O2 sensor connector wiring codes and cable colors for TWC downstream and upstream sensors, Engine 132 and M660/M132.

Wiring diagram table showing O2 sensor connector codes G3/1x1 and G3/2x1 with cable color assignments and notes.

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See all Powertrain figures for the Fortwo (450), or browse the full figure library. Part numbers and callouts are community-sourced and cross-referenced against the manuals — confirm with your VIN before ordering.