Haltech Elite 550 ECU Pinout & Wiring Diagram Guide
Technical pinouts, connector assignments, and suggested wiring layouts for the Haltech Elite 550 ECU.
To design a professional, custom harness utilizing the Haltech Elite 550 ECU, launch the interactive Wiringly canvas. 👉 Start Harness Design with Wiringly
Component Specifications​
The Haltech Elite 550 ECU is a premium control unit designed for high-performance motorsport and automotive applications.
| Specification | Details |
|---|---|
| Component Name | Haltech Elite 550 ECU |
| Manufacturer | Haltech |
| Part Number | HT-150400 |
| Category | Control unit |
| Dimensions | 127mm (W) x 127mm (H) x N/A (D) |
Connectors & Pin Assignments​
Below is the structured electrical wiring pinout map for the Haltech Elite 550 ECU. Wiringly automatically tracks suggested wire specifications and color collections from this master component.
Superseal 1.0, 34POS, COD 1 (2-1437285-3)​
Connector Specifications​
| Property | Details |
|---|---|
| Connector Part Number | 2-1437285-3 |
| Compatible Terminals | 3-1447221-4, 3-1447221-3 |
| Pin | Function/Description | Suggested Wire Color |
|---|---|---|
| 1 | DPO 2 | Violet with Brown Stripe |
| 2 | AVI 1 | Grey with Yellow Stripe |
| 3 | Ignition 1 | Yellow with Black Stripe |
| 4 | Ignition 2 | Yellow with Red Stripe |
| 5 | Ignition 3 | Yellow with Orange Stripe |
| 6 | Ignition 4 | Yellow with Green Stripe |
| 7 | Not Available | Red |
| 8 | Not Available | Red |
| 9 | 5V Out | Orange |
| 10 | Battery Ground | Black |
| 11 | Signal Ground | Black with White Stripe |
| 12 | DPI | Grey |
| 13 | Not Available | Red |
| 14 | Throttle position Sensor | Grey |
| 15 | AVI 3 (MAP) | Yellow |
| 16 | CAN H | White |
| 17 | CAN L | Blue |
| 18 | DPO 1 | Violet with Black Stripe |
| 19 | Injector 1 | Blue |
| 20 | Injector 2 | Blue with Black Stripe |
| 21 | Injector 3 | Blue with Brown Stripe |
| 22 | Injector 4 | Blue with Red Stripe |
| 23 | DPO 3 | Violet with Red Stripe |
| 24 | DPO 5 (Fuel Pump Output) | Black with Yellow Stripe |
| 25 | DPO 4 | Violet with Orange Stripe |
| 26 | 12V ECU | Red with Blue Stripe |
| 27 | Not Available | Red |
| 28 | Not Available | Red |
| 29 | Air Temperature Sensor | Grey |
| 30 | Coolant Temperature Sensor | Violet |
| 31 | Crank + | Yellow |
| 32 | Cam + | Yellow |
| 33 | Crank - | Green |
| 34 | Cam - | Green |
Harness Integration in Wiringly​
Wiringly simplifies the process of creating complete, error-free wiring schematics. Using our interactive digital canvas, you can drop the Haltech Elite 550 ECU directly into your project, automatically load these pin assignments, and connect them to your power distribution units or engine control units. If you are new to the platform, we recommend starting with our Quick Start Guide.
The platform tracks your wire colors, gauges, and terminal types automatically, compiling a complete bill of materials (BOM) and cutting list for your physical build.