Mazda BT-50 FAQs
I replaced the starting battery in my 2014 Mazda BT-50 and now I have the powertrain light come on when driving
It's quite probable that the check-engine light was triggered by the worn out condition of the battery you replaced, not the brand new one being fitted. Such cars hate low voltages, and that's precisely what a worn battery produces. That said, changing the battery can sometimes cause a modern, computerised car to throw a fault code, and when that happens, the check-engine light will illuminate.
You can try to re-set the vehicle's computer by disconnecting the battery and leaving it for an hour. Then reconnect the battery and see if the light has disappeared. If it hasn't, it may be that the computer simply needs to relearn a few parameters after having been disconnected from the power when the original battery change was made. A decent drive might return things to normal.
But don't forget the basics: Check the condition and cleanliness of the battery leads, terminals and make sure that all the connections are tight. If there's still no joy, have the vehicle electronically scanned and let the computer tell you precisely what's wrong.
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Why does the powertrain light keep coming on in my 2014 Mazda BT-50?
Even though this is a light commercial vehicle aimed at working folks, these later utilities are quite sophisticated in terms of their drivelines. Which is another way of saying that there are dozens of sensors and electronic control modules, all of which can give trouble. The powertrain light is trying to tell you that something is amiss under the bonnet and the lack of power is the symptom that goes with it.
An electronic scan of the car’s on-board computer is the first step in determining precisely what’s wrong and, as well as throwing up the root cause of the problem, is very likely to save you a lot of time and money in the long run. Replacing random parts in the hope that you’ve identified the correct one is a great way to waste hours and hours and lots of dollars.
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Mazda BT-50: Automatic transmission flaring
You shouldn’t be using Park as a brake, that’s not what it is intended for, and could damage the transmission. If you want to stop the vehicle change down through the ratios manually and apply the brakes. The problem is unlikely to be the wiring harness, it sounds like it’s deeper within the transmission. Have your dealer check it, or take it to an automatic transmission specialist.
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