Please note that the tool that you receive after placing an online order may be in a used but operable condition due to the nature of the Loan-A-Tool® program. Do not wear ties or loose clothing when working on your vehicle.įREE Loan-A-Tool® program requires returnable deposit. Should electrolyte get on your body or clothing, neutralize it immediately with a solution of baking soda and water. Always wear gloves and safety glasses and other personal protection equipment, and work in a well-ventilated area. Sulfuric acid is caustic and can burn clothing and skin or cause blindness. Use caution when working with automotive batteries. Always disconnect the negative battery cable before servicing an electrical application on the vehicle to protect its electrical circuits in the event that a wire is accidentally pierced or grounded. Always chock your wheels prior to lifting a vehicle. It is usually used for towing heavy-duty cargo trailers, aluminum trailers, dump trailers, utility / landscape trailers, equipment trailers, open car haulers and enclosed car haulers. Refer to the service manual for specific diagnostic, repair and tool information for your particular vehicle. The 7-Way Trailer Plug is around 2 diameter connector that allows an additional pin for an auxiliary 12-volt power or backup lights. Information is accurate and true to the best of AutoZone’s knowledge, however, there may be omissions, errors or mistakes.īe sure to consult your owner’s manual, a repair guide, an AutoZoner at a store near you, or a licensed, professional mechanic for vehicle-specific repair information. I wonder if it would still work if I tapped into the brake light wire in the 4 pin connector? Isn't that the same thing? The brake controller would still receive a signal when the brake is depressed.Advice, how-to guides, and car care information featured on and AutoZone Advice & How-To’s are presented as helpful resources for general maintenance and automotive repairs from a general perspective only and should be used at your own risk. This still concerns me since I would be splicing into the the MOs electrical. Normally to install a brake controller, the manufacturers tell you to tap into the brake pedal switch wiring. I drive slow and leave plenty of space in front of me but if I had to make an emergency stop if someone cuts me off, my total GCVWR (total weight of MO, trailer, passengers, and cargo) is pretty high and would take me a while to stop especially on a 7% downhill grade at freeway speeds. I'm headed back up to the Pacific Northwest this summer with the tent trailer and will cover nearly 2500 miles with some good sized mountain passes in both California and Southern Oregon. All new tent trailer today, have a GVWR of over 1500lbs.įrom a safety standpoint, it still worries me some not to have the trailer brakes. However, I had to sacrifice a lot of features and options to find a lightweight older trailer. So legally, I can tow this trailer in CA without any issues. I ended up buying an older tent trailer (1994) with a dry weight of 1000lbs and GVWR of 1395lbs. Typically they choose to install electric brakes over surge brakes since most buyers prefer the controls of the electric brakes. In California, the RV dealers are required to install brakes for any trailer with a GVWR of 1500lbs or more. They are a local trailer builder and parts supplier for trailer builders around here. The website I attached eariler has lots of info. If you are looking at the inside of the trailer connector where the wires mount to the terminals starting at the top and. Here is a 7 Way Wiring diagram for the RV trailer plug hope this will help you. When wiring an RV trailer connector, it is best to wire by color function, as wire colors can vary. What ever you decide to do at the car-end you can always get an adapter to meet your trailer needs. 7-Way Wiring diagram for RV trailer plug. You will also need to start a black 12v wire (from either a hot line or the battery-good starting point with a dedicated fuse) to the connector. Then you will need to run your blue electric brake wire from your modulating unit(in the car) to it's home on the connector. Once you do cut it off adding a 6 or 7 pin connector is as easy as stripping 1/2" of wire and inserting it into it's proper hole and tighten with the set-screw for that wire. The 4-wire unit really has no power running through it with the car turned off and if you don't step on the brake pedal so cutting it at the connector isn't an issue. The connection I purchased is a 6-pin unit so that I can run 12v power to my cargo trailer(it doesn't have brakes) for powering lights without needing to run the car and having the lights on.
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