Restore Smooth Shifting to Your Saturn Aura
Is your 2007-2009 Saturn Aura suffering from harsh shifting, getting stuck in gear, or throwing transmission-related codes? Before you consider a costly transmission replacement, the issue is very likely a failing Transmission Control Module (TCM). As a technician with over two decades of diagnostic experience, I’ve seen this exact scenario hundreds of times. Heat and vibration under the hood take their toll on these electronics, leading to frustrating and unpredictable driving behavior. This T42 TCM, part number YNXS, is the direct, reliable solution you need.
We take the guesswork and high cost out of the repair by pre-programming this module to your vehicle’s specific 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 restore the precise electronic control over your 4-speed automatic transmission, managing everything from shift points to torque converter lockup for optimal performance and fuel economy. This is the definitive fix for your 2007-2009 AURA TCM related issues.
Case Study: A Tricky Diagnosis
A customer brought in their ’08 Saturn Aura convinced the transmission was shot. It was slamming into gear and occasionally wouldn’t shift past 2nd. The codes were generic—a P0700 (Transmission Control System Malfunction). Instead of quoting a multi-thousand dollar transmission job, we checked the basics. The fluid was fine, but the TCM wasn’t communicating consistently. We swapped in a pre-programmed T42 module, cleared the codes, and the car drove like new. A 30-minute fix saved the customer a massive headache and expense. This is often the case with these vehicles.
Is Your Saturn Aura Showing These Symptoms?
- ✔ Harsh, erratic, or delayed gear shifts.
- ✔ Vehicle stuck in “limp mode” (usually 2nd or 3rd gear).
- ✔ Check Engine Light or Transmission Warning Light is on.
- ✔ Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults are present.
- ✔ Failure to upshift or downshift, leading to poor acceleration.
- ✔ A noticeable drop in fuel efficiency.
- ✔ Intermittent loss of communication with the module.
A Straightforward Guide to Installation
This is a job most DIYers can handle in their own garage in under 30 minutes. The 2007-2009 AURA TCM is located on the front portion of the left-hand (driver’s side) frame rail. Follow these simple steps for a successful installation.
- Safety First: Disconnect the negative terminal from your car’s battery to prevent any electrical shorts and to help reset the vehicle’s electronic systems.
- Locate the Module: Find the TCM mounted to the LH front frame rail. It will have several electrical connectors attached.
- Disconnect and Remove: Carefully unplug the wiring harnesses from the old TCM. Then, unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Securely plug in all the wiring harnesses, ensuring they click into place.
- Final Steps: Reconnect the negative battery terminal. While not always required, it’s best practice to use a basic OBD2 scan tool to clear any stored fault codes from the computer’s memory. Start the car and take it for a test drive to confirm the shifting issues are resolved.
Verified Vehicle Compatibility
This module is a direct fit for the following vehicles, but this listing is specifically for the 2007-2009 AURA TCM. Please verify your vehicle is on this list. It is interchangeable with part numbers: 24252114, 24234503, 24230461, 24234274, 24235340, 24235754, 24238856, 24239224, 24239926, 24240400, 24241806, 24243901, 24243921, 24255280, 24256960, 24235732, 24235753, 24240449, and YNXS.
- Saturn Aura: 2007-2009 (Transmission; LH frame rail front)
- Chevrolet Cobalt: 2006-2010 (Transmission; LH strut tower)
- Chevrolet HHR: 2006-2011 (Transmission; LH engine compartment)
- Chevrolet Impala: 2006-2011 (Transmission; lower air cleaner housing)
- Chevrolet Malibu: 2006-2010 (Transmission; LH frame rail)
- Pontiac G6: 2006-2010 (Transmission; LH strut tower)
- And many other GM models from 2006-2014.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
Do I need to have this module programmed by a dealer?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for plug-and-play installation.
What tools do I need for the installation?
Do I need to have this module programmed by a dealer?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for plug-and-play installation.
Is there a core charge for my old part?
Do I need to have this module programmed by a dealer?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for plug-and-play installation.
Will this fix a P0700 check engine light code?
Do I need to have this module programmed by a dealer?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for plug-and-play installation.
What is the warranty on this part?
Do I need to have this module programmed by a dealer?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for plug-and-play installation.