Switches & Relays

As the automotive industry continues to introduce more electronic systems, switches and relays will play a greater role in daily operation and repairs. With over 10,000 engine, multifunction, and driver operated switches and relays for import and domestic vehicles, BWD® sets the bar for coverage you can count on. BWD® switches and relays are all meticulously designed, manufactured and tested to meet or exceed OE specs, for impressive reliability and performance.

BWD® is ready with a vast selection of technologically advanced components to address the daily operation and repair needs of technicians working on late model and older vehicles. Our expansive line includes: coolant fan, combination, cruise control, dimmer, door, hall effect, a/c cut-off, door jamb, idle, stoplight, variable valve timing oil pressure, door lock position, torque converter lock-up, transmission oil pressure, fog light, headlight, heated seat, ignition, parking brake, power door lock, power mirror, power seat, power window, rear defogger, temperature control, trunk release, turn signal and windshield wiper, just to name a few.

Meticulously designed, manufactured and tested to meet or
exceed OE specs, for impressive reliability and performance.”

Driver / Passenger Operated Switches

BWD® offers a complete line of driver / passenger operated switches in addition to our engine switch offering. With more than 5,000 driver operated switches, BWD® is sure to have your switch! Our expansive line of driver operated switches includes: combination, cruise control, dimmer, fog light, hall effect, headlight, heated seat, ignition, parking brake, power door lock, power mirror, power seat, power window, rear defogger, temperature control, trunk release, turn signal and windshield wiper, multi-function, power seat memory, steering wheel audio control, hazard warning, many more.

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Ignition Switches / Lock Assemblies

Decades of industry leading research and development focused on meeting the technician’s needs for quality Ignition Switches has led BWD® to offer a complete line of Ignition Switches and Lock Assemblies unsurpassed in quality. All BWD® ignition switches, locks, and assemblies are perfectly matched to the original for precision installation. Our Ignition Lock Assemblies are of professional quality construction using solid brass tumblers, chrome plated brass keys, die-cast zinc lock cores and multiple, randomly assigned key codes to always ensure superior operation.

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Recoding a new BWD® Ignition Lock Cylinder

View BWD's instructional video to learn how to recode a new ignition lock cylinder. This video will show you how to recode a new ignition lock cylinder with your original key. For additional videos on how to replace your vehicle’s Ignition Lock or Door Lock Cylinder, visit BWD's YouTube channel.

Stoplight Switches

No Start Condition for Nissan/Infiniti Applications with Automatic Transmissions

For vehicles equipped with keyless ignition systems, a no start condition can be caused by a faulty stoplight switch. These vehicles require the brake pedal to be depressed before pressing the engine start button for the engine to start. If the brake light switch is defective, the engine will not start.

How to Diagnose

An easy way to diagnose is to have someone press the brake pedal while you stand behind the vehicle and check to see if the brake lights illuminate. If the lights do not illuminate, they could be the cause of the no start condition.

A Solution for Faulty Stoplight Switches

If the stoplight switch is the cause of the no start condition, we are your source for quality manufactured stoplight switches. With more than 300 SKUs available, we provide comprehensive coverage for import and domestic applications. For a sense of the design and manufacturing that goes into our stoplight switches, take a look at our SL2110:


BWD® is your go-to source for a full line of accessory and electronic relay solutions that support all key engine components and systems, including: Air Conditioner System, Alarm System, Battery Saver, Blower Motor, Compressor Cut-off, Delay Switch, EFI System, Electronic Engine Control, Fuel Pump, Headlight, Power Trim System, Turn Signal, Fuel Injection, Starter, Main, Power Window, Theft Deterrent, Coolant Fan, Horn, Fog Lamp, Diesel Glow Plug, Windshield Wiper, Sunroof, Rear Window Defogger, and many others.

BWD® offers more than 255 unique relay categories and coverage for all domestic and import applications. BWD® relays match the OE for fit, form, and function to match what you take off the vehicle.

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Circuitry is designed to withstand electrical over-stress conditions such as reverse polarity, ESD transients, and jump start voltage extremes

100% tested during manufacturing for electronic component assembly and wire bond connectivity

100% tested prior to shipping for continuous current load, quiescent current, voltage drop,
pull-in current, voltage and hysteresis

Copper terminals with aluminum inlay keep electrical resistance low and still provide benefits for wire bonding and corrosion protection

Heatsink is made from aluminum for excellent corrosion resistance and thermal conductivity

Relay Replacement Tips

TechSmart® Key Fobs

Most modern vehicles come with the option for a keyless entry, also known as a ‘Key Fob’. The problem is that these transmitters drop, break, get lost, rubber buttons wear, contacts inside become corroded and the plastic case can crack.

TechSmart® offers a complete line of keyless entry transmitters providing a high-quality, cost effective solution to replace the damaged or lost original. Remember to always follow OE reprogramming instructions to ensure that your TechSmart® keyless entry transmitter works in harmony with your vehicle.

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