Is Your 2007 Saturn Aura Plagued by Mysterious Electrical Gremlins?
If you’re dealing with a 2007 Saturn Aura that suddenly refuses to start, stalls for no reason, or has a check engine light that just won’t go away, you’re likely feeling the frustration that comes with a failing Engine Control Module (ECM). As the brain of your vehicle, when the ECM starts to malfunction, it can create a cascade of confusing and often intermittent problems that can be a nightmare to diagnose.
My Experience with Failing GM E55 Controllers
In my 20+ years as a technician, I’ve seen hundreds of these E55-style ECMs, used across a wide range of GM vehicles like the Saturn Aura, Pontiac G6, and Chevy Malibu. The symptoms are almost always the same: the car runs fine one day, and the next it’s dead in the driveway. Or perhaps you’re experiencing harsh shifting, poor fuel economy, or random warning lights. These issues are often caused by internal component failure within the ECM itself, typically due to years of exposure to engine bay heat and vibrations. The delicate solder joints and microprocessors simply can’t withstand the stress forever.
Common diagnostic trouble codes (DTCs) I frequently see pointing to a bad ECM include P0601 (Internal Control Module Memory Check Sum Error), P0606 (ECM/PCM Processor Fault), and various U-codes (like U0100) indicating a loss of communication between the ECM and other modules on the vehicle’s network.
Expert Pro Tip: Check the Basics First
Before you condemn your ECM, I always advise customers to perform a few simple checks. A weak or failing battery, corroded battery terminals, or a poor engine ground connection can mimic the symptoms of a bad ECM. I’ve saved people hundreds of dollars by finding a loose ground strap. Ensure your battery has a full charge and that all main power and ground connections are clean, tight, and free of corrosion. If those are good, the ECM is the next logical suspect.
The Direct-Fit, Programmed Solution
This isn’t just a replacement part; it’s a complete, ready-to-install solution. The biggest hurdle when replacing an ECM is the required programming. In the past, this meant having your car towed to a dealership and paying hundreds for them to flash the new module. We eliminate that step entirely.
When you purchase this ECM, you provide us with your vehicle’s 17-digit VIN. My team then uses official GM equipment to flash the module with the latest, most up-to-date software calibration specifically for your car. This ensures perfect compatibility and optimal performance, addressing any drivability concerns that may have been fixed by software updates since your car was new.
Key Benefits of This Programmed ECM:
- ✔ No Dealership Visit Required: This module arrives at your door ready to install. No extra fees or appointments for programming.
- ✔ Solves Common Issues: A direct fix for no-start conditions, stalling, erratic engine behavior, and persistent check engine lights related to ECM failure.
- ✔ Latest GM Software: We load the most current vehicle calibration, which can improve performance, fuel economy, and transmission shifting over the original software.
- ✔ Simple Installation: For the 2007 Saturn Aura, the ECM is located on the right-hand (passenger side) firewall. Simply disconnect the battery, unplug the connectors from the old module, unbolt it, and install the new one in its place.
Part Number Compatibility
This module is a direct replacement for several GM part numbers. If the part number on your original module matches any of the following, this is the correct part for you:
- ✔ 12589297
- ✔ 12597121
- ✔ 12603892
- ✔ 19210738
Verified Vehicle Fitment
This ECM is compatible with a wide array of GM vehicles. Please verify your specific model and options below. The location of the module can vary by vehicle.
- ✔ Saturn Aura 2007: 3.5L (RH firewall)
- ✔ Cadillac Escalade, ESV, EXT 2007: (LH front under battery)
- ✔ Chevrolet Avalanche 1500 2007: (LH front under battery)
- ✔ Chevrolet Corvette 2006-2007: (RH engine compartment)
- ✔ Chevrolet Equinox 2007: (LH engine compartment)
- ✔ Chevrolet Impala / Monte Carlo 2007: 3.5L or 3.9L (lower part of air cleaner box)
- ✔ Chevrolet Malibu 2007: 3.5L or 3.9L
- ✔ Chevrolet Silverado / GMC Sierra 1500, 2500, 3500 2007 (New Style): (LH front under battery)
- ✔ Chevrolet Suburban / GMC Yukon XL 1500, 2500 2007: (LH front under battery)
- ✔ Chevrolet Tahoe / GMC Yukon 2007: (LH front under battery)
- ✔ GMC Sierra Denali 2007 (New Style): (LH front engine compartment)
- ✔ Hummer H2 2007: (LH front under battery)
- ✔ Pontiac G6 2007: 3.5L or 3.9L (LH front engine compartment)
- ✔ Pontiac G8 2008: 6.0L
- ✔ Pontiac Torrent 2007: (LH engine compartment)