So, you’re looking to install a trailer brake controller on your RAM truck and avoid the hefty ~$700 dealership quote? You’re in the right place. Many owners find the dealership price for a factory trailer brake controller purchase and installation to be quite expensive. This guide will walk you through the process of installing it yourself at home, including flashing the necessary software to integrate the trailer brake controller with your UConnect system. The best part? You can do it in under 2 hours and save a significant amount of money. Plus, you’ll be utilizing Bluetooth Obd2 Car Controller Software to manage your vehicle’s systems, giving you more control and insight into your truck’s electronics.
If you’re ready to learn how to accomplish this DIY install and software update, keep reading!
Step 1: Gather Your Parts
First, you’ll need to order the necessary parts. The parts listed below are confirmed to work with the 12″ touchscreen UConnect system and should be compatible with most standard RAM 1500 models. However, it’s always wise to double-check compatibility with your specific vehicle model and year.
Here’s the parts list, updated for accuracy:
- Trailer Tow Module: 68277136af – ~$79.07
- Switch Instrument Panel (for 12″ screen and likely others): 68309259ac – ~$28.69
- Module Bracket: 68346572ab – ~$1.39
- Nuts (x3): 6510468aa – ~$0.61 each
- Screws (x3): 6101946 – ~$0.54 each
- OBD2 Bluetooth Reader: (BAFX Products OBD2 Bluetooth Reader from Amazon or similar) – ~$25. This Bluetooth OBD2 reader will interface with your car’s computer system.
- FCA Security Gateway Bypass Module: – ~$50. This module is crucial for accessing and modifying your vehicle’s software.
- AlfaOBD Software: (From the app store or AlfaOBD website) – ~$50. AlfaOBD is the Bluetooth OBD2 car controller software that allows you to configure your vehicle’s modules, including adding the trailer brake controller functionality.
Total Estimated Cost: ~$237.60 (including software)
By choosing to DIY and utilizing Bluetooth OBD2 car controller software, you save hundreds compared to dealership installation costs.
Alternative – Dealer Software Flash:
If you prefer not to handle the software flashing yourself, or if your local dealer offers a software flash for under $100, you could consider that option. However, investing in the OBD2 reader and AlfaOBD software provides additional benefits. Beyond just this trailer brake controller installation, you gain the ability to read and clear engine codes, perform other software updates, and customize various vehicle settings. This capability can be valuable for ongoing vehicle maintenance and personalization. Using Bluetooth OBD2 car controller software puts you in control of your vehicle’s diagnostics and customization.
Step 2: Disconnect the Negative Battery Terminal
Safety first! Before starting any electrical work on your vehicle, disconnect the negative battery terminal. This prevents accidental shorts and ensures a safe working environment. You’ll need a 10mm wrench or a similar tool for this step.
Step 3: Remove the Center Stack of the Dash
Removing the center stack might seem daunting, but it’s a straightforward process and necessary to access the area for installing the new trailer brake controller switch. Don’t worry, it’s designed to be removed without special tools.
First, remove the two screws located at the top of the center stack. Then, place one hand in the upper cupped area and the other at the bottom of the piece. Pull firmly and straight out, towards the back of the cab. The center stack is held in place by clips and will pop out. It’s a robust piece, so normal force won’t damage it, but avoid excessive force.
You’ll encounter connectors on the back of the center stack. For the connector pictured below, a small screwdriver can help depress the latch for easier removal, especially if you have larger fingers. It’s recommended to disconnect all plugs on the back of the console. This minimizes the risk of damaging wiring or the console itself and provides more room to work.
Step 4: Unwrap the Trailer Brake Switch Connector
Locate the connector wrapped in cloth tape. This is the connector you’ll need to connect to your new trailer brake switch. Carefully unwrap the tape to expose the connector.
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By following these steps and utilizing Bluetooth OBD2 car controller software, you can successfully install your trailer brake controller and save money while gaining valuable control over your vehicle’s systems. This DIY project empowers you to manage your vehicle’s features and perform future upgrades with confidence.
