Roadmaster 88400 Brake-Lite Relay Kit. Condition is "New". Condition is Brand New. Brand: Roadmaster Model: 88400 Shipped with USPS First Class Mail . You Will Receive 1 ea #88400 Roadmaster Brake-Lite Relay Kit. Condition is "New". RARE VINTAGE COLLECTIBLE SHIPS N 24 HOURS Packed By Our Award Winning Packaging And Shipping Department Long Time E-commerce Seller For Over 20 Years LIMITED AVAILABILITY Follow Our Store For All New Rare Products Posted Daily and Specials Please click https://www.ebay.com/usr/boughtnowcommerce Inventory Box Number: 5159 Roadmaster 88400 Brake-Lite Relay Kit Product Type:Auto Accessory Item Package Dimension:2.54 Centimeters L X 15.494 Centimeters W X 24.892 Centimeters H Country Of Origin: United States Item Package Weight:0.181 Kilograms Roadmaster Inc 88400 Towed Vehicle Brake-Lite Relay Kit PART NUMBER: 88400 BRAND: Roadmaster Inc DESCRIPTION Roadmaster Inc 88400 Towed Vehicle Brake-Lite Relay Kit PRODUCT INFORMATION BRAND Roadmaster Inc Part Number: 88400 What does the Brake-Lite Relay do - It stops the brake lights from functioning until the vehicle is started. This prevents the towed vehicle?s brake signal from overriding the motorhome?s turn signal. When you tow without the Brake-Lite Relay, your towed vehicle?s brake lights alone will work fine. Your turn signals alone will work fine. But if you?re braking and turning, the brake light from the towed vehicle will override the turn signal from the motorhome and drivers behind you will be unaware you?re about to turn. Do you need a Brake-Lite Relay - You only need a Brake-Lite Relay if you?re installing a supplemental towed vehicle braking system that pushes or pulls the brake pedal. Exceptions: With the engine off, step on your brakes. If the brake lights do not illuminate, you do not need a Brake-Lite Relay. If you're using magnetic tow lights or a bulb and socket wiring kit, you do not need a Brake-Lite Relay. If both your motorhome and towed vehicle are wired for separate brake and turn signals, you do not need a Brake-Lite Relay. Note: Many newer vehicles have a sleep mode which shuts down most electronics, including the brake lights, when the engine is turned off. However, this sleep mode isn?t instantaneous it takes a certain amount of time to kick in. Until that happens, your vehicle?s brake lights will override the turn signal during towing. To avoid this you can either: a) install a Brake-Lite Relay; b) wire the vehicle so that the turn signals function while towing; c) install a bulb and socket kit; or d) wait for the sleep mode to activate before towing. The option you choose is a function of what works best for your particular towing combination.