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Focus Mk3 1.0 Ecoboost : handbrake, abs and traction light

Domovoi
Domovoi
in Ford Focus Club

Featured Replies

Hi everyone,

I bought a Ford Focus Mk3 1.0 Ecoboost in July 2023.

In december 2023 my battery died, so I got a new one (Varta D54) but after the replacement I got multiple problems:

-Handbrake, abs and traction control light always on
-Auto Start/Stop not working

I kept Driving the car as it was working normally, but two months ago the new already battery died.

I decided to buy an AGM (Bosch S5A08) and the lights are still on and the auto Start/Stop is still not working.

What I've tried:

-Reset BMS
-Read the code in Forscan with a vLinker FS, I have the Following DTC:
 B1252:11-28
 B1096:14-2F
 B1095:14-2F
 B105A:00-28
 C1D00:23
-Checked the ABS Wheel sensor in Forscan, everything seems to work
-Tried an ABS test in Forscan but I got an error (Test failed)

Does anyone know a bit more about these codes and what I should proceed with next?
Thanks in advance.

  • Quote


    Using a multimeter, what is the battery terminal voltage 1 hour after parking ?

  • Quote
    • Author

    I checked this morning and got 12.42v on the multimeter.

    The car also had some trouble starting when I pressed the clutch and the button. First time, nothing happened, but it worked on the second try.

  • Quote
    • Like 1
    • Author

    12.3v today

  • Quote

    What voltage do you get at the battery terminals when the engine is running at a fast idel? 

  • Quote
    • Author

    14.5v for a few seconds and it drops to around 12v at idle, it goes up when i press the accelerator 

  • Quote

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