Citroen C3 HDI Non Start No Communication ECU - Page 2
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  1. #16
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    Hi all.

    An update...

    Joined the CAN lines of the ABS In/Out. But apart from no communication with the ABS Module everything seems to be the same. I have also given the BSI a tap!

    So before I order a new BSI I will go with what Dunker and rachmach suggest and make sure power is in the correct locations.

    mcabd and busaman - were you refering to the BSI in glovebox or BM34 under the hood?

    Thanks

  2. #17
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    bsi is in the glovebox
    7.31sec@203.3mph

  3. #18
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    have you checked the wiring to ecu from the bm34 they also give problems the double engine control relay is in there.
    7.31sec@203.3mph

  4. #19
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    Yes I'm just working through the wiring diagram, making sure I have continuity on all wires. Looks like the BSI is the culprit though...

    Will keep you posted, thanks

  5. #20
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    have you got the rp no and vin does it have esp il look up the propper wiring diagram for you.
    7.31sec@203.3mph

  6. #21
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    N/S sticker reads:
    11194CA
    10540
    EZWC
    1184540

    VIN: VF7FC8HZC28955568

    Thanks

  7. #22
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    here is the diagram for your car.
    7.31sec@203.3mph

  8. #23
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    would help if i attached it
    Attached Images Attached Images
    7.31sec@203.3mph

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    ABS is a part of serial CAN bus system. It's not just link a twisted pair. Ther are end line resistors and it has to go through ABS system. Check your resitance between CAN lines on abs plug is it 60 or 120 ohm ?

  10. #25
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    trust me you can link the CAN wires on the abs to eliminate it as a problem ive done it several times.

    a fault in the abs can cause all the modules to loose comms, ive seen it on c3 c4 c5 models.
    7.31sec@203.3mph

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    Quote Originally Posted by busaman View Post
    a fault in the abs can cause all the modules to loose comms, ive seen it on c3 c4 c5 models.

    OFF TOPIC:

    vectra C, Zafira B, Saab (?

    Was Banned For Being Certifiably Insane and Stupid

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    Quote Originally Posted by Meat-Head View Post
    OFF TOPIC:

    vectra C, Zafira B, Saab (?
    yes meaty can-bus can do strange things one module can show lots of errors on others. but pug /citroen with van-can can have one of the wires broken but still work with reduced perfomance but you wouldnt know it. until you ran a test on the can-bus.
    7.31sec@203.3mph

  13. #28
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    Thanks, I'll jump back on it today and report!

  14. #29
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    I pushed this to the back of the garage, but back on it now. Wiring appears to be correct. So I've ordered a BSI. Hopefully that'll do the trick. Will report when it arrives. Thanks

  15. #30
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    Just stripping the old unit out, its a 96 592 854 80 same as in Peugeot 207. Can these be code swapped?

 

 
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