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33472-1601 / 33482-1601 / 33472-1740 Automotive 16-Pin Headlight Connector — Ford Focus / Mondeo / Edge / Fiesta Lamp Socket
33472-1601 / 33482-1601 / 33472-1740 Automotive 16-Pin Headlight Connector Ford Focus / Mondeo / Edge / Fiesta Lamp Socket
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33472-1601 / 33482-1601 / 33472-1740 Automotive 16-Pin Headlight Connector — Ford Focus / Mondeo / Edge / Fiesta
The 33472-1601, 33482-1601, and 33472-1740 are 16-pin automotive headlight connector housings for Ford Focus, Mondeo, Edge, and Fiesta LED headlamp assembly wiring harnesses. These Molex-series connectors are the sealed interface between the vehicle wiring harness and the headlamp assembly’s integrated LED drivers, adaptive leveling motors, and sensor circuits. The three part numbers represent male/female variants and minor revision differences within the same 16-pin headlamp connector family used across Ford’s global vehicle platforms.
Ford LED headlamp connector failure is a documented issue on Focus Mk3/Mk4, Mondeo Mk5, and Edge Mk2 vehicles — moisture ingress through degraded wire seals causes terminal corrosion that triggers headlamp warning lights, partial LED failure, and B-code body control DTCs. The 16-pin connector is accessible from the engine bay without removing the headlamp assembly, making connector replacement a practical first repair step.
Key Specifications
| Parameter | Value |
|---|---|
| OEM Part Numbers | 33472-1601 / 33482-1601 / 33472-1740 |
| Pin Count | 16-pin |
| Sealing | Waterproof (sealed) |
| Housing Material | PA66 glass-filled nylon |
| Terminal Material | Tin-plated copper alloy |
| Operating Temperature | -40°C to +125°C |
| Compatible Platforms | Ford Focus, Mondeo, Edge, Fiesta (LED headlamp variants) |
| Compliance | RoHS |
Compatible Ford Models
| Model | Generation | Notes |
|---|---|---|
| Focus | Mk3 (C346), Mk4 (DEH) | LED headlamp variants |
| Mondeo | Mk5 (CD391) | LED / adaptive headlamp |
| Edge | Mk2 (CD539) | LED headlamp |
| Fiesta | Mk7 (B479) | LED headlamp variants |
| Kuga | Mk2 (CBS) | LED headlamp variants |
16-Pin Headlamp Connector — Circuit Breakdown
- LED driver power/ground — high-current circuits (up to 5A) for the LED driver module power supply
- Low beam / high beam / DRL control — separate control signals for each lighting function from the BCM
- Adaptive leveling motor — 2–3 circuits for the stepper motor and position feedback sensor
- LIN bus communication — 1–2 circuits for the headlamp module’s LIN bus interface with the BCM
- Turn signal and position light — 2–3 circuits for integrated turn signal and position light functions
- Temperature sensor — 1–2 circuits for LED junction temperature monitoring
Frequently Asked Questions
Q: What Ford-specific DTCs indicate a headlamp connector fault?
Common Ford DTCs associated with headlamp connector faults include: B1A43 (headlamp control module circuit fault), B1A44 (headlamp leveling motor circuit), U3000 (control module internal fault — often caused by power supply interruption from a corroded connector), and B10D7 (exterior lighting circuit fault). Use Ford IDS, FDRS, or a compatible OBD2 scanner with Ford-specific DTC support to read and interpret these codes.
Q: How do I access the headlamp connector on Ford Focus Mk3/Mk4?
The headlamp connector is accessible from the engine bay without removing the headlamp assembly. Open the bonnet, locate the headlamp assembly, and trace the wiring harness to the connector at the rear of the headlamp. On Focus Mk3, the connector is typically accessible after removing the air filter box or battery cover. On Focus Mk4, the connector is more accessible but may require removing a plastic trim panel. The connector locking tab is released by pressing a button or lever — do not force the connector.
Q: What is the difference between 33472-1601 and 33472-1740?
The 33472-1601 and 33472-1740 are revision variants of the same 16-pin headlamp connector — the four-digit suffix indicates the revision level. Both variants use the same 16-pin mating interface and are functionally interchangeable for wiring harness repair purposes. The 33482-1601 is the mating counterpart (male vs. female). Always verify the gender and revision of your original connector by checking the part number stamped on the housing before ordering.
