2013 Dodge Dart Body Control Module: Fixing Electrical Chaos & Programming Secrets
This guide clarifies common BCM failures, separates fact from fiction about the airbag module, and details the mandatory programming required for replacement.
- A replacement BCM is NOT plug-and-play; it requires a mandatory programming procedure called 'Proxy Alignment' to sync with your car's VIN and options.
- The BCM is NOT the Airbag Control Module (ORC). Many part numbers online are mislabeled; verify you are buying the correct part (base numbers 68189480 or 68189481).
- Before replacing the BCM, always check for simpler, common issues on the Dart: a weak battery, bad ground connections, and corrosion in the under-hood fuse box.
- Advanced DIYers can program a replacement BCM using AlfaOBD software and a compatible OBD-II adapter, avoiding expensive dealer fees.
BCM vs. Airbag Module: A Critical Distinction
Warning: The Body Control Module (BCM) is frequently confused with the Airbag Control Module, also known as the Occupant Restraint Controller (ORC). They are two completely separate parts. The BCM controls lights, windows, and locks. The ORC controls airbag deployment. Many online listings and databases incorrectly label airbag module part numbers as BCMs. The part numbers provided in the initial vehicle data (68207821AA, 68245834AA, 68083603AH, etc.) are for the Airbag/ORC module, NOT the Body Control Module. Buying the wrong part will not solve your electrical issues.
Known Issues & Preliminary Diagnosis
The 2013 Dodge Dart's electrical system, based on a Fiat architecture, is notoriously sensitive. Before condemning the BCM, which is an expensive and complex repair, rule out these common, simpler problems first:
- Weak or Failing Battery: Low system voltage can cause modules to malfunction and generate random communication error codes. Always have your battery professionally load-tested before proceeding with any BCM diagnosis.
- Poor Ground Connections: Corroded or loose ground wires are a frequent cause of electrical chaos that mimics BCM failure. Inspect and clean the main battery ground and other chassis ground points.
- Fuse Box Corrosion: The under-hood fuse box can suffer from corrosion, leading to poor connections and unpredictable electrical behavior. Check for any white or green crust on fuses and relays. 🎬 Watch this DIY guide to diagnosing fuse box power issues.
- Software Updates (TSBs): Dodge has released Technical Service Bulletins (TSBs) to fix electrical issues by simply updating the BCM's software. Ask a dealer to check if TSB 08-128-15 (for hard start/remote start issues) or TSB 08-001-13 (for fuel gauge and trunk release issues) apply to your vehicle. A software flash is much cheaper than a new module.
Symptoms of a Failing 2013 Dodge Dart BCM
When a BCM fails, it rarely causes a single, isolated problem. Instead, it typically produces a cascade of bizarre and seemingly unrelated electrical issues. Common symptoms include:
- Instrument Cluster Chaos: The dashboard may light up with multiple warning lights, gauges may drop to zero and sweep back up, and the odometer may flash.
- Erratic Lighting: Headlights, taillights, or interior lights may flicker, stay on when the car is off (causing battery drain), or not turn on at all.
- Window and Lock Malfunctions: Power windows may not operate, or may go up and down on their own. Power locks may engage or disengage randomly.
- Wipers and Horn Activating Randomly: The windshield wipers or horn may turn on by themselves.
- Starting and Security Issues: The car may not recognize the key fob, refuse to crank, or start and immediately stall.
- Parasitic Battery Drain: A faulty BCM can fail to shut down certain systems when the car is off, leading to a dead battery overnight.
- Diagnostic Trouble Codes (DTCs): The most common code associated with BCM failure is U0140 - Lost Communication With Body Control Module.
Programming: The Most Critical Step
You cannot simply swap a Body Control Module in a 2013 Dodge Dart. A replacement BCM, whether new or used, is essentially a blank slate and will not work correctly until it is programmed to your specific vehicle. This process is called Proxy Alignment.
A Proxy Alignment procedure uses a diagnostic tool to introduce the new BCM to all the other computer modules on the car's network (like the engine computer, transmission computer, and radio). It configures the BCM for your car's specific VIN and factory-installed options (e.g., sunroof, premium audio, automatic climate control).
Pro Tip: If you install a BCM without performing a Proxy Alignment, the most obvious symptom will be a constantly flashing odometer. This is the car's way of telling you that its modules are not in sync.
Who Can Program a Dodge Dart BCM?
- Dodge Dealership: Dealers have the factory-required wiTECH diagnostic tool and can perform the Proxy Alignment. This is the most reliable, but often most expensive, option.
- Qualified Independent Shop: Many independent repair shops that specialize in Chrysler/Dodge vehicles have high-end aftermarket scan tools or subscriptions to FCA's TechConnect that allow them to perform the procedure.
- DIY with AlfaOBD: For the advanced DIY mechanic, it is possible to perform the Proxy Alignment yourself. This requires the AlfaOBD software (for Windows or Android), a compatible high-quality OBD-II interface (like the OBDLink MX+), and the vehicle's 4-digit security PIN, which can be obtained from a dealership with proof of ownership. 🎬 See how to perform a DIY Proxy Alignment using AlfaOBD.
Buying a Used Body Control Module
Purchasing a used BCM is a great way to save money, but it requires careful attention to detail. Because this is a highly sensitive electronic part, compatibility is everything.
- Match the Part Number EXACTLY: This is the most important rule. There are several BCM part numbers for the 2013 Dart, often differing based on the vehicle's options. The main base numbers are 68189480 and 68189481. The two-letter suffix (e.g., AC, AD, AF) indicates a revision; later letters are newer versions. You must match the main number on your original module.
- Consider a Cloning Service: Some sellers, particularly specialized electronics rebuilders, offer a "cloning" or "programming" service for an extra fee. You send them your original BCM, and they copy its data to the replacement unit. This makes the used part truly plug-and-play, saving you a trip to the dealer for programming.
- Physical Inspection: When the part arrives, inspect the casing for any signs of water damage or heat warping. Check all connector pins to ensure they are straight and free of any green or white corrosion.
- Source Vehicle Information: If possible, get the VIN of the vehicle the used BCM came from. This can sometimes help a programmer if issues arise.
Cost Breakdown
The cost to replace a 2013 Dodge Dart BCM can vary significantly based on the part source and labor rates.
| Item | Estimated Cost |
|---|---|
| New OEM Part | $290 - $350 |
| Used OEM Part | $60 - $100 |
| Remanufactured (with Cloning Service) | $320 - $420 |
| Shop Labor (Physical Swap) | $100 - $200 (approx. 1-1.5 hours) |
| Shop Labor (Programming/Proxy Alignment) | $100 - $250 |
| Total Dealer Replacement (New OEM) | $500 - $800+ |
| Total DIY (Used OEM + AlfaOBD) | $160 - $250 (plus tools) |
Replacement Overview
Physically swapping the BCM is a straightforward job for a DIYer with basic tools.
- Disconnect the Battery: Always disconnect the negative battery terminal before working on any vehicle electronics.
- Access the Module: The BCM is located on the driver's side, integrated into the interior fuse panel. You will need to remove the lower dashboard trim panel under the steering column to access it.
- Remove Connectors and Bolts: Carefully disconnect all electrical connectors from the BCM. They have locking tabs that must be depressed. Then, unbolt the module from its mounting bracket. 🎬 Watch this step-by-step BCM removal and replacement video.
- Install the New Module: Bolt the replacement BCM into place and reconnect all electrical connectors securely.
- Reconnect Battery & Program: Reconnect the battery. The vehicle may exhibit strange behavior and the odometer will likely flash until the mandatory Proxy Alignment procedure is completed.
Frequently Asked Questions
Is the BCM the same as the Airbag Module (ORC)?
No. This is a critical point of confusion. The BCM (Body Control Module) handles comfort and convenience electronics like lights, windows, and locks. The ORC (Occupant Restraint Controller) is the airbag computer. They are separate parts, often located in different areas of the car, and have different part numbers.
Does a replacement BCM for a 2013 Dart have to be programmed?
Yes, absolutely. A replacement BCM must be configured to your car's VIN and options using a procedure called Proxy Alignment. It is not a plug-and-play part.
Can I program a Dodge Dart BCM myself?
Yes, if you are technically inclined. You can use software called AlfaOBD on a laptop or Android device, combined with a high-quality OBD interface like the OBDLink MX+. You will also need your car's 4-digit security PIN from a Dodge dealer.
Why is my odometer flashing after replacing the BCM?
A flashing odometer is the primary indicator that a Proxy Alignment has not been performed or was unsuccessful. The car's computer network detects a mismatch between the modules and flashes the mileage as a warning.
What's the difference between the BCM, PCM, and RF Hub?
They are three separate computers. The BCM (Body Control Module) runs body electronics. The PCM (Powertrain Control Module) is the main engine and transmission computer. The RF Hub (Radio Frequency Hub) manages security functions like the immobilizer, key fobs, and passive entry.
Helpful Videos
Technical Specifications
OEM Part Numbers: 68189480AC 68189480AD 68189480AE 68189480AG 68189481AC 68189481AD 68189481AE 68189481AF 68199630AC 68199631AC
Integrated with the interior fuse panel, located on the driver's side behind the lower dashboard.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Dodge Dart:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- BCM vs. Airbag Module: A Critical Distinction
- Known Issues & Preliminary Diagnosis
- Symptoms of a Failing 2013 Dodge Dart BCM
- Programming: The Most Critical Step
- Who Can Program a Dodge Dart BCM?
- Buying a Used Body Control Module
- Cost Breakdown
- Replacement Overview
- Frequently Asked Questions
- 🎟️ Get 5% Off