That's exactly what you've got to do?
The vast majority of premium cars only got this feature within the last 5-6 years or so, so I'm not sure why you're surprised an 8 year old Mazda 3 doesn't have it.
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What have you done to your car today?
- Thread starter mattyprice4004
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That's exactly what you've got to do?
The vast majority of premium cars only got this feature within the last 5-6 years or so, so I'm not sure why you're surprised an 8 year old Mazda 3 doesn't have it.I'm amazed it has anything other than a wheel speed sensor based system for deflation detection tbh. If that's what it is I'm even more surprised it hasn't chucked a bunch of abs codes etc
Can't ford diagnostic stuff read Mazda ECU's of that era? You can buy a forscan ready obd2 adapter quite cheaply
Can't ford diagnostic stuff read Mazda ECU's of that era? You can buy a forscan ready obd2 adapter quite cheaply
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That's exactly what you've got to do?
TPMS has sensors in the valves which measure the pressure. Every car I have ever driven with TPMS fitted has provided pressure information for each car, even non premium stuff like Ford. It's been mandatory in the USA for years so is actually less new than you'd think
GM have been fitting systems capable of showing individual tyre pressure for 25 years.
The more crude non TPMS system uses the abs wheel speed sensors and therefore won't provide pressure information but neither does it have special sensors to go wrong...
Oh yes. This Mazda system can indeed tell you the exact pressure for each one.
But Mazda neglected to let the driver see this.
Only Mazda can see it via their diagnostic equipment. They can see the pressure for 1-4.
I might pop there tomorrow and have them check and tell me which one. Hopefully get them to do it for free....
No, leather colouring and non gloss finisher
.. Or you could take 60 seconds out of your day and check the pressures?
Yeah, and even better, it'll make a start on figuring out what sensor relates to what wheel yourself. Take 30 mins and figure them all out.
Diagoro has stated he wants to figure out which TPMS sensor has died, one presumes there is no obviously flat tire and yet one of the sensors reckons there's an issue. If its a duff sensor and all of the tyres are fully inflated then I'm not sure what checking pressures will achieve? There's clearly not an "obvious' flat which is why he's talking about a duff sensor rather than having an actual puncture?
If his "TPMS" is telling him which sensor is out, i.e. sensor 3, but that doesn't really equate to a specific wheel, he could intentionally flatten a tyre. Either there will be no change, and he has figured out which wheel has sensor 3, or another sensor trips, and he then knows what wheel that sensor is, and he can work from there to figure out each wheel / sensor combo. Sure, it might take a while, or not if he luckily gets it first time, but it'll save him the £75 or whatever Mazda want to stick it on their diagnostics.
Of course, a simple check of tyre pressures first may show that one wheel is maybe ~5psi less than the others. Something that may not be visibly obvious, but enough to trip the TPMS.
Of course, a simple check of tyre pressures first may show that one wheel is maybe ~5psi less than the others. Something that may not be visibly obvious, but enough to trip the TPMS.
What?
I think you have misunderstood.
One of the sensors has died... As in doesn't read anything. Which has thrown up the dash light and added DTC codes.
Nothing to do with the actual pressures.
Mazda are the only ones I can find with the OBD scanning equipment that can read the pressures based on the sensors readings.
This is required to identify which week has a dead sensor. I have to alter each wheels psi. Note which wheel has what and then ask Mazda to tell me what PSI corresponds to each sensor value.
I should then be able to identify which wheel I have to change the sensor on.
It's a real faff... And if Mazda want to charge me I will prob just have tyre place swap all the sensors as it would be cheaper.
Again, would deflating the tyres one by one not then trip the working sensors, and then show you which sensor has actually died? So again, not really costing you anything, other than time, and letting you figure out which sensor is in each wheel, and allow you to change the faulty sensor only.
Or does the system not identify each sensor individually, in which case, how would you know its "sensor 3" that has died?
I think the issue here is that there's a simple tps monitoring saying "low pressure" on any of the tires.. it does not identify which tyre it is so defeating all tyres is going to result in nothing. Kinda like my Z4. It's either fine or there's a low pressure warning, it's up to you to figure out which tyre that is haha.
Good idea!
I will give this a go.
Unfortunately I have a feeling it may not work. It identifies each sensor like this:
2011 is sensor position 1
2012 is sensor position 2
2013 is sensor position 3
2014 is sensor position 4
For example the code I have is C2013-87
This means that sensor position 3 is not registering with the system.
Oh and I had code C0077 which was an old code for low pressure. Unfortunately it wasn't latched onto any single sensor position. All tyres were fine pressure wise too so that didn't help.
What I could do... Is find a spare wheel without a sensor. And swap them out one at a time. Do a 10 mins drive and see if it throws the code and check. I just need to find a spare tyre.
Considering a lease, to keep myself out of trouble for a few years... 
A Polo GTI 1.8 TSI DSG for 180~ a month with 1800~ down for 3 years, 10,000 miles a year sounds tempting.
Would it feel like I'm driving someone elses car though? I'm not sure how I feel about it.
A Polo GTI 1.8 TSI DSG for 180~ a month with 1800~ down for 3 years, 10,000 miles a year sounds tempting.
Would it feel like I'm driving someone elses car though? I'm not sure how I feel about it.
So on Saturday I changed headlamp bulbs, didnt re-seal the back properly and water got in. Now I have what I believe to be a failed ballast and a headlight full of condensation.
So now a simple job has become a bumper off job to sort out, and hope its a failed ballast rather than anything more serious i.e. wiring issues.
So now a simple job has become a bumper off job to sort out, and hope its a failed ballast rather than anything more serious i.e. wiring issues.