Product Description
| Feature | Specification |
| Primary Part Number | MOTORCRAFT D74B-15A217-AA |
| OEM Part Number | D74B-15A217-AA (Ford/Motorcraft) |
| Alternate Name | Cornering Relay (Often supplied by Sylvania to Ford) |
| Function | Controls the activation of the cornering lamps (side fender lights) when the turn signal is engaged, often keeping the light steady rather than flashing. |
| Voltage | 12 Volts |
| Terminals | 3-Prong (Typically a square/rectangular plug-in relay) |
| Construction | Plastic/Metal Housing with internal electrical contacts |
| Typical Use | Original Equipment (OE) relay often mounted under the dashboard or on the inner fender. |
| Vehicle/Truck | Years | Notes |
| Ford LTD Crown Victoria | 1977 - 1989 | Used on full-size sedans and station wagons with the cornering lamp option. |
| Mercury Grand Marquis | 1977 - 1989 | Used on full-size sedans and station wagons with the cornering lamp option. |
| Lincoln Town Car | 1977 - 1989 | Used on the full-size luxury sedan. |
| Lincoln Continental | 1977 - 1989 | Used on the full-size luxury models (including Mark V/VI/VII). |
| Ford Thunderbird | 1977 - 1988 | Used on the luxury coupe models with the cornering lamp option. |
| Mercury Cougar | 1977 - 1988 | Used on the corresponding Mercury coupe models. |
1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988
