Whether you are engine-swapping a Cappuccino, installing a standalone ECU in an Alto Works, or simply diagnosing a no-start condition in a micro-van, understanding the ECU pinout is the first critical step. Video — Bangla Choti
This guide covers the most common configuration for the K6A: the late-model electronically controlled automatic transmission (EC-AT) setup found in vehicles like the Suzuki Cappuccino (EA11R) and the Every/Carry series. Verification is Mandatory. Suzuki changed wiring harnesses and ECU part numbers frequently between model years (e.g., 1992 vs. 1998) and trims (e.g., non-turbo vs. turbo). The pinouts below are reference standards. Always verify pin functions using a multimeter and specific wiring diagrams for your exact vehicle model year to prevent damage to your ECU or wiring harness. Identifying Your ECU Before digging into pins, locate the ECU. In most K6A applications (Cappuccino, Alto, Wagon R), it is located behind the center console or beneath the passenger side footwell carpet. Bus Stop Full Movie Telugu Movierulz Install [BEST]
| Pin No. | Wire Color (Typ) | Function | Description | | :--- | :--- | :--- | :--- | | | Black/White | Main Relay Power | Battery Voltage (12V+) when Ignition is ON. | | A2 | Black | ECU Ground | Chassis Ground / Sensor Ground. | | A3 | Black/Yellow | Ignition Switch Power | 12V+ from Ignition switch (Start/Run). | | A6 | - | Check Engine Light (MIL) | Grounds the bulb to illuminate the dash light. | | A10 | - | Diagnostic (K-Line) | Connects to OBD1 Diagnostic Connector. | | A15 | - | Fuel Pump Relay | Grounds the fuel pump relay to activate the pump. | | A21 | - | A/C Signal | Input from A/C amplifier (requests idle-up). | Connector B (Sensors & Inputs) This is the "brain" input side, handling readings from the engine bay.
The Suzuki K6A engine is a legend in the kei-car world. Found under the hoods of the Suzuki Cappuccino, Alto Works, Cervo, and the popular Suzuki Carry/Every vans, this 660cc powerhouse is known for its high-revving nature and tunability.
| Pin No. | Wire Color (Typ) | Function | Description | | :--- | :--- | :--- | :--- | | | Yellow | Crank Angle Sensor | Ne Signal (Engine RPM). Critical for spark. | | B2 | - | Cam Angle Sensor | G Signal (Cylinder ID). | | B3 | - | Vehicle Speed Sensor | Reed switch input from speedometer. | | B8 | Yellow/Blue | Throttle Position (TPS) | Voltage signal 0.5V - 4.5V. | | B10 | White | Oxygen Sensor | O2 Sensor signal (Heated). | | B12 | - | MAP Sensor | Manifold Absolute Pressure signal. | | B13 | - | Intake Air Temp (IAT) | Resistance changes with air temp. | | B14 | - | Engine Coolant Temp (ECT) | Resistance changes with coolant temp. | | B19 | - | A/C Pressure Switch | Cuts A/C if pressure is too high. | | B20 | - | Power Steering Pressure | Increases idle when turning the wheel. | Connector C (Outputs & Actuators) This connector drives the engine components.