The SD 22M connector is an unsealed 22 position connector with male terminals. They are made by the OEM supplier. There are 2 versions, with slightly different keying on the outside of the connector, as shown below. The ‘A’ keying has keys on only the top side of the connector, while the ‘B’ keying has keys on both the top and bottom of the connector. They are used in the engine harness of the 2G, connecting under the dash.