Front Oxygen Sensor (Gas) Connector End View
SENSOR-OXYGEN-FRONT - BLACK 4-WAY (GAS)
| CAV | CIRCUIT | FUNCTION |
| 1 | A142 18DG/OR | FUSED ASD RELAY OUTPUT (1.6L) |
| 1 | Z902 18BK | GROUND (EXCEPT 1.6L) |
| 2 | K99 18OR/RD | O2 1/1 HEATER CONTROL (1.6L) |
| 2 | K99 18BR/OR | O2 1/1 HEATER CONTROL (EXCEPT 1.6L) |
| 3 | K902 20BR/DG | O2 1/1 GROUND (1.6L) |
| 3 | K902 20DB/DG | O2 RETURN (EXCEPT 1.6L) |
| 4 | K41 20BK/DG | O2 1/1 SIGNAL |