire Color Gauge A B GRY/BLK PPL/WHT 20 20 C23 2 Way F Metri-Pack 150.
P1 Power Distribution Center Pin Wire Color Gauge 1AA 1A 1B 1C 1D 2AA 2A 2B 2C 2D 3AA 3A 3B 3C 3D 4AA 4A 4B 4C 4D 5AA 5A 5B 5C 5D 6AA 6A 6B 6C 6D 7AA 7A 7B 7C 7D 8AA 8A 8B 8C 8D 9AA 9A 9B 9C 9D 10AA 10A 10B 10C 10D RED RED RED --YEL/WHT RED RED RED --PNK RED RED RED --YEL/WHT RED RED RED --PNK RED RED RED --VIO RED PNK PNK --YEL/BLU RED PNK/RED RED --VIO/BLK PNK PNK/YEL PNK --YEL/RED PNK PNK RED --VIO/WHT PNK PNK PNK --GRN/RED 14 14 14, 20 --20 14 14 20 --14,18,20 14 14 14, 20 --20, 20 14 14 20 --14,
SP-1 1 2 3 4 5 6 7 8 9 10 Battery Ground Splice Wire Color Gauge BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK 10 16 16 20 14 18 18 18 12 12 SP-2 1 2 3 4 5 Wire Color Gauge PNK PNK PNK PNK PNK 16 20 20 20 20 Wire Color Gauge PNK PNK PNK PNK PNK 16 20 20 20 20 1 SP-5 C5-A C7-A C9-A C11-A Destination 2 3 --- ----- ----- ----- ----- --- 4 ----------- 5 ----------- Destination 2 3 --- ----- ----- ----- ----- --- 4 ----------- 5 ----------- Destination 2 3 --- ----- ----- ----- --- 4 ---------
SP-7 1 2 3 MAF/AEMnet +12V Splice Wire Color Gauge PNK PNK RED 20 20 20 SP-8 1 2 3 4 5 1 P1-9A C14-C C28-3 Destination 2 3 --- ----- ----- --- 4 ------- 5 ------- Description MAF/AEMnet 5A Fuse MAF +12V AEMnet +12V Battery Power Splice Wire Color Gauge RED RED RED RED RED 10 14 14 20 20 Destination 1 2 3 4 1' flying lead from splice 1AA --- --- --2AA --- --- --6AA --- --- --7AA --- --- --- 5 --------- Rev A, 2013/02/05 Description Battery Pos (+) flying lead EFI-1 30A Fuse EFI-2 30A Fuse S
Infinity ECU Pinout Infinity - 10, P/N 30-7100/01 Dedicated Dedicated and not reconfigurable Assigned Assigned but reconfigurable Available Available for user setup Not Applicable Not used in this configuration Required Required for proper function Infinity Pin Hrdwr Ref. Hardware Specification C1-1 LowsideSwitch_4 Lowside switch, 4A max, NO internal flyback diode. C1-2 LowsideSwitch_5 C1-3 LowsideSwitch_6 C1-4 UEGO 1 Heat C1-5 UEGO 1 IA C1-6 UEGO 1 IP Pumping Current signal.
C1-19 AGND_1 Dedicated analog ground Analog 0-5V sensor ground C1-20 AGND_1 Dedicated analog ground Analog 0-5V sensor ground C1-21 Crankshaft Position Sensor Hall 10K pullup to 12V. Will work with ground or floating switches. See Setup Wizard page Cam/Crank for options. C1-22 Camshaft Position Sensor 1 Hall 10K pullup to 12V. Will work with ground or floating switches. See Setup Wizard page Cam/Crank for options. C1-23 Digital_In_2 10K pullup to 12V.
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. 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.
C1-59 Injector 3 Saturated or peak and hold, 3A max continuous Injector 3 C1-60 Power Ground Power Ground Connect directly to battery ground C1-61 +12V 12 volt power from relay 12 volt power from relay. Relay must be controlled by +12V Relay Control signal, pin C1-29 above.
C2-12 C2-13 C2-14 C2-15 C2-16 C2-17 C2-18 C2-19 C2-20 Analog_In_17 Analog_In_18 Analog_In_19 Analog_In_Temp _4 Analog_In_Temp _5 Analog_In_Temp _6 Analog_In_13 Analog_In_14 Analog_In_15 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 Input Functions page for input selection.
C2-31 AGND_2 Dedicated analog ground Analog 0-5V sensor ground C2-32 AGND_2 Dedicated analog ground Analog 0-5V sensor ground 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. 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.
C2-52 Coil 8 25 mA max source current 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. C2-53 Coil 9 25 mA max source current 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. C2-54 Coil 10 25 mA max source current 0-5V Falling edge fire. DO NOT connect directly to coil primary.
12 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.
