Restore Peak Performance to Your 2006 HHR

If you’re dealing with a frustrating check engine light, erratic engine behavior, or a no-start condition in your 2006 Chevrolet HHR, a failing Engine Control Module (ECM) is a likely culprit. As the brain of your vehicle’s engine, a faulty ECM can cause a cascade of problems that are often difficult to diagnose. This direct-fit replacement ECM is the reliable, straightforward solution you need. It arrives at your door pre-programmed with the latest GM software updates, specifically matched to your vehicle’s VIN. This eliminates the need for expensive dealership programming or specialized tools, getting you back on the road with confidence.

Is Your HHR Exhibiting These Symptoms?

A failing ECM can manifest in many ways. If you’re experiencing any of the following, it might be time for a replacement. This is especially true if you see diagnostic trouble codes (DTCs) like P0601, P0606, or U0100.

• ✔ Check Engine Light is on with no clear cause
• ✔ Engine cranks but refuses to start
• ✔ Unexplained drop in fuel economy
• ✔ Rough or unpredictable idling
• ✔ Hesitation or stumbling during acceleration
• ✔ Automatic transmission shifting issues
• ✔ Failure to pass an emissions inspection

A Straightforward Guide to Installation

Installing your new 2006 HHR Engine Control Module is a manageable task for a confident DIYer. On the 2006 HHR 2.4L, the ECM is located in the left-hand rear of the engine compartment. Always consult a service manual for your specific vehicle, but here are the general steps:

1. Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes to allow capacitors to discharge.
2. Locate the ECM: Find the module in the rear driver’s side of the engine bay. You may need to remove a cover or bracket for access.
3. Disconnect the Wiring: Carefully unlatch and remove the electrical connectors. These connectors have locking tabs, so be gentle to avoid breaking them. Inspect the connectors for any corrosion or damage.
4. Remove the Old Module: Unbolt the old ECM from its mounting bracket.
5. Install the New Module: Bolt the new, pre-programmed ECM into place.
6. Reconnect Everything: Securely plug the wiring harnesses back into the new ECM until they click. Reconnect your battery’s negative terminal.
7. Final Steps: Your vehicle may require a security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. This allows the new ECM to communicate with your vehicle’s anti-theft system.

Verified Vehicle Compatibility

This module, part number 12590032, is a direct replacement for a wide range of GM vehicles. It is interchangeable with service numbers 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. Please confirm your vehicle is on the list below to ensure proper fitment.