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Using lexia 3 diagnostic interface
#1
Hi just brought a lexia 3 diagnostic   interface watched a few videos how do find parking assist fault  on it thanks
This is one I brought
https://www.ebay.co.uk/itm/325732776904?...media=COPY
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#2
I think you start by finding any faults, then go through them. The vids should show how to do that, and there are many many threads about Diagbox on here as well.
53 1.4i MS MPV RIP
53 1.6 MS Desire RIP
08 C4GP 1.9 VTR+
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#3
What year is the vehicle?

Anyway if it's just fault codes you want, do global scan, it tests everything. Then click the device showing a fault code and it tells you what's wrong.
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#4
Got it to work these are the faults I got


Attached Files Thumbnail(s)
   
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#5
The F5FF I've seen before, it's a weird one but basically means the BSI was not shut down properly, as in battery disconnected or wemt dead flat, without the BSI being allowed to shut down to sleep mode before it happened. If the battery dies in use, it can't be helped so the BSI will flag this code anyway.

A proper BSI reset would clear it.

The second code is loss of comms with the rear park assist ECU which is stored behind the panels in the boot on the LHS. Could be a blown fuse, or a wire break for example. If the ECU is offline for any reason, the code is the same.
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#6
Thanks I try resetting it tomorrow  the parking sensors fault when I put in reverse the fault shows up on dash if I take it out of reverse and put it back in reverse no-fault  all the sensors work can't see whybits coming up
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#7
I posted the BSI reset procedure in the tutorials & how-to section, have a look for it there at the top, in the pink section. I put lots of useful stuff there.

The fuse is F14 on the BSI for the rear park assist. I've posted the fuse diagram below.

The search box is top right on the site, shown on every page.

   
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2017 B9 1.6 BlueHDi Van
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#8
Thank you but a think fuse will be ok as hands free works  fine
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#9
Ok well it's a case of checking wiring, or maybe the parking ECU has croaked. Or the CANBUS wires are damaged to that ECU (white and red twisted pair)

Has it never worked, or did you connect anything like a camera to the rear lights? Or a towbar?
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2017 B9 1.6 BlueHDi Van
2012 B9 1.6 HDi Van
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#10
(11-09-2023, 08:32 PM)Zion Wrote:  Ok well it's a case of checking wiring, or maybe the parking ECU has croaked. Or the CANBUS wires are damaged to that ECU (white and red twisted pair)

Has it never worked, or did you connect anything like a camera to the rear lights? Or a towbar?

No only had van for 2 months havant done anything to it will undo all wires and clips and check them thanks I did undo the battery the other day just left itbof for 15 min then reconnected it didn't do it like you should have I do it 2morr thanks for your help
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