| Number | X-pin, color | Description |
|---|---|---|
| X126 | 4 -pin, Black | Connector High pressure switch |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Magnetic clutch voltage supply | Heating and A/C control module |
| 2 | M | Ground | Ground point |
| 3 | E | Terminal 85 control | Auxiliary fan high speed relay |
| 4 | A | Signal, magnetic clutch A/C compressor | A/C compressor |