Citroen C4 - Tyre Pressure Sensor pairing

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

lancia58
Posts: 647
Joined: 30 Nov 2010, 08:02
x 4

Citroen C4 - Tyre Pressure Sensor pairing

Post by lancia58 »

Hi

Using my Lexia I detected that the right front sensor is not communicating. The Lexia writes that its pressure can not be retrieved , but it is weird that the Lexia indicates all pressure sensors voltage are OK . Anyway I bought a new sensor. Anyone knows how to pair it with the right front pres sue sensor receiver , I guess it is some thing like blue tooth pairing

Thanks
Zohar

User avatar
GiveMeABreak
Forum Admin Team
Posts: 20411
Joined: 15 Sep 2015, 19:38
x 2018

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by GiveMeABreak »

Unfortunately not. You need to have it paired using a tool called an 'Exciter' or similar. There is a 2 stage process, coding the sensor to the car which uses Lexia (and this means the lot usually having to be done again as happened to me), then it must be activated using the special tool. So you need Lexia and separate tool - or let the dealer do it.

The problem with having just one sensor paired is that it can cause problems with the others. I had a faulty reading (and mine are all newly replaced under warranty a while back, so I knew they are good), so the main dealer technician re-paired the sensor - but half a mile down the road the warning about a fault came on again with the same sensor. Took it back in and they re-paired it again, then the same thing happened 2 minutes later (as it needs a few minutes of driving to settle in). Took it back again and the technician re-paired ALL 4 sensors together and that solved it.

lancia58
Posts: 647
Joined: 30 Nov 2010, 08:02
x 4

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by lancia58 »

Hi

The ebay store that sold it to me told me that they activated it prior sending it to me , does it make any difference ?

Thanks

User avatar
GiveMeABreak
Forum Admin Team
Posts: 20411
Joined: 15 Sep 2015, 19:38
x 2018

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by GiveMeABreak »

Well that's a first on me - normally that may be the case for aftermarket sensors that are pre-programmed to the vehicle - but I've not heard of it being done on an OEM version. Regardless, you will still need to code it and pair it to the vehicle. You'll have to see if the procedure allows this when you go to code it. See what happens. What did you buy?

lancia58
Posts: 647
Joined: 30 Nov 2010, 08:02
x 4

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by lancia58 »

Hi
This is the link to the sensors I bought

https://www.ebay.com/itm/4x-Citroen-C4- ... 2008787893

lancia58
Posts: 647
Joined: 30 Nov 2010, 08:02
x 4

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by lancia58 »

Given the sensors where activated what is the pairing procedure - i.e. a guide to Lexia of how to do that .

Thanks

User avatar
GiveMeABreak
Forum Admin Team
Posts: 20411
Joined: 15 Sep 2015, 19:38
x 2018

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by GiveMeABreak »

5430T4 is the original part numbers for your car. Citroen sell these at £127.86 each inc. VAT over here. Eurocarcare sell the genuine ones at
£58.80 each (without VAT for non-EU countries), so £90 for 4 seems a bit too cheap to me. I appreciate the seller says these are for Jaguar Landrover vehicles (and they are marked as such), but if you have an issue - you'll need to contact the seller, as I've only ever ordered these and had them coded and paired at a dealer, because of the other issues I mentioned.

User avatar
GiveMeABreak
Forum Admin Team
Posts: 20411
Joined: 15 Sep 2015, 19:38
x 2018

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by GiveMeABreak »

lancia58 wrote:
23 Mar 2019, 21:00
Given the sensors where activated what is the pairing procedure - i.e. a guide to Lexia of how to do that .

Thanks
The sensors must be activated first as they are normally supplied and shipped dormant in sleep mode to avoid battery drain. If your seller says he has supplied these activated, then that should be fine.

Next you would need to go into Lexia / Diagbox and run a global test. Make sure you have communication with the TPMS ECU first. You will also need the sensor numbers for each module.

Once complete, you can select the TPMS ECU and go into that menu where you should find the relevant option(s). I think there are options to read the sensor data or to write the sensor data in - but I can't help you further as I leave this to the garage. The procedure should provide guidance though. Bear in mind that it will erase the existing sensor codes for any replaced.

Xantippa
Posts: 419
Joined: 05 Feb 2012, 16:51
x 15

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by Xantippa »

I had my wheels painted last winter and took off pressure sensors without taking account which one was for which wheel. Now I want to install new summer tires on these wheels, and would like to know what sensor is programmed for each wheel. Can I check this somehow with diagbox before reinstalling sensors?

User avatar
GiveMeABreak
Forum Admin Team
Posts: 20411
Joined: 15 Sep 2015, 19:38
x 2018

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by GiveMeABreak »

No - unfortunately they need reprogramming if the wheels have been rotated for example and you'll need the 'Exciter' tool or similar that works in conjunction with Diagbox to do this. So unless you know the correct position of the original wheels you'll have to re-programme them.

The C5 X7 Procedure:
A programming procedure is compulsory for the following components:
  • Wheel transmitter module
  • Main set of wheel transmitter modules
  • One additional set of wheel transmitter modules
The programming procedure requires the use of a special tool: "Tyre inflation valve forcer".
Programming procedure:
  • Overinflate the wheel to be programmed to 3.7 bars
  • Wait one minute
  • Deflate the wheel to reach the standard inflation pressure recommended by the manufacturer
  • Fit the special "tyre inflation valve forcing tool" onto the valve in order to inform the tool of the new pressure value in the wheel
This operation must be carried out for each wheel when programming a complete set of wheel transmitter modules or rotating wheels.

Xantippa
Posts: 419
Joined: 05 Feb 2012, 16:51
x 15

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by Xantippa »

OK, thanks. Then I´ll just have to live with it that TPMS can´t tell which wheel is underinflated if tyre puncture happens. In that situation it´s very easy to stop car and check which wheel seems underinflated. I´ve rotated my tyres earlier from front to rear and vice versa, so this isn´t nothing new.

And it´s always possible to underinflate tyres one by one, and find out that way which one is which. This requires some additional tyre changing though.

Xantippa
Posts: 419
Joined: 05 Feb 2012, 16:51
x 15

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by Xantippa »

This is getting interesting. I just took my winter tyres to tyre shop where they took old tyres off and sent wheels for painter. And there was no pressure sensors on winter wheels, eventhough tpms seems to work ok also on winter and gives no error. Somehow TPMS has been disabled so that it seems to work ok, eventhough there´s no sensors on winter wheels. After disabling and enabling TPMS from customer delivery acccessories menu in diagbox system can´t monitor summer wheels anymore, there doesn´t seem to be connection to sensors. Diagbox tells me to enable or disable TPMS also from BSI-menu, but I couldn´t find setting for TPMS under BSI. Any help?

User avatar
GiveMeABreak
Forum Admin Team
Posts: 20411
Joined: 15 Sep 2015, 19:38
x 2018

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by GiveMeABreak »

Which car are you talking about here - the X7 or the C4 to save confusion? :wink:

Xantippa
Posts: 419
Joined: 05 Feb 2012, 16:51
x 15

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by Xantippa »

Sorry, it´s my C5 X7. Our C4 doesn´t have TPMS.

User avatar
GiveMeABreak
Forum Admin Team
Posts: 20411
Joined: 15 Sep 2015, 19:38
x 2018

Re: Citroen C4 - Tyre Pressure Sensor pairing

Post by GiveMeABreak »

The system can be disabled in the BSI configuration by setting the 'Under Inflation Detection ECU' to absent. Re-enabling the function is the reverse, but also requires the 'direct without pressure display' setting to be configured in the 'type of under-inflation detection' in the 'configuration then definition driving information vehicle equipment' sub menu of the BSI.

However, the system will require programming using the exciter tool if you actually rotate the wheels to different positions. This is to ensure the positional information of the wheels is correct. If you memorise and keep the wheel positions the same, you can replace the tyres for winter / summer tyres and refit the wheels in the same locations - then you don't need to reprogramme them.

So if the system has actually been disabled at anytime in the ECU, programming is also required again. This is also the case when rotating wheels (changing locations of wheels).

The system can't work without the sensors being active and communicating, so I suspect it was just not reporting where you mentioned before it was working.

There is a park / stop mode where they know if the car is moving from the centrifugal force, which requires a minimum speed of 20 Km/h. When the car is parked up, it emits a data frame every 15 hours.

In driving mode, the data frame is transmitted every 1 minute or every 5 seconds if a leak is detected.