Features a 3-plug or 4-plug ECU.
This pinout represents a standard 1999-2005 Suzuki K6A turbo application (32-pin + 16-pin connector layout), commonly found in Suzuki Jimny JB23 or high-spec Kei vehicles. Main Connector (32-Pin Connector) : Fuel Injector #1 (Ground Signal) : Fuel Injector #2 (Ground Signal) : Fuel Injector #3 (Ground Signal) : Ignition Coil #1 (Signal) : Ignition Coil #2 (Signal) : Ignition Coil #3 (Signal) : Idle Air Control Valve ( IACcap I cap A cap C : Fuel Pump Relay Control (Ground) : Main Relay Control A10cap A 10 : Oxygen Sensor Heater A11cap A 11 : Boost Control Solenoid (Turbo Models) A12cap A 12 : Check Engine Light (CEL) Sensor & Power Connector (16-Pin Connector) : MAP Sensor Signal (Manifold Absolute Pressure) : Throttle Position Sensor (TPS) Signal : Water Temperature Sensor Signal : Intake Air Temperature ( IATcap I cap A cap T ) Sensor Signal : Oxygen Sensor Signal : Crankshaft Position Sensor ( CKPcap C cap K cap P : Camshaft Position Sensor ( CMPcap C cap M cap P : Knock Sensor Signal : +5Vpositive 5 cap V Sensor Reference B10cap B 10 : Sensor Ground B11cap B 11 : +12Vpositive 12 cap V Battery Power B12cap B 12 : Ignition Switch Power ( Igncap I g n B13cap B 13 : Vehicle Speed Sensor ( VSScap V cap S cap S 3. Key Wiring Considerations for Swaps
Because there are multiple versions of the K6A (naturally aspirated vs. turbo, different generations), it is vital to match your ECU's part number (e.g., ) with the correct documentation. Service Manuals: The Suzuki K6A Technical/Repair Manual
) and turbocharged versions. The ECU acts as the brain, controlling fuel injection, ignition timing, boost pressure (on turbo models), and various emissions systems based on data from several sensors. Types of K6A ECUs suzuki k6a engine ecu pinout high quality
The pins marked (AT only) are not used in manual transmission vehicles. Attempting to use an automatic ECU in a manual vehicle may require specific pin modifications to bypass neutral safety or shift position checks.
Armed with your ECU's part number and this guide, here is a practical workflow for applying high-quality pinout information to your project.
Ground-side switching for the fuel injectors. Features a 3-plug or 4-plug ECU
Heavy-duty grounds that connect directly to the engine block or vehicle chassis. They sink the current used by the injectors and ignition coils. 2. Vital Engine Sensors (Inputs)
Determines cold-start enrichment and radiator fan activation.
Pins for Fuel Injectors No. 1, 2, and 3, plus the fuel pump relay. Key Wiring Considerations for Swaps Because there are
For high-resolution schematics and full technical manuals, refer to these authoritative sources: Detailed Wiring Diagrams
The Crank and Cam sensor signals are incredibly sensitive to electrical "noise." If you are extending these wires for a swap, use to prevent the engine from misfiring or cutting out at high RPMs. The "Check Engine" Light Trick