AEM 30-3805 Universal V8 Core Harness - Manual (Page 24)

AEM Infinity Harness Manuals 24
© 2014 AEM Performance Electronics
9 3805 Core Harness Schematic
A schematic for the universal core harness is included HERE
10 Infinity-8/10/12 ECU Pinout
Infinity Pin Hrdwr Ref. Hardware Specification Notes
C1-1 LowsideSwitch_4 Lowside switch, 4A max, NO
internal flyback diode. Normally used as A/C Relay Control output.
C1-2 LowsideSwitch_5 Lowside switch, 4A 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 Lowside switch, 4A 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
"LS6_Duty [%]" for activation.
C1-4 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.
C1-5 UEGO 1 IA Trim Current signal. Connect to pin 2 of Bosch
UEGO sensor
C1-6 UEGO 1 IP Pumping Current signal. Connect to pin 6 of Bosch
UEGO sensor
C1-7 UEGO 1 UN Nernst Voltage signal. Connect to pin 1 of Bosch
UEGO sensor
C1-8 UEGO 1 VM Virtual Ground signal. Connect to pin 5 of Bosch
UEGO sensor.
C1-9 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.
C1-10 +12V_R8C_CPU Dedicated power management CPU Full time battery power. MUST be powered before
the ignition switch input is triggered (See C1-65).
C1-11 Coil 4 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.
C1-12 Coil 3 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.