Suzuki K6a Engine Ecu Pinout Repack 🆕 💫

A ground-switching output that activates the fuel pump relay for 2–3 seconds at key-on, and continuously while cranking/running.

The Suzuki K6A is a legend in the world of kei cars, powering everything from the Alto and Jimny to the Wagon R . If you're doing an engine swap or troubleshooting a performance issue, finding a clear "repack" or breakdown of the ECU pinout is essential for a clean wiring job.

Low-side ground switch that activates the external fuel pump relay upon key-on. 3. Engine Sensor Feedback (Inputs)

One night, buried in a Japanese-language forum via Google Translate, he found a thread titled: suzuki k6a engine ecu pinout repack

Usually features a 2-plug or 3-plug yellow/gray plastic connector configuration (26-pin + 22-pin or similar).

Late Jimny JB23 (Types 7–10), Carry DA65T/DA16T.

Communication, immobilizer & switches

Repacking the ECU pinout requires a thorough understanding of the existing pinout and the desired changes. Here's a general outline of the process:

Grey and black plastic high-density multi-plug connectors (often 34-pin + 34-pin or 26/34/22 split). 3. Late Generation (Electronic Throttle / Drive-by-Wire) Vehicles: Post-2010 Suzuki vehicles.

Identify and label the standard sensor leads running from the block to the computer plugs. A ground-switching output that activates the fuel pump

. Accurate wiring of the CKP (Crank) and CMP (Cam) sensors is vital for the ECU to establish timing. Fuel & Ignition

| Pin | Function | Signal / Color (typical) | Notes | |------|-----------------------------|------------------------------|------------------------------| | A1 | Battery +12V | B/R | Main backup power | | A2 | Ignition switch IG1 | B/W | Power to ECU | | A3 | Main relay control | G/Y | Switched ground | | A4 | Ground | B | Power ground | | A5 | Ground | B | Sensor ground | | A6 | Injector cylinder 1 | R | Ground pulse | | A7 | Injector cylinder 2 | R/W | Ground pulse | | A8 | Injector cylinder 3 | R/B | Ground pulse | | A9 | Ignition output coil 1 | G | To igniter | | A10 | Ignition output coil 2/3 | G/W | To igniter | | A11 | Tachometer output | B/Y | 1 pulse per rev | | A12 | Check engine light | Lg/R | Ground to turn on | | A13 | Fuel pump relay | B/R | Switched ground | | A14 | Idle air control (IAC) | Lg/B | Stepper motor coil | | B1 | MAP sensor 5V ref | V | 5V output | | B2 | MAP sensor signal | Lg | 0.5–4.5V | | B3 | Engine coolant temp | G/R | Thermistor input | | B4 | Intake air temp | G/B | Thermistor input | | B5 | Throttle position signal | R/Y | 0.2–4.8V | | B6 | O2 sensor (front) | B/W | 0.1–0.9V | | B7 | Knock sensor | B | Shielded input | | B8 | Camshaft position (CMP) | Y | 0–5V pulse | | B9 | Crankshaft position (CKP) | Y/B | 0–5V pulse | | B10 | Vehicle speed sensor | V/W | 0–12V pulse | | B11 | Power steering switch | Lg/R | Ground active | | B12 | A/C request | Lg | +12V request | | B13 | Serial data (OBD) | W/R | K-line or CAN L | | B14 | Serial data ground | B | OBD ground |

Keep Alive): Supplies continuous voltage to retain ECU memory and fault codes. Low-side ground switch that activates the external fuel

If you are working on a Suzuki K6A engine—commonly found in Suzuki Cappuccinos, Suzuki CARRY trucks, and various Kei-class mini vehicles—you may eventually face the need to inspect, test, or "repack" the ECU connections.

Where to get accurate schematics / verification