I have the same issue, electronic imobiliser fault Peugeot 508 2.0 163 allure manual start stop

 

The steering lock and ignition positive relay were the same as the faults I had.

After much testing, I replaced the under bonnet fuse/relay box (same model in a Citroen DS5) (You may need to configure it to your car using diagbox)

And the steering lock (you will need your 4 character security code, available from Peugeot main dealer or there's someone on here who can get them for a small fee)

I tried a new steering lock before changing the fuse/relay box, but that one broke too... As I was still looking for the actual cause, I ordered a steering lock emulator from Portugal. I had to de-solder the connector from the PCB of the steering lock and solder it onto the emulator. You could cut the plug off on the car side and solder the wires directly.

 

Hi I don’t know what fuse box/ relay are you talking about sorry

 

PSF1 on this diagram, it's the fuse box under the bonnet (not the fuses directly on top of the battery)

 

That would be why I can’t start the car and have the problem with electronic engine imobiliser?

 

Hi, coming with an update I still have an electronic engine imobiliser fault and still can’t start the car any help please
I will upload the codes error down below
The following systems is abnormal:

Engine ECU 1 problem exist

1.P0215 Principal Relay Intermittent

Built-in Systems Interface(Bsi) 15 problems exist

1.U1F00 Fault Event Not Stored In The Faults Log Permanent

Intermittent

2.B180E Fault In Authenticating The Hands-free Remote Control Not Present In The Reader

Intermittent

3.B180F Fault In Authenticating The Mechanical/Electronic Key Or The Hands-free Remote Control Present In The Reader

4.B1278 Fuel Sender Fault Intermittent

5.U1F30 Fault No Communication With The Hands Free Kit ECU Intermittent

Intermittent

6.U1F28 Absence Of Communication With The Steering Wheel Switch Module

Intermittent7.U1F35 Absence Of Communication With The Electronic Key Reader8.U1F44 Absence Of Communication With The Alarm ECU 9.U1F43 Absence Of Communication With The Air Bags And Pre-

tensioners Unit

10.U1F42 No Communication With Air Conditioning ECU 11.U1F3E No Communication With Telematic ECU 12.U1F25 Absence Of Communication With The Instrument Panel 13.U1F27 Absence Of Communication With The Multifunction

Display

14.U1F38 Absence Of Communication With The Instrument Panel

Matrix Display

15.U1F36 Absence Of Communication With The Stand-alone

Telematic Unit Or The Service Module

Intermittent

Intermittent

Intermittent

Permanent

Intermittent

Intermittent

Intermittent

Intermittent

Engine Wiring Housing 1 problem exist

1.U1F00 Absence Of Recording In The Faults Log Present

Hands Free Kit 1 problem exist

1.B1734 Accesses Locking Sensor Fault (Front Left-hand Door) Temporary

Rain/ Brightness Sensor 1 problem exist

1.U1802 Vehicle Speed Data Fault Intermittent

Services Module 1 problem exist

1.0D80 GSM Module Internal Fault

Switch Module Under The Steering Wheel (Top Of Column) 1 problem exist

1.B1836 Transponder Aerial Fault Temporary

 

Some of those faults are the same as what I had. However, some are not.

I would try live data on your diagnostic tool on the immobiliser/central locking module and seeing if the keys are being detected. It should show each sensor.

Will the car start with your key in the key reader? Do you have 2 keys? Have you tried both?

 

Hi I’ve tried both I can’t start the car with both keys funny things is the car sees the keys when in key reader or not in the key reader but still won’t start, can’t even put the ignition the second I press start I get ELECTRONIC ENGINE IMOBILISER and nothing happens, it is so frustrating

 

Do you still have the steering lock fault? I couldn't see it on your latest list. And the ignition positive relay fault?

The symptoms seem the same as what I had. Couldn't get ignition or start, keys were being recognised by the reader but car wouldn't start.

You may get more fresh eyes and attention if you start a new thread, maybe reference this one as it's similar symptoms and mine was resolved

 

I don’t have it no more had a subwoofer on the car took it off and cleared some errors like airbag and others though, thank you what could it be what you recomend first step? Thank you

 

I'd start by getting a second hand fuse box with the same part number (ideally from the same variant of car if you don't have the means to configure it) and swap that. Clear errors and see if they are the same

Pardon our interruption...

That is what it looks like. Most places will allow you to return for a refund if it's no good, but check first.

It also could be a number of other things; BSI, steering lock (I wouldn't rule that out just yet), ADML unit (the thing that reads the keys).

This is why I suggested starting a new thread to get more detailed and specific advice. I will help out as much as I can on your thread, but I'm no expert, I came here for help myself and learned bits along the way.

You cannot use second hand steering locks or ADML units, once they are programmed to the car, they are useless in another car.


Steering lock emulator: Pardon our interruption...

No soldering required on that one, nice easy test. That and a fuse box fixed my issue.

 

Thank you the mirrors are folding out it locks and unlocks keyless entry works also I just don’t know where to start Peugeot quoted me 120£ per hour

 

The starting point depends on how much experience you have with fault finding electrical circuits. The options are:
1. You could simply follow @Mikejt90 advice and buy a used engine fuse box and hope it solves your problem.
2. You could do some diagnostic tests with a multimeter
3. Hand the problem over to a Peugeot dealer.