
591-06745 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $84.50 | Condition is Used, 1999 2000 2001 Chevy Silverado GMC Sierra Theft Locking Keyless Entry Module Y3, shipping cost = $9.36 | 99.9% |

The Chevrolet 591-06745 Chassis ECM (Electronic Control Module) is a theft-locking keyless system designed specifically for certain 1999-2001 Chevrolet Sierra 1500 pickup trucks. This advanced security feature is integrated into the vehicle's chassis ECM, which controls various electrical systems and functions in the vehicle.
The theft-locking keyless system adds an extra layer of protection against vehicle theft. It requires the use of a valid, programmed key fob to start the engine or operate certain functions of the vehicle. Unauthorized attempts to start the vehicle without the key fob will result in the vehicle's alarm being activated, making it difficult for thieves to make off with your vehicle.
The keyless system communicates with the chassis ECM to ensure that only authorized key fobs are able to start the vehicle. Each key fob is programmed with a unique code that is recognized by the ECM. When the correct key fob is used, the ECM will allow the vehicle to start normally.
The keyless system also includes a "valet mode" feature that can be activated with the key fob. This mode limits the functionality of the vehicle, preventing the driver from accessing certain features such as the radio or climate control system. This can be useful when lending your vehicle to someone you trust but want to limit their access to certain features.
The installation of the Chevrolet 591-06745 Chassis ECM theft-locking keyless system requires professional installation by a certified mechanic or dealership. The system includes all necessary components, including the chassis ECM, key fobs, and wiring harnesses. The installation process involves connecting the wiring harnesses to the appropriate electrical connections in the vehicle and programming the key fobs to work with the vehicle's new security system.
The Chevrolet 591-06745 Chassis ECM theft-locking keyless system is a valuable investment for anyone who wants to add an extra layer of security to their 1999-2001 Chevrolet Sierra 1500 pickup truck. It provides peace of mind knowing that your vehicle is protected against theft, and it can give you the confidence to leave your vehicle unattended without worrying about it being stolen.
Pros and Cons of Buying Chevrolet 591-06745 Chassis ECM for 99-01 Sierra 1500 with Theft-Locking Keyless System
Introduction:The Chevrolet 591-06745 Chassis ECM with theft-locking keyless system is an aftermarket solution designed to enhance the security features of 99-01 Sierra 1500 pickups. This device comes with several advantages and disadvantages that potential buyers should consider before making a purchase.
Pros:1. Enhanced Security: This ECM integrates a theft-locking system, which makes it difficult for thieves to bypass the factory immobilizer system, thus reducing the risk of theft.
2. Keyless Convenience: With the keyless system, you can unlock and start your vehicle without the need for a physical key, offering added convenience.
3. Improved Fuel Efficiency: Some users have reported improved fuel efficiency after installing this ECM due to better engine management.
4. Diagnostic Capabilities: The ECM comes with diagnostic capabilities, allowing you to monitor and troubleshoot various vehicle systems.
5. Compatibility with Aftermarket Accessories: This ECM is compatible with various aftermarket accessories, such as performance chips and towing packages.
Cons:1. Installation Complexity: Installing this ECM can be a complex process that requires professional assistance or extensive knowledge of vehicle electronics.
2. Cost: The cost of purchasing and installing this ECM can be relatively high compared to other aftermarket solutions.
3. Potential Compatibility Issues: There have been reports of compatibility issues with specific aftermarket accessories or vehicle configurations.
4. Risk of Errors: As with any aftermarket electronics, there is a risk of errors or malfunctions that could require professional assistance to resolve.
Conclusion:The Chevrolet 591-06745 Chassis ECM with theft-locking keyless system offers several advantages, such as enhanced security, keyless convenience, improved fuel efficiency, diagnostic capabilities, and compatibility with aftermarket accessories. However, it also comes with disadvantages, including installation complexity, cost, potential compatibility issues, and the risk of errors.
Recommendation:If you are looking for a high-security solution for your 99-01 Sierra 1500 and are willing to invest in a complex installation process, the Chevrolet 591-06745 Chassis ECM with theft-locking keyless system could be an excellent choice. If you prefer a simpler and more cost-effective solution, you may want to consider alternative security systems or aftermarket accessories that do not require a significant investment in electronics. Ultimately, the decision depends on your specific needs, budget, and technical expertise.
Details:
Sierra 2500 pickup 99-00 theft-locking; receiver, keyless entry. Sierra 1500 pickup 99-00 theft-locking; keyless entry. Sierra 1500 pickup 01 theft-locking; keyless entry, id 15732806. Sierra 2500 pickup 01 theft-locking; receiver, keyless entry, id 15732806.
specifications perfoelectric:
- for models: 1500, Sierra
- for years: 1999–2001
- brand: Chevrolet Truck
- part type: Ecm Entry
- genuine oem: Yes
- ipn: 591-06745
- make: Chevrolet
payments perfoelectric:
- wallet: apple-pay
- other
- credit card: visa
shipping perfoelectric:
- service: standard
- class: standard
- type: fixed
- transit: 3-8 days
returns perfoelectric:
- time: 30 days
- paid by: buyer
- policy: returns accepted
offer perfoelectric:
- in stock #: 1
- started: june 30, 2025
- price: $84.50
- item condition: Used
- options: ship-to-home
- availability: in stock
- sold #: 19
general perfoelectric:
- category: Auto Parts > Electrical Components
seller perfoelectric:
- city: sanborn, iowa
- # reviews: 940
- rating: 92.7%
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