Is Your Saturn Aura Shifting Erratically?
If you’re experiencing delayed shifts, harsh gear engagement, or your 2007-2009 Saturn Aura is stuck in limp mode, the problem is likely a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for every gear change. When it fails, it can cause a host of frustrating and potentially damaging issues. In my 20+ years as a technician, I’ve seen how a faulty TCM can mimic a major transmission failure, leading to expensive misdiagnoses. This module is the key to restoring your vehicle’s performance.
The Direct-Fit Solution: A Pre-Programmed T42 TCM
This T42 Transmission Control Module, part number 24234503, is the definitive solution for your vehicle. We take the guesswork and extra cost out of the repair by pre-programming it to your specific Vehicle Identification Number (VIN). This means it arrives ready for a true plug-and-play installation, with no need for an expensive trip to the dealership for programming. It’s designed to meet or exceed original equipment standards for reliability and performance.
Expert Pro Tip: Before you condemn your TCM, take a moment to inspect the main connector harness. On many GM vehicles, including the Aura, the harness can get brittle from heat and vibration. Look for any chafed wires or corrosion on the pins. Cleaning the connector with a dedicated electronics cleaner and ensuring a snug fit can sometimes resolve intermittent communication issues that mimic TCM failure. It’s a five-minute check that could save you a lot of diagnostic time.
Common Symptoms of a Failing Saturn Aura TCM:
- โ Harsh, slamming, or erratic gear shifts.
- โ Vehicle is stuck in one gear (limp mode) and won’t shift up or down.
- โ Check Engine Light or Transmission Warning Light is on.
- โ Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults are present.
- โ A noticeable decrease in fuel economy.
- โ The transmission feels like it’s slipping or hesitating to engage a gear.
Plug-and-Play Installation: No Dealer Visit Required
Installing your new 2007-2009 Aura Transmission Control Module is a straightforward process you can do at home. For the Saturn Aura, the TCM is located on the front of the left-hand (driver’s side) frame rail.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the system’s memory.
- Locate the Module: Find the TCM mounted to the front of the LH frame rail in the engine bay.
- Disconnect and Remove: Carefully unplug the electrical connectors. Note the locking tabs to avoid damage. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Securely reconnect the electrical harnesses, making sure they click into place.
- Final Steps: Reconnect the battery terminal. While the module is programmed, it’s always a good practice to use a basic OBD2 scan tool to clear any stored fault codes from the vehicle’s memory. Start the car and take it for a test drive to confirm smooth shifting.
Guaranteed Compatibility and Reliability
This module is a direct replacement for a wide range of GM vehicles and is interchangeable with multiple part numbers, including 24252114, 24234503, 24230461, 24234274, and more. Built to strict quality standards and backed by our one-year warranty, you can be confident you’re getting a dependable part that will solve your transmission problems for good. Order today and get your Saturn Aura driving like new again.