BSI diagnostic required Glasgow lexia/Diagbox/planet

[Pugsake]

Hi, I’m new to the forum. (Glasgow, UK)
I own a 2007 Peugeot Partner Combi 1.6D, which has recently developed a number of electrical issues that are making me suspect a possible BSI fault.
I’m looking to get the vehicle properly scanned using the appropriate Peugeot diagnostic equipment — Lexia/DiagBox/PP2000 (or equivalent) — to try and establish whether the BSI is actually at fault before I start looking at replacement or cloning options.
I’ve checked the member map and it looks like there may be one, possibly two, active members in my area who might be able to help with a diagnostic scan.
I have a full list of the electrical symptoms, including issues with the indicators, hazards, wipers, lights, fuel gauge etc., and I also have the VIN number to hand if that would be useful.
If anyone local has the appropriate diagnostic equipment and would be willing to help, I’d really appreciate it. Obviously happy to cover any reasonable costs for your time.
Thanks in advance.
P

[mickthemaverick]

Hi and

There are indeed some members with Lexia in your area so hopefully one of them will see your post and be able to help. In the meantime the faults you mention sound to me that the battery may be your issue. While waiting for some help check the battery voltage with everything turned off, it should read about 12.7V and again with the headlights and rear window heater on, it should not drop below 12.4, then run the engine and check the voltage across the battery, it should be around 14V with the alternator working properly. If the battery shows lower voltage in the initial test, you can try an overnight recharge to see if it comes up to spec, if not a replacement battery will be needed. On replacing the battery, be it new or your own recharged be sure to follow the BSI reset procedure in the link below:

viewtopic.php?p=601679#p601679

[Pugsake]

Thanks for the reply, and suggestion, however, with these being intermittent faults, and the battery already checked, my understanding is it's likely a BSI failure

Here is a more in depth list of symptoms.

Indicators: work initially when the ignition is switched on, but after a short/variable period, sometimes just a few seconds, the external indicators stop working. The dashboard indicator continues flashing, but changes to rapid flashing.

Hazards: work initially, but after a short/variable period the external lights stop working. The hazard indicators continue showing/flashing on the dashboard.

Sidelights: dashboard illumination works, but the external front/rear sidelights can work briefly then stop working.

Dipped headlights: work normally.

Main beam: works normally.

Windscreen washer: works.

Wipers: completely dead on all settings. I've checked the 30A wiper fuse and it is intact.

Fuel gauge: intermittently reads incorrectly/behaves strangely.

Seatbelt warning: stays illuminated even when the belt is fastened.

Engine: starts and runs normally.

I carried out a BSI reset. This only corrected the fuel gauge temporarily/partly.

My usual garage has suggested taking it to Peugeot for a proper diagnostic.
I phoned Arnold Clark Peugeot in Glasgow and was quoted £168 for the first hour, they also currently have around a 4-week wait.

I'm aware that a cloned BSI is an option if the BSI turns out to be faulty. So, first step is the diagnostic to establish that's definitely the problem.

Thanks
P

[Pugsake]

Update on my 2007 Peugeot Partner 1.6 diesel electrical faults – looking for advice

A forum member very kindly tried scanning the van, and unfortunately we weren't able to get into the BSI.
Peugeot Planet couldn't access anything. We then tried Diagbox (I believe version 7.15), which could communicate with the engine ECU but not the BSI. The BSI wasn't responding to the software.
An Autel reader was also tried, but couldn't read anything. We tried all the Peugeot Partner and Citroën Berlingo variants available on the reader, but had no luck.

The faults have remained the same.

Indicators and hazards aren't working externally.
Wipers are dead.
Fuel gauge is reading incorrectly.
Seatbelt warning light and buzzer remain on even when the belt is buckled.

The member who helped me scan it mentioned there are some knowledgeable people on here who might have an idea what's going on.
Does the fact that we couldn't communicate with the BSI point towards a faulty BSI, or something else. And what should I do now

Any advice would be much appreciated.

Thanks

P