Hi all
I have a 2010 Mazda 5 that's done over 130k miles. Last week the gearbox went into safe mode (seemed to shift into 3rd and stay there) and I pulled codes and it gave a TCM communication failure. I looked the cost of a new one, and decided instead to try a replacement from upfix.com. https://www.upfix.com/product/tcm-ma...epair-tcm-tcu/
It arrived and was easy to fit. While I tested things out, I attached to the firewall instead of reaching back on top of the gearbox. I drove it for a few blocks, and the AT light, but not the engine light, came on. I contacted upfix and they recommended changing the transmission fluid if had never been done (it hasn't) and then reseting the ECU/TCM. I've done both, but the AT light still comes on. My local garage has a better code reader and pulled the following codes.
P0732:FF Transmission Gear #2 incorrect ratio
P0734:FF Transmission Gear #4 incorrect ratio
The model numbers for the TCMs are slightly different and UpFix say they've programmed the replacement for my car.
Anyone have any advice? I've emailed UpFix for a replacement, under the assumption the unit they've sent is not programmed correctly. However, can those codes be indicative of another issue? How common is it for this car to have a failed gearbox at this age? We live in San Francisco, and the car gets quite a work out going up and down the hills and some of the roads here are in the middle of repair due to the bad weather.
I have a 2010 Mazda 5 that's done over 130k miles. Last week the gearbox went into safe mode (seemed to shift into 3rd and stay there) and I pulled codes and it gave a TCM communication failure. I looked the cost of a new one, and decided instead to try a replacement from upfix.com. https://www.upfix.com/product/tcm-ma...epair-tcm-tcu/
It arrived and was easy to fit. While I tested things out, I attached to the firewall instead of reaching back on top of the gearbox. I drove it for a few blocks, and the AT light, but not the engine light, came on. I contacted upfix and they recommended changing the transmission fluid if had never been done (it hasn't) and then reseting the ECU/TCM. I've done both, but the AT light still comes on. My local garage has a better code reader and pulled the following codes.
P0732:FF Transmission Gear #2 incorrect ratio
P0734:FF Transmission Gear #4 incorrect ratio
The model numbers for the TCMs are slightly different and UpFix say they've programmed the replacement for my car.
Anyone have any advice? I've emailed UpFix for a replacement, under the assumption the unit they've sent is not programmed correctly. However, can those codes be indicative of another issue? How common is it for this car to have a failed gearbox at this age? We live in San Francisco, and the car gets quite a work out going up and down the hills and some of the roads here are in the middle of repair due to the bad weather.
