Saxo ECU dead

[z786]

Hi,

got a saxo here, had a crash. Now wont start.

Diagnostics wont log in, different ecu was tried to no avail,
immo light flashes aswell

usual signs for ECU fault.

could it be ignition feeds?

any common faults or fixes any1 here knows???

Thanxx

[johannstamos]

if the ecu is mareli 1ap81 u must delete all the faults first from ecu with original diagnostik beacose if this ecu have up to 3 faults dont start delete and u swe

[z786]

i knw wat u mean but i normally dont get problem with login in2 ecu but i dnt even get response

[Meat-Head]

where do i down load immo off file IAW 1AP.40 and 0 261 204 788 which chip you do :birthday:


Yeah thanks opw could do with the same files myself.

Z seem to think a Shhaxsho has fuel cut off sw lurking behind under hood fuse box?

[obdmaster]

Check live and earths m8 at ecu, you have immo light as the immobiliser cant communicate with ecu. Ive known broken wires on these as loom comes from fusebox on n/s of engine bay then down back of engine to ecu on o/s. Do you have engine management light when you switch ignition on, if not ecu is not powering up.

[nutloose]

check wiring/supply to multi function relay mounted under the ecu. loses power from fusebox

especially if it had a knock on the N/S/F

[busaman]

how much of a crash did you check the inertia switch i had one with the loom cut on the front of the engine(depending on what engine you have) in a crash.

[Meat-Head]

how much of a crash did you check the inertia switch i had one with the loom cut on the front of the engine(depending on what engine you have) in a crash.

cool as you are on line what elses does this file of your s fit (relevent)
oh which chip, and read as thanks?

http://www.digital-kaos.co.uk/forums/f115/another-immo-question-69834/#post358652

[z786]

Yeah thanks opw could do with the same files myself.

Z seem to think a Shhaxsho has fuel cut off sw lurking behind under hood fuse box?

read your eeprom n post dump


Check live and earths m8 at ecu, you have im*o light as the im*obiliser cant communicate with ecu. Ive known broken wires on these as loom comes from fusebox on n/s of engine bay then down back of engine to ecu on o/s. Do you have engine management light when you switch ignition on, if not ecu is not powering up.

ecu is definitly not powering up, but engine MIL does come on


check wiring/supply to multi function relay mounted under the ecu. loses power from fusebox

especially if it had a knock on the N/S/F

do i check for blown fuse or broken wiring?


how much of a crash did you check the inertia switch i had one with the loom cut on the front of the engine(depending on what engine you have) in a crash.

medium front end, head on collision main impact was passenger side,
where do i find the inertia?



thankyou for your input guys

[nutloose]

last couple I've seen were broken wires BB03/BB04
permanent live from main fuse (terminal "30") across car in main loom to the mf relay mounted on the underside of the ecu plate.

[Meat-Head]

Does she do run run, you do run run yet?

[z786]

i found 2 wires, joined em up but still no run run.
i used AD to check pin data and theres no power 2 ecu.
shud i try 2 wire up a direct wire to ecu/ecu relay?

[obdmaster]

i found 2 wires, joined em up but still no run run.
i used AD to check pin data and theres no power 2 ecu.
shud i try 2 wire up a direct wire to ecu/ecu relay?


was broken wires down back of engine m8? why not if your confident you will get it right m8. Dont want you to blow anything up m8:angel:

[Meat-Head]

i found 2 wires, joined em up but still no run run.
i used AD to check pin data and theres no power 2 ecu.
shud i try 2 wire up a direct wire to ecu/ecu relay?

the one of only a few nice things on frech cars is le capictor on le igntion coil, feed this with a positive, close eyes turn key see what happens.



if it run, you love me long time? ?

[z786]

was broken wires down back of engine m8? why not if your confident you will get it right m8. Dont want you to blow anything up m8:angel:

they wer broken by nearside, under wing



the one of only a few nice things on frech cars is le capictor on le igntion coil, feed this with a positive, close eyes turn key see what happens.

wer is ingnition coil on these??

[obdmaster]

they wer broken by nearside, under wing




wer is ingnition coil on these??
DONT LISTEN TO MEATHEAD M8 HES IN ONE OF THEM FUNNY MOODS!!!!!!!!!!!!!!

[Meat-Head]

wer is ingnition coil on these??

as it's not in your face it must oe one of them stpid 'thin' things

if not

Citroen Ignition Coil Saxo 1.1 1.5 1.4 1.6 1.0 CDZ [ on eBay (end time 07-Feb-10 18:09:12 GMT) (http://cgi.ebay.co.uk/-Citroen-Ignition-Coil-Saxo-1.1-1.5-1.4-1.6-1.0-CDZ-%5B-_W0QQitemZ170441915078QQcmdZViewItemQQimsxq2010020 5?IMSfp=TL100205232002r2237)

right in your nose


Citroen Ignition Coil Saxo 1.6 1.0 1.1 1.4 CDZ [ TU9M on eBay (end time 21-Mar-10 05:59:50 GMT) (http://cgi.ebay.co.uk/Citroen-Ignition-Coil-Saxo-1-6-1-0-1-1-1-4-CDZ-TU9M_W0QQitemZ270534061033QQcmdZViewItemQQptZUK_Ca rsParts_Vehicles_CarParts_SM?hash=item3efd162be9)

like this but differant
Interferance Suppressor on eBay (end time 27-Feb-10 18:32:31 GMT) (http://cgi.ebay.co.uk/Interferance-Suppressor_W0QQitemZ130368860031QQcmdZViewItemQQpt ZUK_CarsParts_Vehicles_CarParts_SM?hash=item1e5a96 ef7f)

[z786]

sorry i was thinking of something else
i call them coil packs lol