Restore Smooth Shifting to Your Saturn Aura with a Plug-and-Play TCM
If you’re dealing with the frustration of a 2007-2009 Saturn Aura that shifts harshly, gets stuck in gear, or throws transmission-related check engine lights, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen countless drivers spend a fortune at dealerships for what is often a straightforward fix: a faulty Transmission Control Module (TCM). This replacement T42-style TCM, part number 24241806, is the definitive solution to get your vehicle driving like new again, without the hassle or high cost of dealer programming.
The TCM is the brain of your automatic transmission, responsible for every gear change and torque converter operation. When it fails, the symptoms can range from annoying to dangerous. Our module comes expertly programmed to your vehicle’s specific VIN, ensuring it works perfectly right out of the box. This isn’t just a part; it’s a complete, ready-to-install solution for your transmission woes.
From the Diagnostic Bay: The Ghost in the Transmission
A customer brought in a 2008 Saturn Aura with a complaint that stumped two other shops. The car would intermittently refuse to shift out of 2nd gear, but only after driving for 20+ minutes. There were no consistent trouble codes, just a generic P0700 (Transmission Control System Malfunction) that would pop up and disappear. We checked the fluid, solenoids, and wiring—all perfect. On a hunch, I monitored the TCM data stream on a long test drive. Just as the problem started, the TCM’s communication went haywire. Heat soak was causing an internal failure. We installed one of these pre-programmed modules, and the problem was solved instantly. The customer was thrilled to have a reliable car back without paying for a new transmission.
Is Your Saturn Aura Showing These Transmission Problems?
A failing TCM can mimic other transmission issues. Before you consider a costly internal repair, check if your vehicle is exhibiting these common signs of a bad 2007-2009 Aura TCM:
- âś” Harsh, slamming, or erratic gear shifts.
- âś” The vehicle feels stuck in one gear (often called “limp mode”).
- âś” Delayed engagement when shifting from Park to Drive or Reverse.
- âś” An illuminated Check Engine Light or Transmission Warning Light.
- âś” Diagnostic Trouble Codes (DTCs) such as P0700, P0750-P0758 (solenoid codes), or communication errors.
- âś” Poor acceleration and a sudden drop in fuel economy.
- âś” The transmission seems to slip between gears.
Simple Installation to Restore Your Ride
One of the best features of this module is its straightforward installation. For the DIY mechanic, this is a job you can complete in your driveway in under 30 minutes. For the Saturn Aura, the TCM is typically found on the front of the left-hand frame rail.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and help reset the system.
- Locate the Module: Find the old TCM on the LH front frame rail. It will have several electrical connectors attached.
- Disconnect and Remove: Carefully unclip the wiring harnesses. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the wiring harnesses.
- Final Steps: Reconnect the battery terminal. While our programming handles the critical setup, it’s good practice to use a basic OBD2 scanner to clear any stored fault codes from the vehicle’s memory.
With no core charge, you don’t have to worry about the hassle and expense of sending your old part back. It’s a simple, effective repair.
Verified Fitment for Your Vehicle
This T42 Transmission Control Module is a direct replacement for part number 24241806 and is compatible with a wide range of General Motors vehicles from 2006-2014. While this page is focused on the 2007-2009 Aura TCM, it also fits the following models. Please verify the location note for your specific vehicle:
- 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)
- Chevrolet Silverado & GMC Sierra (2007-2013): Transmission; (next to battery)
- Chevrolet Tahoe & GMC Yukon (2007-2009): Transmission; (next to battery)
- Pontiac G6 (2006-2010): Transmission; (LH strut tower)
- And many more GM models. This part interchanges with: 24252114, 24234503, 24230461, 24234274, 24239224, 24240400, 24256960, and others.
Frequently Asked Questions
Do I need to take my car to the dealer for programming?
No. This module comes fully programmed to your vehicle’s VIN. It is a true plug-and-play solution, saving you the time and expense of a dealership visit.
What information do you need from me to program it?
We require your vehicle’s 17-digit Vehicle Identification Number (VIN) at checkout. This ensures we can load the correct factory software for your specific car.
Is this part difficult to install myself?
Not at all. For most DIYers with basic tools, this is a simple job that takes less than 30 minutes. The module is easily accessible in the engine bay on the Saturn Aura.
Will this fix a P0700 trouble code?
A P0700 code simply means the TCM has detected a fault. In many cases where the TCM itself is the source of the problem, replacing it with our programmed module will resolve the P0700 code and any related transmission codes.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old part or dispose of it without the hassle of returning it.