| Wire Color | Function | Voltage/Behavior | Destination | | :--- | :--- | :--- | :--- | | | Switched 12V Power | 10-16V DC (Max 2A draw) | 12V Ignition source (Fuel pump relay or switched fuse box) | | Black | Power Ground | 0V | Chassis ground (Clean, unpainted bolt) | | Yellow | Analog Output 1 (0-5V) | Linear: 0V = AFR 10.0 / 5V = AFR 20.0 | Factory ECU Narrowband input (Optional) or Standalone ECU Analog 0-5V input | | White | Serial Asynchronous (RS-232) | 0-5V TX Data | Do NOT wire to ECU. Use for firmware updates or CAN converter. | | Brown | Analog Output 2 (Programmable) | 0-5V (User configurable via gauge menu) | Data logger, Shift light controller, or Boost controller | | Green | RPM Input (Optional) | Triggered by 12V square wave | Coil negative terminal or Tachometer output on ECU |
The White wire transmits at 9600 baud, 8 data bits, no parity. Do not connect this to a 5V CAN bus. Aem Wideband 35 8460 Wiring Diagram REPACK
The AEM 30-8460 is a 6-in-1 UEGO (Universal Exhaust Gas Oxygen) controller that displays AFR, Boost, Vacuum, RPM, and other parameters. When performing a (reinstalling a previously used unit or correcting a faulty wiring job), you must verify each connection. Incorrect wiring is the #1 cause of sensor drift, blown fuses, and erratic readings. | Wire Color | Function | Voltage/Behavior |
Given the specificity and variability in vehicle applications, the following general instructions serve as a guide: Do not connect this to a 5V CAN bus
This write-up is for informational purposes. Always verify with the official AEM manual for your specific revision. Improper wiring can damage the controller, sensor, or vehicle ECU.
Here is a repackaged version of the AEM Wideband 35 8460 wiring diagram for easy reference: