Ford 4-Pin Headlamp / Sensor Wire Harness Connector – OEM 31068-1011 / 31068-1010 / 31068-1040
Direct OEM-specification replacement for the Ford 4-pin headlamp and sensor wire harness connector. Cross-references Ford/TE Connectivity part numbers 31068-1011, 31068-1010, and 31068-1040. Used in headlight assemblies and sensor harnesses across Ford Focus, Mondeo, Transit, and related platforms.
Ford headlamp connectors are exposed to engine bay heat cycles, moisture ingress, and vibration. The 4-pin housing is commonly found at the headlight assembly junction where multiple circuits — low beam, high beam, DRL, and position light — share a single connector. Corrosion or locking tab failure at this connector causes selective lighting faults that are frequently misdiagnosed as bulb or ballast failure. Replacing the connector is the correct first step before condemning the headlight assembly.
| OEM Number | Application |
|---|---|
| 31068-1011 | Primary headlamp harness connector |
| 31068-1010 | Alternate headlamp harness connector |
| 31068-1040 | Sensor harness connector variant |
| Pin | Typical Function | Failure Symptom if Open/Corroded |
|---|---|---|
| 1 | Low beam power | Low beam not illuminating |
| 2 | Low beam / high beam ground | Both beams out simultaneously |
| 3 | High beam power | High beam not illuminating |
| 4 | DRL / position light or sensor signal | DRL fault or sensor error code |
| Attribute | Detail |
|---|---|
| Pin Count | 4-Pin |
| OEM Part Numbers | 31068-1011 / 31068-1010 / 31068-1040 |
| Housing Material | Nylon PA66 |
| Application | Headlamp assembly harness, sensor harness |
| Compatible Brands | Ford, Lincoln (shared platform) |
| Terminal Included | Yes |
Q: My Ford Focus low beam is out but the bulb is fine — could it be the connector?
A: Yes. A corroded or partially disengaged 4-pin headlamp connector is a common cause of selective beam failure on Ford Focus. The low beam circuit (Pin 1) is most vulnerable to corrosion because it carries continuous current during normal driving. Inspect and clean the connector before replacing the bulb or ballast.
Q: What fault codes does a failed Ford headlamp connector cause?
A: Depending on the vehicle, a failed 4-pin headlamp connector can trigger codes such as B1317 (battery voltage high), B2477 (module configuration failure), or lighting-specific codes. On CANBUS-equipped Ford platforms, the BCM may log a "headlamp circuit open" or "headlamp output fault" DTC.
Q: Is this connector compatible with both male and female sides?
A: Please select the correct gender (male plug or female socket) from the variant options before ordering. The OEM numbers 31068-1011 and 31068-1010 typically refer to the female housing; 31068-1040 may refer to the sensor-side variant. Verify against your existing connector before purchase.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
Q: Can I use this on Lincoln vehicles?
A: Lincoln vehicles sharing Ford C1/CD3/CD4 platform architecture use the same Yazaki/TE Connectivity connector family. Verify the OEM part number on your existing connector before ordering.
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