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Thread: SCBS TPMS and other faults on 2012 diesel

  1. #1
    Registered Member

    Mazda CX-5 Sport Nav auto 175

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    Sep 2018
    Location
    Shropshire, UK
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    10

    SCBS TPMS and other faults on 2012 diesel

    3 times in a week this has happened:- SCBS light came on then TPMS light, lost cruise control, then auto gearbox became jerky and manual option only displayed a small 'm'. Prior to that I noticed the car seemed to have lost power at low revs and under acceleration seemed to go in a slightly on/off pattern (hard to describe).
    Each time I've stopped disconnected the battery and reconnected and the faults have cleared, but the power loss has remained. Power at higher revs is still fine.

    I've replaced the battery after it first occurred. Car has recently had a new head gasket and full decarb, and has been running really well. Only annoyance has been all-to-frequent regens. Full mazda service history, oil level nowhere near the x mark.

    Before I commit to an expensive diagnostic, any clues as to what might be causing this? My researches show possble loose earth, MAR sensor, turbo underboist sensor, loose connections on body control module, or even the existence of an OBD2 device on the diagnostic port, which I'm about to remove.

    Help!!

  2. #2
    Banned Chris_Top_Her's Avatar
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    '15 CX-5 Miata GT AWD w/Tech 2.5L

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    Any codes read?

  3. #3
    Registered Member

    Mazda CX-5 Sport Nav auto 175

    Join Date
    Sep 2018
    Location
    Shropshire, UK
    Posts
    10
    No. I have an obd2 device but only Torque free version. Maybe disconnecting the battery cleared any codes?

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