Restore Peak Transmission Performance in Your Saturn Aura
Is your 2007, 2008, or 2009 Saturn Aura suffering from frustrating and potentially damaging transmission issues? Symptoms like harsh, delayed, or erratic shifting, getting stuck in a single gear (limp mode), or an illuminated Check Engine Light with transmission-specific codes are common signs of a failing Transmission Control Module (TCM). This critical component acts as the brain for your automatic transmission, and when it malfunctions, it can disrupt your entire driving experience. This genuine quality GM T42 TCM, part number 24241806, is the definitive solution to restore the smooth, reliable operation you expect from your vehicle.
From the Diagnostic Bay
We recently had a 2008 Saturn Aura come into the shop with classic symptoms of a bad transmission. The owner was convinced he needed a complete rebuild after another shop quoted him thousands. The car would slam into gear and occasionally refuse to shift past 2nd. After hooking up our diagnostic scanner, we saw a flurry of solenoid circuit codes. While this often points to the solenoids themselves, experience with these GM platforms told us to check the source: the TCM. We swapped in a VIN-programmed T42 module, cleared the codes, and took it for a test drive. The shifting was immediately smooth and precise. The original TCM had failed internally, sending faulty signals. This simple replacement saved the customer a massive, unnecessary repair bill.
Common Symptoms of a Failing Saturn Aura TCM
A faulty TCM can manifest in various ways. If you’re experiencing any of the following, it’s highly likely your module is the culprit. This component is designed to solve these exact problems, getting you back on the road with confidence.
- ✔ Harsh or Erratic Shifting: Abrupt, jerky gear changes or unpredictable shifting patterns during acceleration or deceleration.
- ✔ Delayed Engagement: A noticeable pause when shifting from Park into Drive or Reverse.
- ✔ Stuck in Limp Mode: The vehicle may be stuck in 2nd or 3rd gear to prevent further damage, resulting in poor acceleration and high RPMs at cruising speed.
- ✔ Warning Lights: The Check Engine Light or a dedicated transmission warning light will often illuminate on the dashboard.
- ✔ Diagnostic Trouble Codes (DTCs): Common codes associated with a bad TCM include P0700 (Transmission Control System Malfunction) and various solenoid-specific codes (e.g., P0750, P0751).
- ✔ Poor Fuel Economy: Inefficient shifting and torque converter lockup can lead to a significant decrease in your vehicle’s gas mileage.
The Power of VIN Programming
What sets this module apart is our professional VIN programming service. Unlike a standard part from a dealership or local auto parts store, this TCM arrives at your doorstep specifically calibrated for your vehicle. By providing your Vehicle Identification Number (VIN) during checkout, we flash the module with the latest GM software updates tailored to your Saturn Aura’s exact specifications. This critical step ensures:
- Plug-and-Play Installation: No need for expensive trips to the dealership or a specialized shop for programming. Simply install the module, and you’re ready to go.
- Optimal Performance: The correct software ensures your transmission shifts at the precise points intended by the manufacturer, maximizing efficiency and performance.
- Complete Compatibility: VIN programming eliminates communication errors between the TCM, the Engine Control Module (ECM), and other vehicle systems.
This T42 TCM is a direct replacement for a wide range of original part numbers, including 24252114, 24234503, 24241806, and many more, making it a versatile solution for numerous GM vehicles from 2006-2014. For the 2007-2009 Saturn Aura, this module is located on the left-hand front frame rail, making access relatively straightforward. Installation typically takes less than an hour and requires basic hand tools. Remember to disconnect the battery before beginning the replacement to ensure the vehicle’s electronic systems are reset. Once installed, clear any remaining DTCs with a standard OBD2 scan tool.
Frequently Asked Questions
Do I need to have this TCM programmed by a dealer?
No. This module is delivered to you pre-programmed to your vehicle’s specific VIN. This makes the installation process plug-and-play, saving you time and the high cost of dealership programming.
What causes a Saturn Aura TCM to fail?
TCM failure can result from several factors, including electrical shorts, excessive heat and vibration from the engine bay, and age-related degradation of internal electronic components and solder joints.
Is this part difficult to install?
For the 2007-2009 Saturn Aura, the TCM is located on the front left frame rail. Installation is considered straightforward for someone with basic mechanical skills and can often be completed in under an hour. Always disconnect the battery before starting work.
Will this fix my P0700 error code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While this module often resolves the root cause that triggers a P0700 and other related codes, you should always perform a full diagnostic scan to confirm the TCM is the issue.
Is there a core charge for this part?
No, there is no core charge required for this transmission control module. You can keep your old part without the hassle of returning it.