Fiat 5-Pin A/C Control Panel Connector – OEM 13559 | 3.5/6.3mm Mixed Pitch
Direct OEM-specification replacement for the Fiat 5-pin A/C control panel harness connector. Cross-references OEM part number 13559. Features a mixed terminal pitch configuration: 2 blade terminals at 6.3mm (high-current A/C power circuits) and 3 socket terminals at 3.5mm (signal and control circuits). Used in A/C control panel and HVAC harnesses across Fiat platforms. Available bare or with 15cm pre-wired leads.
| Terminal Group | Pitch | Quantity | Function |
|---|---|---|---|
| Blade terminals (B) | 6.3mm | 2 | A/C compressor clutch power and ground (high-current) |
| Socket terminals (S) | 3.5mm | 3 | A/C control signal, temperature sensor, and diagnostic |
| Pin | Function | Failure Symptom if Corroded |
|---|---|---|
| 1 (6.3mm B) | A/C compressor clutch power (+12V) | Compressor not engaging, no cooling |
| 2 (6.3mm B) | A/C compressor clutch ground | Compressor not releasing |
| 3 (3.5mm S) | A/C control signal from panel | A/C not responding to panel switch |
| 4 (3.5mm S) | Temperature sensor signal | Incorrect temperature reading, A/C cycling fault |
| 5 (3.5mm S) | Diagnostic / feedback signal | A/C fault code logged in BCM |
| Attribute | Detail |
|---|---|
| Pin Count | 5-Pin (2B + 3S) |
| OEM Part Number | 13559 |
| Terminal Pitch | 6.3mm (blade) + 3.5mm (socket) — mixed |
| Housing Material | Nylon (PA66) |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | A/C control panel harness, HVAC harness |
| Compatible Brands | Fiat, Alfa Romeo, Lancia |
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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5 Pin Connectors
