
591-03871 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $21.95 | Condition is Used, 2016 Jeep Compass Patriot 4WD Stability Control Module P56038984AA OEM, shipping cost = $11.99 | 99.8% |
![]() | $84.47 | Top Pick! Condition is Used, 2009-2012 Jeep Patriot Stability Control Module OEM, FREE SHIPPING | 98.6% |

The Jeep/Plymouth 591-03871 Chassis ECM (Electronic Control Module) is a crucial component in the stability control system of select 4WD (Four-Wheel Drive) Dodge Compass vehicles manufactured between 2009 and 2012. This advanced electronic module plays a significant role in maintaining optimal vehicle stability and traction under various driving conditions.
The 591-03871 Chassis ECM is responsible for monitoring and controlling the complex interaction between the vehicle's various safety systems, such as Anti-lock Braking System (ABS), Traction Control System (TCS), and Electronic Stability Control (ESC). It processes data from numerous sensors throughout the vehicle to ensure steady and secure handling, especially during evasive maneuvers, hard acceleration, or slippery road conditions.
The state-of-the-art microcontroller within the ECM continuously analyzes input from wheel speed sensors, yaw rate sensors, and lateral and longitudinal acceleration sensors to assess vehicle dynamics. Based on this data, the Chassis ECM makes real-time adjustments to the engine, transmission, and braking systems to help maintain the desired vehicle trajectory and prevent skidding or hydroplaning.
Additionally, the 591-03871 Chassis ECM is compatible with the vehicle's 4WD system. It can detect and respond to changing road conditions, automatically engaging or disengaging the 4WD system as necessary to optimize traction and stability. This feature is particularly beneficial in low-traction situations, such as driving on snow, ice, or uneven terrain.
In summary, the Jeep/Plymouth 591-03871 Chassis ECM is an essential part of the stability control system in select 2009-2012 Dodge Compass 4WD vehicles. Its advanced functionality helps maintain vehicle stability and traction under various driving conditions, ensuring a safer and more confident driving experience.
The Jeep/Plymouth 591-03871 chassis ECM (Electronic Control Module) stability control system is an important component in ensuring the safety and optimal performance of 4WD (Four-Wheel Drive) Dodge and Jeep Compass vehicles manufactured between 2009 and 2012. This system helps maintain vehicle stability and control during adverse driving conditions by activating various safety features. Here are some pros and cons of buying this specific chassis ECM:
Pros:1. Enhanced safety: The stability control system is designed to prevent skidding, rolling over, and loss of control during sudden maneuvers or when driving on slippery or uneven surfaces.
2. Improved performance: The ECM optimizes engine power distribution between the wheels, providing better traction and acceleration, particularly in off-road conditions.
3. Reduced emissions: The stability control system may help improve fuel efficiency and reduce harmful emissions by optimizing engine performance and reducing unnecessary power loss.
Cons:1. Cost: Replacing a faulty chassis ECM can be an expensive repair, especially if you choose to purchase a new one from the dealership.
2. Complexity: The stability control system is a complex electrical system, and diagnosing and repairing issues may require specialized tools and knowledge.
3. Potential for compatibility issues: Aftermarket ECMs may not always be compatible with all vehicle models and configurations, so it is essential to ensure that the replacement part is specifically designed for your 2009-2012 Dodge or Jeep Compass.
Conclusion:The Jeep/Plymouth 591-03871 chassis ECM stability control system is an essential component for ensuring safety and optimal performance in 4WD Dodge and Jeep Compass vehicles from 2009 to 2012. While the cost and complexity of repairing or replacing the ECM may be a concern, the benefits of improved safety, performance, and potential fuel efficiency make it a worthwhile investment. When purchasing a replacement ECM, make sure to choose a reputable supplier and ensure that the part is compatible with your specific vehicle model and configuration.
Recommendation:If you are experiencing issues with your Dodge or Jeep Compass stability control system and are considering a replacement, I would recommend researching reliable aftermarket suppliers or contacting your dealership for a quote on a genuine OEM (Original Equipment Manufacturer) part. Perform due diligence to ensure the replacement part is compatible with your vehicle and comes with a warranty. Additionally, consider the potential cost savings of an aftermarket part while understanding the potential risks associated with compatibility and potential future repair costs.
Details:
specifications perfoelectric:
- for models: 4wd, Patriot, Compass
- for years: 2009–2012
- brand: Jeep/plymouth Truck
- model: Patriot
- part type: Ecm Control
- conditions options: At, 4x4, Limited
- genuine oem: Yes
- ipn: 591-03871
- make: Jeep/plymouth
- manufacturer warranty: 90 Day
payments perfoelectric:
- other
- wallet: paypal
- credit card: discover
returns perfoelectric:
- paid by: seller
- time: 60 days
- policy: returns accepted
seller perfoelectric:
- city: jackson, missouri
- rating: 97.2%
- # reviews: 1066
offer perfoelectric:
- availability: in stock
- best offers: true
- started: march 13, 2025
- prices: $21.95–$84.47
- item condition: Used
- in stock #: 2
- sold #: 22
- options: ship-to-home
general perfoelectric:
- category: Auto Parts > Electrical Components
shipping perfoelectric:
- transit: 4-8 days
- service: usps priority mail
- carrier: usps
- class: expedited
- type: fixed
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