Diagbox Lexia 3, Graphic functionality not available.

[Bob_V]

Marc

Updates installed in sequence with parameter changing and testing at each level. No effect at all on the problem.

I have checked all the relevant parameters of the Parking and BSI ECUs and all appear normal and correct. I cannot determine whether the Parking ECU is sending out the correct information or whether the BSI or Telematics are interpreting the information incorrectly. I have tried removing a parking sensor and also fitting a faulty sensor both these faults are detected correctly by the Parking ECU.

I am now considering installing Diagbox on my current laptop as a dual boot Windows 7 32 bit to see if I can get the graphics to work so that I can see the full operation of the parking sensors. As I have not been able to see the graphics results before I am not sure if it will be worth the effort. This is getting to be a PITA. Two cars with exactly the same fault!! Also, both cars have the same software and maps installed.

As an aside, both these cars have Lane Departure detection. Where are the sensors to detect lane departure or are the same parking sensors used for this function?

Bob.

[GiveMeABreak]

Hi Bob - no, the Lane Deaprture Warning System (AFIL) Lateral Trajectory Monitoring sensors are located on the underside of the front skirt and sides, 1 to 6 as shown:

Going back to the parking sensor issue - I did some more research on the matter and it would seem that the Peugeot Planet 2000 Software version 22 is the one that will correct this. The issue I have now is tracking down the PP2000 version taht is encapsulated within which Diagbox version. I suspect it may be diagbox version 5, but I will try and confirm this later - it is a known issue and related to some of the Chinese clone VCIs and how the write invalid data into the ECU.

Don't exhaust yourself with trying anything else for now - I will try and see which version of the software has V22 and let you know. I have some things to do for other members this morning brisfly, then will have a look at this for you.

[Bob_V]

Marc

I got my Diagbox from Jim at EasyDiagnostics. Is Jim aware of this problem?

Bob.

[GiveMeABreak]

It won't be an issue for Jim unfortunately Bob as a reseller - it seems to be a problem with some clone interfaces (which are not sanctioned by PSA) and / or the 'modified' software made by individuals that allow DIYers to have a version we can use. They are generally very reliable - although of course there are bugs in the software that are fixed in each version of the software that is released which then has to be 'modified' again for users of the non-official kit. Note that the original kit can only be leased and costs thousands, plus access to the official software is licensed and costs big bucks, making it too costly for end users.

I'll have another look for that version I referred to in my last post.

[Bob_V]

Marc,

One point I neglected to add was that when I looked at the configurable parameters in the Parking ECU I found that if I identified as C5 then two parameters were shown but with 407 only one was shown. When set as C5 the parameters are Gearbox type and type of Parking Sensors fitted. When set as 407 only the Gearbox parameter is shown. I was therefore only able to change the Gearbox parameter in the Parking ECU when testing. Not knowing how these parameters are written I am unsure whether a single parameter is changed in the ECU or a file is edited by Lexia and a new parameter file is written to the ECU. Could this affect the validity of the testing carried out?

Bob

[GiveMeABreak]

Thanks for the update Bob. I will have a look at the 407 ECU parameters and see what I can see. There are always distinctions between the models as they handle and pass on information differently depending on the electrical architecture of the vehicle and the available options. I'll take a look now to see what I can find....

[GiveMeABreak]

So here's what parameter options should be for the 407 and available from Diagbox 7.02 Bob:

Peugeot 407 Parameters (Parking Assistance ECU)

* Key:
(1) To be Configured According to the Equipment.
(2) Configuration of Another Value Prohibited.

Configuration Parameters	Valued to be Configured	Comments
Presence of Front Sensors	Absent Present	Configure to "Present" if the vehicle has parking sensors at the front of the vehicle (1)
Type of Gearbox	Automatic Manual or piloted	(1)
Sound Emitted by the Top-Of-Column or the Audio System	Active Inactive	Configure to "Active" if the vehicle has the radio (1)
Presence of a Buzzer	Present	(2)
Request to Generate a Putting Into Service Beep When the System Becomes Active	Active Inactive	Must only be configured to "Active" if the vehicle is fitted with a buzzer dedicated to the parking assistance (1)
Type of Activation and Deactivation of The Parking Assistance	Saloon Estate	Configure according to the vehicle’s body type (1)
Position of the Rear Sensors	Saloon Estate	Configure according to the vehicle’s body type (1)

[Bob_V]

Well that's very odd. What parameters are supposed to be available for the C5 in the Parking ECU? The Diagbox only offers me two. Is it possible perhaps that parameters set elsewhere determine which parameters are offered by the Parking ECU? For example there are options in the BSI config to do with parking assistance. Could this have an effect maybe? It's a mystery!!! It might be interesting if someone else with a C5 and Diagbox could try interrogating their Parking ECU as a 407 to see if the parameters offered are as expected. Danger is of course that they then may also end up with a problem with parking sensors. The plot thickens.

Bob

[GiveMeABreak]

The parameter can be set in either the ECU or the BSI generally - it shouldn't matter where, but as a rule it is better to configure the specific ECU data directly, being that the BSI is a critical system and contains data relating to the other vehicle ECUs, so there is less chance of making an error affecting other systems when configuring the ECU directly.

Having said that, and given you particular issues it might be worth checking the options in the BSI - but extreme caution is advised Bob as an incorrect configuration can have a detrimental impact on the car. No harm in checking the parameters - they should be the same - however, they will very likely not be grouped together as in the above table, so you may need to search a bit. But do note any original values and note any option with a '2' is default that must not be changed.

Also, if attempting this, I would ensure you stick with the C5 and not the 407.

[Bob_V]

Thanks Marc, I will give it a go. May be a few days before I can find the time to do this but when I do I will keep you posted.

I'm very grateful for your assistance with this problem and I am determined to get to the bottom of it if at all possible.

Bob.

[Bob_V]

Marc.

Unfortunately I have not had time yet to carry out any further investigation into the Front Parking Sensor problem.

However, in the meantime, having two almost identical cars (I think), is it possible to find out the full build information from the VINs?

For example whether the ECUs fitted to the cars are the same. When interrogating the BSI Configuration there is a list of ECUs, some ECUs are flagged as 'present' and others not. I suspect my Blue car is showing ECUs 'present' when they are in fact absent (for example 'Radio'). These ECUs are shown as not communicating during the 'Global Test' but these same ECUs are shown as 'absent' on the Red car.

The VINs are as follows:-

Red Hatchback VF7**************[VIN obfuscated, can be read by forum staff]
Blue Estate VF7**************[VIN obfuscated, can be read by forum staff]

I have also found a posting on 'Digital-Kaos' forum which describes exactly the fault I have with the front parking sensors on both of my cars. The posting states that the car is a C5 with RT3. I believe both my cars have RT4. Unfortunately the date of this posting is Aug 2010 so it is unlikely the poster is still active.

Did you manage to get anywhere with the search for which version of Diagbox contains PP2000 version 22? You stated that this version should correct the problem but were not sure which version of Diagbox had it.

Finally, do you think that the title of this post would better reflect the issue if it was changed to something like ' Citroen C5 Exclusive (Facelift), Problem with Front Parking Sensors after using Lexia'?

Thanks again for all your time spent on this problem. I hope we can eventually find a solution.

Bob.

[GiveMeABreak]

Hi Bob

Just for info, the terminology used is not always as we expect on French cars, ‘Radio’ is not always meant to mean the Head Unit, but a specific type of Head Unit, like RD3 or RD4 for example, whereas you have the RT4 telematic system in both cars. So having ‘Radio’ as not present can be correct.

I can certainly email you the VIN specs tomorrow via email as requested.

The issue affects the parking assistance ECU to my knowledge, not the Head Unit as such, but the RT3 is almost identical to the RT4 and both made by Magneti Marelli.

I have not as yet tracked down a version of the software as yet and am not optimistic given that the trend is always to upgrade by most, which evidently is not always the right thing to do.

The ultimate option may be to get the dealer to recode the parking assistance ECU ( they can download the ECU configuration directly from their servers) for you. If successful you can duplicate for the other vehicle. Just remember never to go into the parking ECU again with your clone.

I will extract the relevant posts from this thread and create a new thread based on the issue tomorrow Bob.

[Bob_V]

Marc.

I have been thinking that it might save some time to go the dealer route to get one of the ECUs reprogrammed. Before I do that, perhaps It might be cheaper to pick up a second hand Parking ECU and try that first. This would prove that it is definitely the ECU at fault. I'm not sure though if there are any parameters within the Parking ECU that need to be changed or whether the parameters in the BSI determine the operation of the parking sensors and tell the Parking ECU whether or not front sensors are fitted. The part number I have is 'Obstacle Detection Electro Unit 6590 A1' Is this the number I should be looking for or is there a specific part number in a different format?

I did not receive the VIN breakdown as yet but no worry I know how busy you are . Just checking in case I missed it.

Bob.

[GiveMeABreak]

Hi Bob - yes been a little busy, sorry - I will get these to you shortly. The correct part for the C5s with the VINS previously supplied is 6590 A3. 6590 A1 is for the Saloon version and is different.

[Bob_V]

Thanks Marc.

With reference to the part number for the Parking ECU, it was the Saloon version I was thinking about. The Estate is currently SORN so not possible to drive it to the dealers at the moment. Thinking it through though perhaps it would be better to replace the Estate ECU if I can find one. That will leave the Saloon in a known drive-able state. I suppose it all depends on what I can find out there.

'I used to be indecisive but now I'm not so sure'.

I received the VIN information for which I thank you.

Bob.