Light Relays, Sensors, Control Modules
- Dorman®Conduct-Tite™ Headlight ConnectorConduct-Tite™ Headlight Connector by Dorman®. With insulation that’s as secure as it is durable, Dorman’s Pigtail Headlight Connector prevents the corrosion, overheating, and melting that commonly cause this part to deteriorate....Direct replacement for ease of installationSave time and expense by replacing only the connector, not the entire harness$2.58 - $31.55
- Dorman®Conduct-Tite™ Parking Light Bulb SocketConduct-Tite™ Parking Light Bulb Socket by Dorman®. Looking to maintain the top condition of your electrical system? Dorman is ready to help you! Just choose from their immense selection of premium replacement electrical parts...Bulb simply plugs into socket for ease of installationDirect replacement engine coolant temperature sensor connectors available (where applicable) to ensure a proper fit$2.94 - $50.61
- Dorman®Parking Light ConnectorsParking Light Connectors by Dorman®. Looking to maintain the top condition of your electrical system? Dorman is ready to help you! Just choose from their immense selection of premium replacement electrical parts manufactured to strict...No special tools required for installationEasy to install$15.76 - $19.20
- Dorman®TECHoice Headlight Wiring Harness ConnectorTECHoice Headlight Wiring Harness Connector by Dorman®. Engagement of the four-wheel drive system is crucial during slick weather conditions. Dorman provides you with the security of knowing that your switch will activate every time....Easy installation; just plug it in to the mating componentDirect replacement matches original design$15.76 - $39.38
- Dorman®TECHoice™ Headlight SocketsTECHoice™ Headlight Sockets by Dorman®. Looking to maintain the top condition of your electrical system? Dorman is ready to help you! Just choose from their immense selection of premium replacement electrical parts manufactured to...Durably designed for a long service lifeAlso suitable for a broad range of industrial and commercial uses$3.92 - $16.91
- Dorman®TECHoice™ Tail Light SocketTECHoice™ Tail Light Socket by Dorman®. Looking to maintain the top condition of your electrical system? Dorman is ready to help you! Just choose from their immense selection of premium replacement electrical parts manufactured to...Easy to installDirect replacement for a proper fit$2.94 - $16.64
- Mopar®Fog & Driving Light Wiring HarnessFog & Driving Light Wiring Harness by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$2.64 - $262.65
- Standard®Headlight ConnectorHeadlight Connector by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to all channels of...Premium parts you can rely onDesigned to restore functionality$5.67 - $139.42
- WVE®Back Up Light SocketBack Up Light Socket by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed the OEM...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$3.01 - $194.62
- WVE®Brake Light Switch ConnectorBrake Light Switch Connector by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$12.61 - $100.59
- WVE®Fog Light ConnectorFog Light Connector by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed the OEM...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$4.05 - $167.98
- WVE®Headlight Low Beam Light ConnectorHeadlight Low Beam Light Connector by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$4.05 - $10.74
- WVE®Headlight RelayHeadlight Relay by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed the OEM...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$4.16 - $426.53
- WVE®Side Marker Light SocketSide Marker Light Socket by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed the...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$2.56 - $160.71
- WVE®Tail Light Circuit BoardTail Light Circuit Board by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed the...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$16.69 - $168.87
- WVE®Turn Signal RelayTurn Signal Relay by WVE®. Replace your worn-out or faulty component with this quality replacement from WVE. This product is designed and tested to ensure the ultimate in durability and functionality. Made to meet or exceed the OEM...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$4.16 - $204.15
- Vemo®Headlight Control ModuleHeadlight Control Module by Vemo®. Designed as a direct-fit replacement of your worn-out or malfunctioning part, it will provide easy, no-hassle installation and help restore proper fuel system functionality needed to keep your vehicle...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$49.59 - $2,084.67
- Race Sport®OEM Factory Replacement BallastOEM Factory Replacement Ballast by Race Sport®. These individual OEM HID Replacement ballasts ensure that your vehicle's lighting is always working. This product is made of high-quality materials to serve you for years to come. Designed...Single 35W OEM D4 Style HID Replacement BallastIncludes mounting hardware$54.99 - $74.99
- Diode Dynamics®CANBUS Anti-Flicker ModuleCANBUS Anti-Flicker Module by Diode Dynamics®. Looking to maintain the top condition of your electrical system? They are ready to help you! Just choose from their immense selection of premium replacement electrical parts manufactured to...Designed to help restore the performance of your electrical systemMade from high-grade materials using the latest techniques$25.00 - $50.00
- ACDelco®GM Genuine Parts™ Object Sensor ModuleGM Genuine Parts™ Object Sensor Module by ACDelco®. GM Genuine Parts Object Sensor Modules are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed...Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors$241.80 - $504.57
- ACDelco®GM Original Equipment™ Brake Light Switch ConnectorGM Original Equipment™ Brake Light Switch Connector by ACDelco®. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of premium replacement electrical...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$22.28 - $65.64
- ACDelco®GM Original Equipment™ Daytime Running Light ConnectorGM Original Equipment™ Daytime Running Light Connector by ACDelco®. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of premium replacement electrical...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$29.04 - $50.49
- ACDelco®GM Original Equipment™ Fog Light Switch ConnectorGM Original Equipment™ Fog Light Switch Connector by ACDelco®. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of premium replacement electrical parts...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$22.28 - $99.68
- ACDelco®GM Original Equipment™ Multi Purpose Wire ConnectorGM Original Equipment™ Multi Purpose Wire Connector by ACDelco®. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of premium replacement electrical...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$10.04 - $174.49
- ACDelco®GM Original Equipment™ Parking Light Bulb SocketGM Original Equipment™ Parking Light Bulb Socket by ACDelco®. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of premium replacement electrical parts...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$19.49 - $46.71
- ACDelco®GM Original Equipment™ Rear Light Harness ConnectorGM Original Equipment™ Rear Light Harness Connector by ACDelco®. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of premium replacement electrical...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$13.94 - $97.22
- ACDelco®GM Original Equipment™ Side Marker Lamp ConnectorGM Original Equipment™ Side Marker Lamp Connector by ACDelco®. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of premium replacement electrical parts...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$21.59 - $25.84
- ACDelco®GM Original Equipment™ Turn Signal Light SocketGM Original Equipment™ Turn Signal Light Socket by ACDelco®. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of premium replacement electrical parts...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.44 - $103.29
- ACDelco®Genuine GM Parts™ Accessory Delay RelayGenuine GM Parts™ Accessory Delay Relay by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$11.43 - $46.00
- ACDelco®Genuine GM Parts™ Headlight Level SensorGenuine GM Parts™ Headlight Level Sensor by ACDelco®. Looking to maintain the top condition of your electrical system? We are ready to help you! Just choose from their immense selection of premium replacement electrical parts...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$12.47 - $89.59
Automotive lighting is what helps car aficionados stay safe and sound behind the wheel during poor visibility conditions and at night. The simplest light circuit consists of a switch, a bulb, and a power source. The lighting circuits in modern vehicles are far more complex, however, and usually include relays, sensors, and control modules. Control modules govern circuits where more than simple on/off is required; relays allow a low-current circuit to control a high-current circuit; and sensors affect function, enabling automatic operation or adjustment.
Relays are the most common additional component found in light circuits and controlled by the low power signal, sending a signal to the circuit breaker as soon as the fault in the lighting system occurs. They are used for protection against any voltage surges and to simplify component design and installation. Many lighting circuits draw high current and heavier gauge wire must be used. By controlling the load with a relay, much lighter gauge wire and a smaller, lighter-duty switch can be used in the circuit between the switch and the relay, making switch construction and mounting location in the vehicle easier. Many lighting circuits are controlled through a body control computer. Using a relay in the circuit protects the computer from expensive damage that could be caused by high current.
One of the most common lighting control module is found in the Daytime Running Lights (DRL) system. DRLs automatically activate the headlights, usually at reduced intensity, when the engine is running. The increased vehicle visibility makes driving safer during daylight hours, and the driver can override the system at any time by turning on the headlights. Some systems use a resistor to reduce voltage to the headlights for reduced light intensity, but many systems use pulse width modulation and a control module that has a duty-cycle to reduce output. In a duty cycle output, power is rapidly switched on and off as it is supplied to the lights. The “off” time reduces power supplied by a desired percentage and so reduces the headlight intensity.
Sensors are used in some lighting system to affect their operation. Photocell sensors detect ambient lighting and are used in automatic on/off headlight systems and with automatic headlight dimming. In the former system the photocell sensor signals a control module when the level of ambient lighting decreases to a certain level, and the module energizes a relay that in turn sends power to the headlights. In the latter system the headlights are switched from high to low beam when the photocell sensor detects light from oncoming vehicles. Vehicles with self-leveling headlights have a level sensor that detects changes in vehicle tilt caused by additional passengers or cargo, signaling a leveling motor that adjusts the angle of the headlights accordingly.
Whether you’re looking for a premium-grade light relay to ensure effective protection for the circuit from overcurrents, control module to safeguard the system from over/under charging and allow you to turned on/off the lights automatically at programmable time intervals, or sensors to detect how bright/dark the light is, we’ve got you covered. Our virtual shelves are stacked to the ceiling with a diverse variety of top-notch light relays, sensors, and control modules from leading manufacturers in premier restoration part industry. Designed with high precision using the finest materials, these components look, fit, and perform as perfectly as your original parts. They’re bound to help restore your lighting system’s protection and efficiency so you can enjoy superior level of illumination needed to safely operate your vehicle, while having confidence that it stays safe from heavy currents.
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