The part number, typically starting with "33920-", is your main reference. Different suffixes indicate different models, years, and transmission types.
Thick wires grounded directly to the engine block.
When repacking a loom for a standalone swap or a bare-minimum start, you do not need all 60+ wires. Focus on these four pillars to get the engine running. 1. Power Supply & Grounding
Wire to a fused 10A constant battery source. suzuki k6a engine ecu pinout repack
The K6A ECU controls essential engine functions through specific terminal assignments. Below are some of the most critical pins for wiring or "repacking" projects: Wire Color Circuit / Function PNK (Pink) Fuel Injector No. 1 Fuel Injector No. 2 Oxygen Sensor-2 (Heated) Ground for A/F (Air/Fuel) Sensor Heater Heater Output of A/F Sensor Ground for Throttle Position Sensor 12V Serial Communication (Data Link Connector) Technical Deep Dive Sensor Mapping
Used for checking diagnostic trouble codes (DTCs) and viewing live sensor data. Step-by-Step Repack Workflow
| Pin Number | Signal Name | Description | | --- | --- | --- | | 1-4 | Injector Control | Fuel injector control signals | | 5-8 | Ignition Control | Ignition coil control signals | | 9-12 | Sensor Ground | Ground for engine sensors | | 13-16 | Battery Voltage | Battery voltage supply | | 17-20 | Throttle Position | Throttle position sensor signals | | 21-24 | Engine Speed | Engine speed sensor signals | The part number, typically starting with "33920-", is
This technical article breaks down the essential wiring pins, splits them into functional groups, and outlines a step-by-step methodology to repack your harness safely and cleanly. Understanding the Suzuki K6A ECU Architecture
Mid-2000s Jimny (JB23W), Carry Truck (DA62T/DA63T), Kei.
The Suzuki K6A engine is an aluminum-block, chain-driven 3-cylinder engine widely found in Kei cars like the Suzuki Jimny, Wagon R, Alto, and various Multicab configurations. Because these engines were manufactured across different generations (including naturally aspirated and turbocharged K6A-T versions), their factory ECU pinouts vary between 26-pin, 34-pin, and multi-plug configurations. When repacking a loom for a standalone swap
Fine-tunes air-to-fuel ratios based on air density. 3. Actuators & Outputs
For a comprehensive feature on the Suzuki K6A engine ECU pinout
Changes resistance based on engine temperature. Dictates cold-start enrichment and radiator fan activation.