AEM 30-6040 Series 2 Plug & Play EMS User Manual
Page 7
Page 7 of 11
Connection Diagram for EMS P/N 30-6040
Pin #
OBD1 Honda / Acura
AEM EMS 30-6040
I/O
Availability
A1
Injector 1
Injector 1
Output
PnP for Injector 1
A2
Injector 4
Injector 4
Output
PnP for Injector 4
A3
Injector 2
Injector 2
Output
PnP for Injector 2
A4
VTEC Solenoid Valve
High Side Driver 1 Output
PnP for VTEC Solenoid
A5
Injector 3
Injector 3
Output
PnP for Injector 3
A6
Primary 02 Heater Control
Injector 6
Output
Avail, Injector Gnd, 1.5A max
A7
Fuel Pump Relay
Low Side Driver 11 Output
PnP for Fuel Pump Relay
A8
Fuel Pump Relay (Accord/Prelude Only)
Injector 5
Output
Avail, Injector Gnd, 1.5A max
A9
Idle Air Control Valve
PW 1
Output
PnP for Idle Air Control Valve
A10
---
Low Side Driver 2 Output
Avail, Switched Gnd, 1.5A max
A11
EGR Solenoid (Accord/Prelude Only)
Injector 10
Output
Avail, Injector Gnd, 1.5A max
A12
Radiator Fan Control (Except Prelude)
Low Side Driver 12 Output
PnP for Radiator Fan
A13
Malfunction Indicator Light
Low Side Driver 10 Output
Avail, Switched Gnd, 1.5A max
A14
---
Injector 8
Output
Avail, Injector Gnd, 1.5A max
A15
A/C Clutch Relay
Low Side Driver 6 Output
PnP for A/C Clutch Relay
A16
Alternator Control (Except Accord/Prelude)
Injector 7
Output
Avail, Injector Gnd, 1.5A max
A17
IAB Control Solenoid (Accord/Integra Only)
Idle #2
Output
Avail, Ground / +12V, 1.5A max
A18
---
Low Side Driver 8 Output
Avail, Switched Gnd, 1.5A max
A19
---
Idle #4
Output
Avail, Ground / +12V, 1.5A max
A20
EVAP Purge Control Solenoid
Low Side Driver 4 Output
Avail, Switched Gnd, 1.5A max
A21
Ignition Control Module
Coil 1
Output
PnP for Ignition Control Module
(12/0V Rising edge)
A22
Ignition Control Module
CAN1L
---
Dedicated
A23
Power Ground 1
Power Ground
Both
Dedicated
A24
Power Ground 2
Power Ground
Both
Dedicated
A25
Power Source 1
+12V Switched
Both
Dedicated
A26
Logic Ground 1
Power Ground
Both
Dedicated