MaxxECU Expansion Module Pinout, Connector & Wiring Guide

Detailed connector configurations, pin mappings, and electrical schematic specifications for the MaxxECU Expansion Module. This guide helps you integrate the MaxxECU Expansion Module expanders into your wiring loom design using Wiringly.
You can add the MaxxECU Expansion Module directly onto your harness drawing using our interactive digital builder. Wiringly automatically populates all pinout mappings, connector bodies, and suggested colors. 👉 Start Harness Design with Wiringly
Component Overview & Specs​
The MaxxECU Expansion Module is a professional-grade expanders manufactured by MaxxECU (P/N: Expansion Module). It is specifically engineered to handle high-performance conditions in automotive and motorsport environments.
| Technical Specification | Value / Details |
|---|---|
| Component Name | MaxxECU Expansion Module |
| Manufacturer | MaxxECU |
| Part Number | Expansion Module |
| Category | Expanders |
| Dimensions | 80mm (W) x 138mm (H) x N/A (D) |
Connector Configurations & Pin Assignment Maps​
The electrical connections for the MaxxECU Expansion Module are organized by physical connectors. Wiringly tracks all compatible mating connectors, terminal pins, wire seals, and wire specifications.
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 | Pulse 1+ | - |
| 2 | Pulse 2+ | - |
| 3 | Pulse 3+ | - |
| 4 | Pulse 4+ | - |
| 5 | Sensor GND | - |
| 6 | Sensor GND | - |
| 7 | CAN L | - |
| 8 | CAN H | - |
| 9 | 5V Sensor Supply | - |
| 10 | AIN 1 | - |
| 11 | AIN 2 | - |
| 12 | AIN 3 | - |
| 13 | AIN 4 | - |
| 14 | AIN 5 | - |
| 15 | AIN 6 | - |
| 16 | Sensor GND | - |
| 17 | 12V Supply 1 | - |
| 18 | AIN 7 | - |
| 19 | AIN 8 | - |
| 20 | AIN 9 | - |
| 21 | AIN 10 | - |
| 22 | AIN 11 | - |
| 23 | AIN 12 | - |
| 24 | Sensor GND | - |
| 25 | 12V Supply 2 | - |
| 26 | OUT 8 | - |
| 27 | OUT 7 | - |
| 28 | OUT 6 | - |
| 29 | OUT 5 | - |
| 30 | OUT 4 (H-BRIDGE 2) | - |
| 31 | OUT 3 (H-BRIDGE 2) | - |
| 32 | OUT 2 (H-BRIDGE 1) | - |
| 33 | OUT 1 (H-BRIDGE 1) | - |
| 34 | Engine GND | - |
Harness Design & Schematic Software​
Wiringly simplifies the process of creating complete, error-free wiring schematics. Using our interactive digital canvas, you can drop the MaxxECU Expansion Module directly into your project, automatically load these expanders pin assignments, and connect them to your power distribution units or engine control units.
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.
- To browse other catalog entries, visit our Component Pinout Guide.
- If you are new to the platform, we recommend starting with our Quick Start Guide.
- For wiring advice, check out the Wire Management Guide.