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    Mazda BT-50 2010: 4WD icon shows up on the dash

    Mazda Mazda Advice Mazda BT-50 Mazda BT-50 Advice Mazda BT-50 2010

    My 2010 Mazda BT-50 4WD manual keeps showing the 4WD icon on the dash. After 100 kms or so it starts to flash. What do I do about this?

    Answered by CarsGuide
    23 February 2020
    David Morley

    I’ve hard of this before and it usually seems the cause has something to do with the wiring that controls these warning lights. It could either be a bad earth or a broken wire, but in most cases the symptoms are the same; a flashing 4WD indicator light when the vehicle is in two-wheel-drive. I’ve also heard of dud ABS sensors triggering the same, or similar, warning lights on the dashboard.

    These vehicles use servos to engage four-wheel-drive (unlike older vehicles which used a manual lever pulled on by the driver) so there’s a level of electronics involved. And that always means potential problems as the cars age, particularly a vehicle that may have seen its share of rough stuff over the years.

    The best advice is to have a Mazda specialist interrogate the on-board computer, at which point the car should give up all its dirty little secrets, including why it thinks it’s in four-wheel-drive when it’s not.

    Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.
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