Hi all

 

I have a problem with my wife's 65 plate Fabia (1.4 TDI) Tyre pressure warning.

 

The other day the warning came up on the motorway. We stopped at the services and checked all pressures low-ish but ok. (2.2 bar all around)

We pumped them up to 2.6 all around, reset the system and drove home.

 

Next day, wife drives to work and gets there all fine.

She goes to drive home and the warning came on as soon as she started the engine.

When she gets home I check the pressures and they are all bang on 2.6bar. 

Next (cold) morning we reset the system on the car and she drives to work.

She goes to drive home and same thing happens (warning comes on as soon as the engine is started)

Checked pressures when she got home and bang on 2.6 bar.

 

Any advice would be appreciated.

 

Thank you

Is this the only warning light lit and message?

 

IIRC the car should show you which wheel(s) the problems is at, Infotainment 'CAR' menu - or use a VW appropriate scan tool with a program on it for your model and age of car, make sure the program is fully up to date and the scan tool and car batteries aren't low in charge.  There are member of Briskoda that can offer to do scan tool reports and more.

 

It could be a fault at the sensor or it connection or wires or wires or connection(s) elsewhere, you need a scan tool or someone with a multimeter and bulb tester perhaps with the attitude to properly diagnosis, and check and cross-reference that diagnosis, then make a repair and check and cross-reference that repair resolves your issue.

 

It might be something simpler but you need to know which corner(s) of the car the problem(s) is at to have a good physical look at it using a good quality torch or light.

 

Good luck, let us know how you get on.

  

4 hours ago, pbandeira said:

(warning comes on as soon as the engine is started)

Tyre pressures are not checked on start up as the TPMS system is passive.

You need to start driving the car for it to notice a problem with low pressures.

 

Thanks. AG Falco

 

4 hours ago, pbandeira said:

(warning comes on as soon as the engine is started)

But the warning light should come on when you turn the ignition on to demonstrate that the warning light works.

It then self tests just the system ( not the pressures ) and should then go off unless you have a fault.

 

Thanks. AG Falco

Thanks for the help so far.

 

I scanned the car with VCDS and got the following:

 

Address 03: ABS Brakes (J104)       Labels:. 6R0-907-37x-ESP90.clb
   Part No SW: 6C0 907 379 G    HW: 6R0 907 379 BA
   Component: ESP9.0i       H03 0003  
   Serial number: 08506211150402
   Coding: 43F5287D892933C10916106A0057C21491CC9008000BC8F98F00
   Shop #: WSC 13765 031 00043
   ASAM Dataset: EV_Brake1ESP90iBOSCHPQ26 100018
   ROD: EV_Brake1ESP90iBOSCHPQ26_SK26.rod
   VCID: 33330D50BBB27C729A1-8066

1 Fault Found:
0608 - TPMS Display 
          C1146 F0 [10001001] - Not Available
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 4
                    Fault Frequency: 2
                    Reset counter: 253
                    Mileage: 126909 km
                    Date: 2024.11.24
                    Time: 10:09:20

 

I did reset the codes but it came back straightaway

 

Any suggestions would be very welcome

 

Thank you

 

 

I don't know the VCDS at all, can you interrogate it more and get it to a corner, or it might be at one of the modules.  You might need a wiring diagram and see what wires and connections and other comes and goes from J104.

 

51 minutes ago, pbandeira said:

C1146 F0 [10001001] - Not Available

Look that up.

 

52 minutes ago, pbandeira said:

MIL ON - Confirmed

Does this mean the MIL light is also on?

 

You may need to go to the VCDS forum to get a full interpretation of your read out but you can use other diagnostic tools like your eyes and hands and have a look at behind the wheels, if you're lucky it might just be muck/debris around, or connection(s) to a wheel sensor(s), or you might have check things out with a multimeter.

 

Have you done anything different to your wheels or tyres or brakes or anything on the car just prior to this warning?

 

Otherwise you could present the FULL scan report in the VCDS forum and see if anyone can spot any anomalies in it that may cause the computer programs to get their knickers in a twist or highlight the area to look at and test.

 

On an aside, assuming accurate readings, 2.6 bar, is 38 psi in old money, is a bit higher than book running pressures, just above eco setting for 17" wheels, perhaps the heavy diesel engine suits a little more.  From my wife's 2015, 1.2 TSI petrol, Mk3 Fabia. - 

 

Just wondering if ambient temperature  might be a factor. Pressures can rise 5 psi from cold by driving a few miles. So TPMS could report low pressure when first driving but tyres  show correct pressure when checked after driving.

The TMPS system isn't the one that gets reports from inside the tyres showing pressures, it's wheel sensors so revolution counters, in with the abs.

 

Hi So I found some info online pointing at a service bulletin

 

for example:

Known Problem : TSB 2039142 - Update to Index L (SW 0023)

 

However, I can't seem to find any info on how to access this TSB?

Would anyone have any ideas?

 

thanks

7 hours ago, pbandeira said:

Hi So I found some info online pointing at a service bulletin

 

for example:

Known Problem : TSB 2039142 - Update to Index L (SW 0023)

 

However, I can't seem to find any info on how to access this TSB?

Would anyone have any ideas?

 

thanks

 

May be a good idea to ask your local skoda dealership to lookup this bulletin if nobody on here can access it.

 

From a quick look on the VCDS forums, it is said  that after resetting the system you must drive the car for a bit to calibrate it, so if you've reset it and only driven say a mile to the shops, it may not have properly calibrated.

 

 

 

Do you have access to coding such as OBDEleven?

Looking on mine, I have the options to "Reset to factory setting of tire pressure monitoring display", "Reset tire pressure monitoring display warnings". These may just be what you can access through the screen, though.