Product Details

This is a repair service for a Mazda 5 Transmission Control Module (TCM) experiencing failure. Mazda TCM, also referred to as TCU, can be costly to replace. Our repair service is designed to address all known issues with the Mazda TCU by not only fixing problem areas on each circuit board but also preventatively replacing known problematic components.

Common Mazda 5 TCM Failure Symptoms

Harsh downshifting or upshifting
Erratic, unpredictable shifting
Transmission shifts late or does not shift at all
Transmission stays in 3rd gear/safe mode only
Intermittent transmission speed sensor signal issues
Check Engine (CEL) and Automatic Transmission (AT) warning lights come on
DTC codes U0101, U0100 - Lost communication with TCM
Error U0073 - Control module communication bus "A" off

⚠ If your Automatic Transmission (AT) light is on, continued driving could damage your transmission.

Our repair is designed to address the above issues. If you are having any problems other than this, please text or call us at 800-547-2049.

Vehicle Fitment

2006 Mazda 5 2.0L, 2.3L, 2.5L
2007 Mazda 5 2.0L, 2.3L, 2.5L
2008 Mazda 5 2.0L, 2.3L, 2.5L
2008 Mazda 5 2.0L, 2.3L, 2.5L

Benefits of our TCM Repair Service

Fast turnaround: Industry-leading repair speed
No-Hassle warranty: Confident repairs deserve confident guarantees
World class support: Commitment, quality, and care that set us apart
Upgraded components: We use high quality replacement components, OE spec or better
No programming required: Save time and money with our Plug and Play solution
USA remanufacturing and repair: Located in Greenville, SC

Part Numbers

Below are a list of known model numbers. This is NOT a complete list so if you do not see your part number listed please call us at 800-547-2049.

L34H189E1 L34H189E1A L34H189E1B L34H189E1C LF6B189E1 LF6B189E1A LF6B189E1B LF6B189E1C LF7T189E1 LF7T189E1A LF7T189E1B LF7T189E1C

LF7T189E1D LF7T189E1E LF7T189E1F LF7T189E1G LF7T189E1H LF8C189E1 LF8C189E1A LF8C189E1B LF8C189E1C LF8C189E1D LF8C189E1E LF8C189E1F

LF8C189E1G LF8C189E1H LFBN189E1 LFBN189E1A LFBN189E1B LFBN189E1C LFBN189E1D LFBN189E1E LFBN189E1F LFBN189E1G LFBN189E1H LFBW189E1

LFBW189E1A LFBW189E1B LFBW189E1C LFBW189E1D LFBW189E1E LFBW189E1F LFBW189E1G LFBW189E1H LFS3189E1 LFS3189E1A LFS3189E1B LFS3189E1C

How This Works

At Circuit Board Medics, our focus is on quality repairs, fast turnaround, and excellent communication. One key to achieving these goals is ensuring that we have customers' contact information and payment before beginning any repair order. Disclaimer: We are not responsible for lost, delayed, or non-repaired items shipped to our facility without an order number.

When you need a repair, follow these simple steps:

Find your product on our website.
Match your symptoms with our descriptions.
Place your repair order.
Ship your item to us.
We'll repair your board and ship it out to you!

Benefits of our Repair Service

Fast Turnaround Industry-leading repair speed
No Core Deposit Skip the extra steps and upfront fees
Upgraded Components High-quality OE spec or better
Troubleshooting & Support Commitment, quality, and care
USA Repair & Remanufacturing Located in Greenville, SC

Warranty

1 Year Warranty

Our no-hassle warranty covers your repair for a full year. If the repair fails anytime within a year, we will repair the item again. In the rare occasion that the item is not repairable, we will either replace the circuit board entirely or refund the cost of the repair, at our discretion. All Circuit Board Medics warranties are non-transferable and apply only to the original purchaser.

Circuit Board Medics LLC is not liable for and hereby excludes any and all indirect, incidental, special, or consequential damages related to the use of services rendered by Circuit Board Medics LLC. Due to the nature of electronics and circuit board repair, Circuit Board Medics LLC cannot guarantee components and circuitry unrelated to the specific repair of symptoms covered in the description of services. In the event that an item is not functioning properly after repair, the customer will have the option to return it to Circuit Board Medics LLC for further testing. It is the responsibility of the customer to contact Circuit Board Medics LLC for return authorization before returning the item.Shipping fees for items being returned for testing are the responsibility of the customer. If the item has failed due to failed components or faulty workmanship, Circuit Board Medics LLC retains the right of choice to repair the item at no extra charge or offer a refund of the cost of repair initially paid to Circuit Board Medics LLC by the customer. If it is determined that the failure occurred due to external causes (i.e. faulty wiring, improper installation, failed external components, etc.), any guarantee, written or implied, will be considered null and void. Circuit Board Medics LLC is released of all liability, without limitation, for loss of profits, use, income, product, production, increased cost of operation, rental vehicle fees, or other loss arising in connection with the use of services rendered by Circuit Board Medics LLC. In no circumstances will Circuit Board Medics LLC be held liable or responsible for damages exceeding the total cost of repair paid to Circuit Board Medics LLC by the customer. This warranty is non-transferable and applies only to the original purchaser. This warranty is limited by the lifespan of the product or system in which it is being installed (i.e. when an automobile reaches the end of its useful life, a rebuilt instrument cluster cannot be transplanted into a replacement vehicle with continuous warranty coverage). Circuit Board Medics LLC makes no guarantee of the completeness of accuracy of information offered for troubleshooting assistance and will not be held responsible for the improper diagnosis of components by others.