![]() Fully snubbed against "spikes" and other hazards.Totally transparent: the car does not detect it. ![]() Monitors the trailer flashers, with both a built-in audible output and terminal outputs for a remote sounder or warning lamp.When the car "swaps" bulbs in the event of a bulb failure, the relay again interprets correctly and keeps the correct trailer lights on. brake and tail) the relay interprets the modulated signals and switches on the correct trailer lamps.ī. When the car uses a modulated power feed to make one single filament bulb perform the function of different lamps (e.g. The following two examples are common in cars.Ī. No chatter, no dim lights, just on and off as they should be. The smart bypass relay has a controller that measures the signals from the vehicle's lighting systems against exact criteria to determine which trailer lights should be switched on. Many cars send complex or modulated power signals to switch their rear lights, so making the towing relay work correctly is not simple. ![]() Universal bypass relays do not interact with TSP or cut the reverse sensors out. Bypass relays are fitted to stop the vehicles light check control system putting a warning light onto the dashboard to suggest that one or more bulbs has blown when actually the trailer lights are taking away a small amount of electrical current.īypass relays are also used when wiring onto CANBUS systems to prevent any electronic component failure. ![]()
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