Suzuki K6a Engine Ecu Pinout Better ✯
If your K6A ECU has a gray label and a part number ending in "56B4", it has an immobilizer. The ECU will not fire injectors unless it receives a handshake from the Suzuki security module (located behind the glovebox). In this case, Pins B17 and B18 are the serial data lines to the immobilizer. You cannot bypass this via the pinout—you must either:
Applicable to: Suzuki Alto Works HA11S (Non-Intercooled often), Wagon R. suzuki k6a engine ecu pinout better
If you are swapping a manual transmission engine into a different car, you usually ignore this plug or only need the Reverse Light wiring. If your K6A ECU has a gray label
The Cappuccino uses a specific ECU (denso part numbers starting with 33920-73...). Note: This is for the Intercooled/Turbo version. The Cappuccino uses a specific ECU (denso part
| Pin # | Function | Typical Wire Color | Notes | | :--- | :--- | :--- | :--- | | B1 | Injector #1 | Yellow/Blue | Ground pulse from ECU | | B2 | Injector #2 | Yellow/Red | Ground pulse from ECU | | B3 | Injector #3 | Yellow/Green | Ground pulse from ECU | | B5 | Tachometer (Reference) | Blue/White | Often used for external tach | | B10 | ISC Valve (Stepper Motor) | Green | Idle Speed Control | | B15 | Ignition Coil Trigger | White | To Igniter/Coil Pack | | B16 | Ignition Coil Trigger 2 | White/Red | (If Dual Coil/Coppo) |
| Pin | Function | Note | | :--- | :--- | :--- | | 1 | Sensor Ground | (SG) | | 2 | Sensor +5V | (VC) Reference voltage. | | 3 | MAP Signal | (PIM) Boost/Vacuum signal. | | 4 | TPS Signal | (VTA) | | 5 | ECT (Water Temp) | (THW) | | 6 |