I am installing an EVO-ONE with TB-X and R-LINK2 on a Mazda 3 Hatchback 2025 2.5 Turbo (Push-to-Start).

Question

Hello Fortin Technical Support,

I am installing an EVO-ONE with TB-X and R-LINK2 on a Mazda 3 Hatchback 2025 2.5 Turbo (Push-to-Start).

Current firmware:

• EVO-ONE: 94.07x (latest available)
• TB-X: 2.02 (latest available)

Installation status:

• BCM connections completed according to the guide.
• OBD connections completed according to the guide.
• Passenger side connector connections completed according to the guide.
• TB-X connected.
• EVO-ONE programmed successfully.
• TB-X updated successfully.
• Key learning procedure completed successfully using the R-LINK2 and the OEM key with the battery removed, following the installation guide.

Symptoms:

• When I press LOCK-LOCK-LOCK from outside the vehicle, the EVO-ONE responds.
• Exterior lights turn on.
• The instrument cluster wakes up and the gauges move.
• The message “Key Not Detected” appears on the dashboard.
• The engine does not crank/start.
• After a few seconds, the OEM alarm is triggered.

Additional information:

• If I am sitting inside the vehicle with the OEM key present, LOCK-LOCK-LOCK will start the vehicle successfully.
• If I am outside the vehicle, remote start always fails with the “Key Not Detected” message.
• This suggests that the vehicle is recognizing the physical key but the bypass function is not being accepted during remote start.

Could you please advise:

1. Is there any known issue with Mazda 3 2025 Push-to-Start vehicles and firmware 94.07x / TB-X 2.02?
2. Is an additional DCRYPTOR or TB-X programming step required?
3. Should OEM Remote Control (Lock-Lock-Lock) work on this vehicle without an RF kit?
4. Is there a diagnostic procedure to verify that the TB-X is successfully transmitting the virtual key during remote start?

Thank you for your assistance.

Answer 1

Hello,

Can you please try the following:

- re flash 2.02 into the tb-x

- master reset the evo-x-one.

To reset the evo, hold down the programming button while plugging in the 4 pin connector from the t-harness and let go of the programming button on the red led.

Then press and hold the programming button again until all 3 led's start to cycle.

Perform this same reset a 2nd time but releasing on the yellow led.

From there re do the options, programming and re run dcryptor and re test in the vehicle.

Best regards

Comments

Is the RF kit necessary? Or can I use my OEM key?

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Thank you for your response.

 

Before purchasing an RFK411, I would like to confirm something.

 

The vehicle responds to Lock-Lock-Lock, the lights turn on, the cluster wakes up, and then the message “Key Not Detected” appears before the OEM alarm triggers.

 

Based on this behavior, do you believe the issue is related to the RFK411 not being installed, or does this symptom indicate that the TB-X bypass programming was not completed correctly?

 

Can OEM Lock-Lock-Lock remote start function on a 2025 Mazda 3 Push-to-Start without an RFK411, or is the RFK411 mandatory for remote start operation on this platform?

 

Thank you.

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Hello,

Fortin does not support 3x lock start on this vehicle, an rf kit is required, that being said I cannot confirm that an rf kit will resolve your current issue. Please try performing the steps i mentioned above.

Best regards