| Number | X-pin, colour | Description |
|---|---|---|
| X290 | 9 -pin, Black | Plug connector Thermal switch (LA Japan) |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | M | Ground | Ground connector |
| 3 | Not used | ||
| 4 | E | Cat thermosensor right bank, connection 1 | Right catalytic converter thermal sensor |
| 5 | A | CARB signal | Light module |
| 6 | E | Cat thermosensor left bank, connection 1 | Left catalytic converter thermal sensor |
| 7 | E | Cat thermosensor right bank, connection 2 | Right catalytic converter thermal sensor |
| 8 | E | Terminal 15 | Fuse F21 |
| 9 | E | Cat thermosensor left bank, connection 2 | Left catalytic converter thermal sensor |