peugeot 206 non starter

[z786]

hi lads got another 1 here

peugeot 206 2002 petrol 1.4 sagem 2000 ecu

iv run a diag using pp2000 and i cannot connect 2 ecu

car is in eco mode

customer said it sometimes starts

iv tried spare key, same problem

in bsi, there is a fault code sayin "no communication with engine ecu"

i did get this screenshot, can any1 help me wat parts its askin 2 be checked?

i knw the fault is ecu not powering up, jus wondering if there are any common faults i should check, all help is appreciated

thanks

[obdmaster]

hi lads got another 1 here

peugeot 206 2002 petrol 1.4 sagem 2000 ecu

iv run a diag using pp2000 and i cannot connect 2 ecu

car is in eco mode

customer said it sometimes starts

iv tried spare key, same problem

in bsi, there is a fault code sayin "no communication with engine ecu"

i did get this screenshot, can any1 help me wat parts its askin 2 be checked?

i knw the fault is ecu not powering up, jus wondering if there are any common faults i should check, all help is appreciated

thanks

Check out the multi-function relay underneath ecu bracket m8, dont think there will be any quick fix you need your multimeter autodata and get testing m8.:smokin:

[z786]

i did look for a relay there but cudnt find1, maybe need 2 unbolt ecu?

also just remembered, customer said, when the does evtually start, the revs bounce all the way to 3500rpm

cud it be a dead ecu?

[Meat-Head]

M-H-M have had no hang on, 307, or was it a 206, anyway in the under hood fuse box was the engine control relay, double pole, 1/2 went to power the ecu, the other to run the errectors egr, etc, SWFFV etc etc.

on the coil, if there is a capacitor feed it with a B+ see what damage it causes

[Ashraf6119]

Check out the multi-function relay underneath ecu bracket m8, dont think there will be any quick fix you need your multimeter autodata and get testing m8.:smokin:


Hi Z786,

I do agree with this post have look at this relay first as this relay can cause not have communication with Engine ECU.


Ash

[cars]

The 206 year 2002 if not mistaken has not the double relay located under the engine ECU but its function is integrated in the fuse box near the battery called BM34, if you send me VIN number through the email I can find the wiring diagram, so you can check the ECU power supply.

[z786]

i dont hav the vin to hand, but should i look for a relay or fuse in fuse box?

[cars]

I enclose the wiring diagrams of a 206, 2002, but no VIN I'm not sure they are correct.

[z786]

yes that diagram looks the same as the car i have here
in autodata i checked the pin data and 3 pins do not hav 12v comming to them, only 1 does.

that shows me the relay isnt working

do i jus change the whole fuse box???

[Meat-Head]

well unplug the ecu feed one of the dead ones with battery live then probe the other two. if back feededs joint to the working one and deny all knowage

[jnoroeste]

Hi M8, I supose that is a full can model, then this conects bsi with abs and ecu units, they are serial conected,(no paralell connection) if abs dont works then no comunications between bsi and ecu, no start autorized and go to eco mode.
Plesae check abs unit an can network.
Good luck.

[z786]

do i scan the abs unit to see error codes?
i thort the can network was introduced in 2004?

[cars]

You try to put the grounding pin 13 of connector 16v NR (plug connected to BM34) and the internal relay trips if the ECU should switch.
I personally would have happened two Peugeot 206 with the power control relay (pin 13) stopped in the wiring.

I think the problem is not ABS because CAN line is bypassed in connector of ABS and does not in ABS ECU, then you can make a diagnosis if ABS has no problems.

[z786]

should i ground pin 13 permanantly or just once?
the ones wer you had a problem, wer did u find the broken wire?

[cars]

You put pin 13 to ground permanently, you should hear relays click and you have out pin 14 16VGR 12V (the connectors must be connected), from 13-pin 16v you need 12V NR che alimenta ECU.

To check if the wire is broken is only test of continuity with multimeter connectors loose (it happened to me in the middle of wiring).

[z786]

iv jus checked
when i ground pin 13 i hear the relay click
but still no start, no comms with ecu

i even tried to scan abs, no comms either

i cant locate the fuse box where the abs fuses are

really confused now

[Meat-Head]

That would suggest

1) loss of ignition feed to abs AND engine ecu - not powering up
2) abs dead AND engine ecu dead


Favour 2 faults if you are taking bets

DO THIS AT YOUR OWN RISK - if it does

There is a rumor going around that says on a 206 the abs plug fits 2 ways, wrong way it leaves the ignition powered on (F)

[cars]

iv jus checked
when i ground pin 13 i hear the relay click
but still no start, no comms with ecu

i even tried to scan abs, no comms either

i cant locate the fuse box where the abs fuses are

really confused now


If your problem is the lack of power supply to ECU on pin L4, we needed to understand whether BM34 relay double at work, with the test pin 13 ground exclude malfunctioning BM34.
Now when you add to ground pin 13 you should find out Pin14 16VGR tension 12V .
You control that 12V controls that you get to the ECU on pinL4.
If you miss continuity check cable.
If 12V is ok because we need to understand double relay snaps.

[foxtec800]

may be sending you totally up the wrong tree, but we had a 206 similar problem ,multifunction relay not powering up abs or engine ecu, turned out to be a fuse missing from the facia fusebox,,took us ages to find as according to the customer he just came out one morning and it didn`t start, i think it was fuse 4,,

[z786]

If your problem is the lack of power supply to ECU on pin L4, we needed to understand whether BM34 relay double at work, with the test pin 13 ground exclude malfunctioning BM34.
Now when you add to ground pin 13 you should find out Pin14 16VGR tension 12V .
You control that 12V controls that you get to the ECU on pinL4.
If you miss continuity check cable.
If 12V is ok because we need to understand double relay snaps.

ok i have checked pin 14 on 16vgr and it does have 12v when ignition is switched on

so next step is to do continuity check on pin L4 in ecu?

which plug is it in on the ECU as there are 3 plugs

in autodata, middle plug A pin L4 is an earth, is that supposed to be live??

thanks mate

[nutloose]

I went out to an accident damaged non starter/runner 206 recently and the abs unit was disconnected due to damage.
This caused the ecu to have no comms with the bsi.
Plugged in the used ABS replacement and bob's yer auntie it started and ran.
try doing a CAN check.

[z786]

how do i do a CAN check?
thanx

[cars]

how do i do a CAN check?
thanx

The continuity test on ECU PIN L4 black 48pin plug.
For check CAN line
If you have problems with CAN line, you have faults stored in BSI and ABS ECU (lack of communication).
If you can make the diagnosis of ABS can not have CAN line problems.
Only way to check if electrical signal CAN line is OK, Oscilloscope (double twister wire) PIN A1 A2 48pin plug black.

[cars]

EXAMPLE SIGNAL CAN LINE.

[z786]

where is the abs plug located? thanks
there is no communication with abs via pp2000 so i reckon it might hav somehing 2 do with it

[cars]

where is the abs plug located? thanks
there is no communication with abs via pp2000 so i reckon it might hav somehing 2 do with it


It may happen that one of the ECUs connected at CAN line create problems, in our case the only test we can do is exclude the ABS, pulling on the connector and bypass pins (see attached)

To exclude ABS you can disconnect the ABS connector and make bypasspass between pins 21 to 19 and 23 to 25. ABS is thus excluded, but the CAN line is restored.

If this test with engine ECU does the ABS ECU is the problem, otherwise we think of something else.

[joubliss]

actually 100% there is no light Cheak in the dash, just try with another ecu if the light comes so u can be sure that the ecu is did. if not verify the wires.

[mage]

Guys you are sure this car has Canbus for diagnostics?
206 until 2005 I do diagnostics on K line.
I always take a quick look inside diag connector(DLC)
Pin7 and 15 are present? (ECU)
And pin 12 present? (ABS)
Then Car has CAN and VAN inside (but not for diagnostics)

[z786]

thats why im suspecting CAN, because the engile check lihgt MIL does come on!

[z786]

Guys you are sure this car has Canbus for diagnostics?
206 until 2005 I do diagnostics on K line.
I always take a quick look inside diag connector(DLC)
Pin7 and 15 are present? (ECU)
And pin 12 present? (ABS)
Then Car has CAN and VAN inside (but not for diagnostics)

yes but if the can / van have gone down, then ecu wont communicate

[dafdiagnos]

you need to perform usual can system checks m8, can H to earth ign on 2.5v, can L to earth ign on 2.5v, resistance check can H to can L 60 ohms if ok, 120 ohms if circuit broken m8

[z786]

i went to car 2day, there isnt any ABS on the car lol

continuity from fusebox to ecu pin l4 was fine

engine mil works so ecu is working

jus no CAN left

thanks dafdiagnos, will check tomorow, if i can find the can line lol

also is ANY1 here willing to take the job on?
if so please PM me

forgot to mention, the owner got the car started a few days ago, but the revs wer bouncing all over the place and it cut out

[Meat-Head]

DUMB QUESTION TIME:

Does this have an earth point to the engine ecu that's on the engine that's snapped.

Why do you not immo -off another ecu and try it dude.

[agabna]

hello
first thing you got when you use the pps is u got the vin from the bsi and your vin is
VF32AKFWF42703198
from the image you post it
so the other member need the vin to give u full diagram can help u

[z786]

iv checked the earth on gearbox and it seems fine, was thinking to immo off another ecu but not sure thats the problem

[agabna]

hello
befor you do immo off their is a sound you hear it when the key is near the igntion it like( tit tit ) if you hear it that means the bsi and the key is matched but if you cant hear that sound the car will not start even your ecu is working and you have to check the configration for the bsi with the ecu (can our multibexer)

[cars]

Thanks agabna now with VIN I can give you the wiring right and in fact there is not ABS and power supply of the ECU are different (see Annex).
Now I recommend checking n8 fused and 16 if OK to do the same tests:
_Make ground pin 13 and control pin 8 out 12V( connector black 16pin).
_Continuity test-pin13 (16pinblack) and ECU pin A4(32pin black).
_You check point ground above the gear (MM01).

[nutloose]

if the bsi reports no comms with ecu when the ecu is powered, I have seen this symptom on a 206. After replacing a defective (wipers and indicators) bsi and programming the keys the new bsi would not allow the ecu to communicate or be re-matched. Refitted the original faulty bsi car ran like a clock, the ecu communicated fine, the wipers and indicators didn,t work though. My opinion of this is that the ecu would not learn the new bsi and the missmatch prevented comms.

[Meat-Head]

Refitted the original faulty bsi car ran like a clock, the ecu communicated fine, the wipers and indicators didn,t work though. My opinion of this is that the ecu would not learn the new bsi and the missmatch prevented comms.

*THINK* That is because they are avalible in 7 differant exciting flavours

Every flavour in stock, except the one you want.

Look the same, smell the same, but differant taste.

The one you need is the one that leaves an after taste in your mouth
as it's dearer than the other 6

HTH

[cars]

Dear colleague we are orphans of the automotive section then satisfied us with some good news, you have solved the problem of 206?

[magnacin]

From my experience you have a bad ECU. try with another set with key and everything. if you don have one with key, get a used one and change he file on the 95080 with one with immo off like this...

[z786]

not yet mate, iv had 2 much work on at the moment
(all loss, none profit lol)
will go and try another ecu as soon as i can

thanks

[BALI7605]

I have a 1.1 2001 206 here with same no communication to the engine ECU, pp2000 can connect every ECU on the car a part of the injection.
I've tried to connect a second hand ECU but no comms to ecu.There are some power goes to the ECU coz i had it connected open and tested a few pins and some shown 12+.
I will go back tomorrow to spend some more time with car and see those rellays but any clue would be helpfull.

bali

[nutloose]

you will not get comms with an unmatched ecu the BSI will not allow it.

[Meat-Head]

just remembered.

M-H-M had one in AGES ago and same shit differeant day.

Broken wire 'above the bell housing'

no ign sense to ecu lol

[z786]

some1 else came and managed to start that car, i hav no idea how

but he could get the car to hold idle

customer wants me to go back and finish the job (set it on fire) lol

no but really what can it be? if you hold revs the car stays started, when u let go it stalls?????

[Meat-Head]

OH.

Guess it's a flyby wire throttle. can you put a self tapping screw into the pedal to jack up the revs.

or clean the throttle body with thinners

[dof]

Hello ,
I have same problem, by set pin 13 of ECU ton ground, I start car. By the way, I ask to other friend and they said to me that is the "comodo". Comodo are the command for warning left and right, light, horn and other command. Someone tell me there is a contact into it and it is the begining of all the problem. Could you verify all that ? Some people (brokers) say me that again but there are 2 model: one haven't mux and the other have it.

That all I can do and perhap it's the solution ???

Dof

[zimbali7840]

From my experience you have a bad ECU. try with another set with key and everything. if you don have one with key, get a used one and change he file on the 95080 with one with immo off like this...

If anyone is gonna try this solution, I would like to add an important step:

DISCONNECT THE INSTRUMENT. Otherwise instrument and BSI will be synched and both will be programmed with the maximum of the two. So If you put back that BSI on its original car, you may increase the mileage on that car or the otehr way round.

[cars]

some1 else came and managed to start that car, i hav no idea how

but he could get the car to hold idle

customer wants me to go back and finish the job (set it on fire) lol

no but really what can it be? if you hold revs the car stays started, when u let go it stalls?????


You take 3 gallons of gasoline, put it on the seats and floor mats and .... throw a match and if the owner scolds tell him that it was for the good of all.

The minimum is maintained only minimal stepper motor, or it is broken (if it is very hot with turn on injection has a problem) and I is not isolated capiata coil motor disturb the signal, but it was sporadic .

[z786]

You take 3 gallons of gasoline, put it on the seats and floor mats and .... throw a match and if the owner scolds tell him that it was for the good of all.
.


now your talking my language

now the funny thing is...............

the car doesnt start any more lol

whoever came to start car before, he had lucky day coz he could comunicate with ecu

car was started, drove aroundblock twice and went dead

now i noticed, the car doesn't make a beep noise when key is left in ignition

so i scanned bsi, check the attachment..............

doesnt make sense at all

faulty ecu????????

[cars]

You can make a diagnosis Com 2000 (dimmer switch), because it is not working and not reading the key code, or if work could be com2000 satellite transponder.
Wiring diagram that is attached I have not found link transponder antenna connector should be a 6pin plug behind Com2000 brown.
I personally have happened antennas went bad at times and sometimes not.

[z786]

but why would the car (when started) run badly

can com2000 cause ecu not to respond?

are you sure its not faulty ecu?

[cars]

A nice puzzle!!
Certainly those with BSI data engine will not start if the key is not recognized as the engine ECU is locked before I would try to resolve this problem, when you start the engine always tries to understand why bad turn.

[BALI7605]

Hi to all, sorry no to come back on this for a while, but i was on my honeymoon, but just one day before i went i got this 206 running by short-cutting on the BM34 16V pin14 to + it.It made me able to communicate with the engine ECU and got the engine to start too BUT as soon as the engine warms up it has no idle and it's running rich and stinks petrol, coz i think BM34 supposed to power a lot of engine auxiliaries but i think BM34 is faulty in the first place hence there is no power in the engine ECU and the bridge i mad is just powering the engine ECU but not the rest. Hopefully today or within 2days i get a 2nd hand BM34 fitted and let you know the result.

bali

[otpornik79]

Hi to all!I had a similar problem with 206,cannot connect 2 ecu,when I disconnect the ignition coil I had a connection with ecu.Connect the ignition coil car was started run badly some time then dead.After several attempts at going on the same.Was a bad ECU.
Sorry for bad English.I hope that might help!

[reisxxx]

Tradu??o do portugu?s para ingl?s



friend good night

Check grounding motor body, and check the fuse and shunt fisivel bsi,,
ask pro customer is not the crash occurred after installing radio
(Sound

[reisxxx]

Tradu??o do portugu?s para ingl?s



friend good night

the wire that usually cut electricians to install radio is blue, he feeds with 2000

[BALI7605]

Hello Again,

I've got a 2nd hand BM34 put in but car didn't start, if i changed to the old BM34 and earth pin13 engine runs but no idle.
I'm getting lost on this. I have pp2000 but i have no access to the wiring diagram, can someone tell me how could i get access to them or is it pug world only?

bali

[Albanais]

OH.

Guess it's a flyby wire throttle. can you put a self tapping screw into the pedal to jack up the revs.

or clean the throttle body with thinners

Hi mate
In lexia you have a menu where tells you to make adaption of the throttle, the gay in question didn't try to do it. Just for information, a week before i fixed a c3 with motorized throttle, the customer was happy, I'm happy more then the customer becaus it was a big headache to fix it.
Cheers