Is Your Chevrolet HHR Experiencing Engine Problems?
If your 2006 Chevrolet HHR is suffering from erratic engine behavior, poor fuel economy, a no-start condition, or has an illuminated Check Engine Light with communication-related trouble codes, the Powertrain Control Module (PCM) could be the culprit. The PCM is the central computer of your vehicle, responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When it fails, it can cause a wide range of frustrating and difficult-to-diagnose issues. This replacement PCM, compatible with part numbers like 12600882 and 12599714, is the definitive solution to restore your vehicle’s performance and reliability.
We had a 2006 Chevy HHR come into the shop with a very peculiar issue. The owner complained of intermittent stalling at stoplights and a random hesitation during acceleration. There were no consistent trouble codes, just a generic U-code pointing to a loss of communication every now and then. We checked the wiring, grounds, and sensors, but everything seemed fine. On a hunch, we monitored the live data stream from the PCM and noticed the voltage readings for the throttle position sensor would occasionally drop to zero for a split second, causing the stall. After confirming the sensor and its wiring were good, we pinpointed an internal fault in the original PCM. We installed one of our pre-programmed modules, performed the security relearn, and the HHR ran perfectly. It’s a classic example of how a failing 2006 HHR PCM can create ghost-like issues that are nearly impossible to trace without replacing the unit itself.
Symptoms of a Failing 2006 HHR PCM
A failing engine computer can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your PCM needs attention. Look out for these common signs:
- ✔ Check Engine Light is on with codes related to the PCM (e.g., P0600-P0606) or other modules.
- ✔ The engine cranks but refuses to start.
- ✔ Stalling, stuttering, or hesitation while driving.
- ✔ A noticeable drop in fuel efficiency for no apparent reason.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Misfires or rough idling that can’t be traced to spark plugs or coils.
- ✔ Cooling fans not turning on, leading to overheating.
- ✔ Failure to pass an emissions test.
The Importance of VIN Programming
You can’t simply take a PCM from another vehicle and expect it to work in yours. Modern vehicles use a sophisticated anti-theft system (like GM’s Passlock/Passkey) that links the PCM to your specific Vehicle Identification Number (VIN). Our service eliminates the need for expensive dealership visits. When you purchase this module, we flash it with the latest GM-certified software updates and program it specifically to your car’s VIN. This ensures that when you receive the part, it is a true plug-and-play solution. The programming configures the module for your vehicle’s specific options, engine type, and transmission, guaranteeing seamless integration and proper function from the moment of installation.
Fitment and Compatibility
This Electronic Control Module is a direct replacement for a range of GM vehicles. It is crucial to match your part number to ensure compatibility. This unit is a correct replacement for the following service numbers: 12599714, 12589998, 12597329, 12600882, 12600883, 12605766, and 12605765.
This module will fit the following vehicles:
- 2006 Chevrolet HHR: Electronic Control Module; (LH rear engine compartment), 2.2L
- 2005-2006 Chevrolet Cobalt: Electronic Control Module; (LH front engine compartment), 2.2L
- 2005-2006 Pontiac Pursuit: Electronic Control Module; (LH front engine compartment), 2.2L
Don’t let a faulty computer keep your car off the road. This fully programmed PCM is the most reliable and cost-effective way to solve complex electronic issues and get your vehicle running like new again. Order today and provide your VIN to get a module that’s ready for installation right out of the box.
Frequently Asked Questions
Do I need to do anything after installing this PCM?
While we program the module to your VIN, you may need to perform a simple security relearn procedure. This procedure can typically be done without any special tools and involves a sequence of key turns. Instructions are readily available online or we can assist you in finding them. This step syncs the new PCM with your vehicle’s anti-theft system.
Where do I provide my VIN?
After you complete your purchase, you can send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive this information, as the programming is essential for the part to function in your vehicle.
Is this a new or used part?
This is a high-quality, tested, and inspected original equipment part. Each module undergoes a rigorous inspection and testing process to ensure it meets or exceeds OEM specifications before being programmed and shipped.
What if I have the wrong part number?
This module is compatible with several service numbers, including 12600882, 12599714, and others listed in the description. If you are unsure, please contact us with your VIN and original part number before ordering, and our experts will verify compatibility for you.
Will this fix my car’s specific problem?
This PCM will correct issues directly caused by a faulty engine computer. While the symptoms listed are common indicators of PCM failure, it’s always recommended to have a proper diagnosis performed by a qualified mechanic to rule out other potential causes like wiring, sensors, or fuel system problems.