Ecu Design Pinout Work |best| -
ECU pinout is a specialized reference map that identifies the specific function of every terminal (pin) on an Electronic Control Unit's connector. In ECU design and troubleshooting, this diagram is the "master key" for connecting power, grounds, sensors, and actuators to the vehicle's brain. www.soulinconn.com Core Components of ECU Pinouts
| Pin | Signal | Type | Internal Driver | Notes | |-----|--------|------|----------------|-------| | 1 | Injector 1 | Low-side out | INJ1 | 4A peak, 1A hold | | 2 | Injector 2 | Low-side out | INJ2 | | | 3 | Injector 3 | Low-side out | INJ3 | | | 4 | Injector 4 | Low-side out | INJ4 | | | 5 | Ignition 1 | Logic out | IGN1 | 5V logic to smart coil | | 6 | Ignition 2 | Logic out | IGN2 | | | 7 | +12V main | Power input | – | 10A fuse | | 8 | ECU ground | Power ground | – | Direct to battery/engine | | 9 | Sensor ground | Analog return | – | Must not carry power current | | 10 | 5V VREF | Sensor supply | – | MAP, TPS, etc. | | 11 | MAP sensor | Analog 0–5V | AN1 | 1k pull-up disabled | | 12 | Coolant temp | Analog pull-up | AN2 | Internal 2.49k pull-up | | 13 | CAN High | Communication | CAN1 | 120 ohm termination if end node | | 14 | CAN Low | Communication | CAN1 | | ecu design pinout work
- Red/Orange: Switched 12V
- Black: Power ground
- Dark Green: Sensor ground
- Pink/Yellow: Ignition outputs
- Blue/White: Injector outputs
- Brown: Sensor signal (0-5V)