So, you’re looking to get your key fob working again on your 2006 Chevy Impala? It can be a bit of a journey, but definitely achievable, especially if you’re the DIY type. My own experience involved a few twists and turns, but ultimately, I got it sorted. Let me walk you through what I learned, focusing on getting your key fob programmed for your 2006 Chevy Impala.
The Initial Challenge: Key Fob Issues on a 2006 Chevy Impala
Like many, I started with a simple problem: a non-responsive key fob. Maybe yours is completely dead, or perhaps it’s acting intermittently. In my case, after some initial troubleshooting, I suspected the Remote Control Door Lock Receiver (RCDLR) module or the antenna might be the culprit. This led me down the path of replacing these components to restore full key fob functionality, including remote start and tire pressure monitoring system (TPMS) integration, which were also showing service errors on my dash.
Gathering the Necessary Parts and Tools
To tackle this, I opted for a combination of new and used parts to keep costs reasonable. Here’s what I gathered:
- New Antenna: Purchasing a new antenna is generally recommended to ensure optimal signal reception.
- Used RCDLR Module (Part # 20803735): eBay can be a good source for used modules. Make sure to verify the part number is compatible with your 2006 Chevy Impala.
- Tech2 Diagnostic Tool & CANdi Interface: This is crucial for programming the new module to your car. While genuine Tech2 tools are expensive, clone versions are available and can be effective for DIY purposes.
- USB to RS232 Converter (HXSP-2108D Recommended): If you’re using a modern laptop without a serial port, a reliable converter is essential for communication between your laptop and the Tech2. Not all converters work seamlessly with Tech2, so research and choose a recommended model like the HXSP-2108D.
- GM TIS2000 Software (or TIS-2-Web Subscription): Software is needed to flash or program the RCDLR module. TIS2000 is an older software version often used with Tech2. However, for newer modules or updates, a subscription to TIS-2-Web might be necessary.
Navigating the Software and Programming Hurdles
This is where things got a little complex. The goal is to use the Service Programming System (SPS) via Tech2 to update or program the RCDLR module.
TIS2000 and Module Compatibility
Initially, I tried using my older laptop with TIS2000. This setup can work well for older vehicles and modules. However, I encountered a common issue: the used module I sourced from eBay was running a newer software version than what was available on my TIS2000 CD. TIS2000, in its standard configuration, often refuses to downgrade software, preventing me from programming the module.
TIS-2-Web Subscription: Stepping Up to Modern Software
To overcome this, the solution was to access the latest software versions through a single-vehicle subscription to TIS-2-Web. This is a web-based service from GM that provides access to the most up-to-date programming files for their vehicles. While it costs around $40 (USD prices may vary), it grants you the necessary access for module programming.
Java and Browser Compatibility Challenges
Modern web applications like TIS-2-Web often rely on specific browser and software configurations. I ran into a series of compatibility issues:
- Java Version: TIS-2-Web required a newer version of Java than what I had installed on my old XP machine.
- Internet Explorer (IE) Dependency: Older versions of TIS-2-Web might be optimized for Internet Explorer. However, updating IE on an old XP system can be problematic, and newer browsers like Firefox might not fully support Java applets required by TIS-2-Web.
- Pass-Through Programming: I discovered that for the RCDLR module (and potentially others), TIS-2-Web only supports “pass-through” programming. This means direct communication between your laptop and the vehicle via the Tech2 and CANdi interface is crucial. Remote programming methods might not be available for this specific module.
USB to Serial Converter and Reliable Connection
Switching to a newer Windows 7 laptop with a USB to serial converter introduced another potential point of failure: converter compatibility. Many USB to RS232 converters don’t work reliably with the Tech2 diagnostic tool, leading to communication errors. Researching and selecting a well-regarded converter like the HXSP-2108D is vital for establishing a stable connection.
The Programming Process and Troubleshooting
With the hardware and software hurdles addressed, the programming process itself should be straightforward. Here’s a breakdown of the steps and the troubleshooting I encountered:
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Physical Connections:
- Install the new antenna and RCDLR module in your Chevy Impala.
- Connect the Tech2 to the CANdi module.
- Connect the CANdi module to your vehicle’s ALDL (Assembly Line Diagnostic Link) connector.
- Connect the Tech2 to your laptop via the USB to serial converter.
- Ensure your laptop is connected to the internet for TIS-2-Web access.
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TIS-2-Web Session and Module Programming:
- Launch TIS-2-Web in a compatible browser (potentially Internet Explorer with a suitable Java version).
- Navigate to the Service Programming System (SPS) section.
- Follow the prompts to select your vehicle (2006 Chevy Impala) and the RCDLR module for programming.
- Initiate the programming process and allow the software to download and flash the new module.
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Key Fob Programming:
- Once the RCDLR module is programmed, use the Tech2 to program your original key fobs to the new module. This is usually a separate function within the Tech2 menu system, often found under “Body” or “Keyless Entry” options.
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Troubleshooting Communication Errors: During the TIS-2-Web programming process, I repeatedly encountered “Unknown Communications Error.” This was frustrating and required systematic troubleshooting.
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Pinpoint Intermittent Connection: After extensive troubleshooting, including checking cables and connections, I traced the communication error to an intermittent connection on pin 1 of the vehicle’s ALDL connector. Pin 1 is the low-speed GMLAN (General Motors Local Area Network) bus, crucial for communication in this process.
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Resolving the ALDL Connector Issue: Carefully inspect and clean the ALDL connector pins, ensuring a solid connection. In some cases, slight adjustment or cleaning of the pins might be necessary to establish reliable communication.
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Session Expiration and Password Reset: During troubleshooting, my TIS-2-Web session expired. The website prompted for a complex password (16 characters, including uppercase, lowercase, numbers, and special characters). Forgetting this password led to another hurdle: the password recovery link in Internet Explorer 8 failed due to a proprietary CAPTCHA issue. Switching to Firefox for password reset and then back to IE for Java compatibility became a workaround. Lesson learned: Write down your TIS-2-Web password!
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Successful Programming: Once the ALDL connector issue was resolved and the TIS-2-Web session was restarted, the programming process resumed smoothly. The software picked up where it left off, the file was cached, and the module flashing completed successfully. Confirmation of successful programming often includes dash lights flashing and gauges sweeping. The “Service Tire Pressure Monitoring System” error message on the dash disappeared, and key fob functionality was restored.
Was It Worth the DIY Effort?
Despite the challenges and troubleshooting, successfully programming the 2006 Chevy Impala key fob and RCDLR module myself was ultimately rewarding. The cost breakdown in Canadian dollars was:
- Antenna: $60.00
- Used RCDLR Module: $44.00
- USB to Serial Converter: $17.00
- TIS-2-Web Subscription: $57.00
Total (CAD): $178.00 (Approximately $130 USD)
While an aftermarket system and interface module might be an alternative, they could potentially be just as expensive and complex to install. The satisfaction of solving the problem myself and restoring the key fob functionality, especially remote start, for the 2006 Chevy Impala was definitely worth the time and effort. And as they say, a happy spouse who can start their car from inside the house? Priceless.
This DIY adventure into programming a 2006 Chevy Impala key fob highlights the complexities that can arise, but with patience, the right tools, and a bit of troubleshooting, it’s a task that a determined DIYer can conquer. Remember to double-check all connections, software compatibility, and be prepared for potential unexpected issues along the way.
