Citroen c4 fusebox
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Thread: Citroen c4 fusebox

  1. #1
    Fellow Frogger! Ceenine's Avatar
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    Default Citroen c4 fusebox

    Need a BSM (engine bay) for an HDI EGS model.

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  2. #2
    1000+ Posts dmccurtayne's Avatar
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    What for is that the gearbox problem? Got a vin


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  3. #3
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    Default C4 fusebox

    the vin is VF 7LC9HZH74719104

    Yes, I thought before I instal an auto electrician I would give him a heads up by providing him with detailed wiring diagrams. Getting such a person around here to look at anything but a Commodore, Falcon or Magna is an art form in itself.

    The Lexia says "ECU + Permanent supply open circuit" . Well I've traced from the battery through a 10 ohm fuse to the top of the ECU. I got a replacement ECU which gave same reading. So I don't believe it is theECU as my stuff up where nowhere near that link.

    When I did a check using the Lexia 12 months ago I noticed that there was no gearbox fluid pressure reading. I think it is supposed to be between 35 and 50 bar or whatever units pressure is measured in. Checking on the pin (no.5) at the top of the gearbox ECU there does not appear to be 12V present. This is a pretty simple check even for me with a multimeter. So power should be coming through the BSM. However none of the fuse are noted as relating to the gearbox ECU (not that I expected it to), but it seems to me that this is by far and away the most likely source of the problem. Unfortunately C4's ar not exactly thick on the ground around here so a quick swap over to check is not an option.

    It seems like many other solutions I have read, the BSM is the culprit after the BSI and main ECU are solved.

    Car runs otherwise really well but other than using it as a stationery engine for splitting fire wood it is a bit surplus to the fleet.

    I appreciate your interest.
    Don

    PS I am getting 4 tyre valves for the TPRS from the US of A (for XMAS). I think they are used on all Dodges/Chryslers etc. and probably 50,000 other models/makes.



    Quote Originally Posted by dmccurtayne View Post
    What for is that the gearbox problem? Got a vin


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time
    Ken W likes this.
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  4. #4
    1000+ Posts dmccurtayne's Avatar
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    I will do a bit of digging


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  5. #5
    1000+ Posts dmccurtayne's Avatar
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    Default Citroen c4 fusebox

    Whatís the car doing ie not picking 1st etc
    The fault code you have shouldnít be a problem it just means the battery went flat are the brake lights stuck on.


    Garage C5 X7 3008 XTE
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    Fix it right the first time
    Last edited by dmccurtayne; 10th December 2018 at 06:39 AM.

  6. #6
    Fellow Frogger! Ceenine's Avatar
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    Neither drive nor reverse will select. Remember it is an EGS clutch.

    Have a new battery.

    The rear lights are not stuck on, they just blink when I open a door.
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  7. #7
    1000+ Posts dmccurtayne's Avatar
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    Yeah I know if you have a stuck brake switch the clutch wonít release but not selecting sounds like a position issue have you got a lexia have you tried relearning the box you can talk to trans ecu?


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  8. #8
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    David
    Could you please enunciate on your suggestion.
    Don
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    David, I have a lexia. What do you suggest that it can "relearn" the gearbox.
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    1000+ Posts dmccurtayne's Avatar
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    Can you communicate with the gearbox ecu if yes go into replacement parts /programming there is a section in there to relearn the clutch and shift mechanics


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

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    David
    I shall try that. However, I don't recall where it allows "permanent +ve open circuit" rectification. But I'm up for anything.So you don't believe it could be BSM related. For example, the relay that provides power to the hydraulic pump could be stuffed.

    Don
    2014 C5 2.2 HDI Limited Edition Sedan
    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
    Peugeot Mi16 Series 2

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    1000+ Posts dmccurtayne's Avatar
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    Can you talk to the gearbox ecu


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  13. #13
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    yes I can, it tells me all sorts of things such as the hydraulic oil pressure is zero!
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    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
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    1000+ Posts dmccurtayne's Avatar
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    Ok the black 16 way connector on the psf1 engine fuse box should have power at the pins
    1 -8 -10 and 13 if thatís ok the fuse box is ok


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  15. #15
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    Excellent, I shall go out to the shed right now and check. Thanks!
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    2007 C4 1.6 HDI EGS Sedan
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  16. #16
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    Is that 1 to 8 or 1,8,10 and 13
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  17. #17
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    I can't see any pin numbering. Of the 5 large pins, the first one only has power which does,t seem to go anywhere in the plug and the 2 large white wires and the small brown wire coming out of the plug which are the second and third connectors do not have power. Of the small pins, only 2 and 4 on the outside row have power. the fifth pin there has 5 volts. All this has been measured with the plug out and the ignition turned on (no motor running).
    Don
    2014 C5 2.2 HDI Limited Edition Sedan
    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
    Peugeot Mi16 Series 2

  18. #18
    1000+ Posts dmccurtayne's Avatar
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    That would be just pins 1 8 10 13 and that is the rectangular black connector that has a slide to release it


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  19. #19
    1000+ Posts dmccurtayne's Avatar
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    IMG_1544480628.289497.jpg
    Should look like this if you look closely there will be numbers on the wire side of the connector


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  20. #20
    Fellow Frogger! Ceenine's Avatar
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    David, There is a picture on eBay "FUSE BOX SUITS CITROEN C4 2005-2011 5 HATCH MANUAL 1.6 DIESEL KMJ" It is one of the first items which comes up. I tried photograhing the fuse box in my engine bay but it exhausted my IT skills. I couldn't find anything like your image in and around the fuse box.
    Don


    2014 C5 2.2 HDI Limited Edition Sedan
    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
    Peugeot Mi16 Series 2

  21. #21
    1000+ Posts dmccurtayne's Avatar
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    Sorry I had it in my brain that yours was a b7 hope this helps


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  22. #22
    1000+ Posts dmccurtayne's Avatar
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    IMG_1544518642.987781.jpg


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  23. #23
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    David, that is the exact wiring diagram for my car. Can you help by directing me to the 12v connector in the BSM.It seems to me to be the BF 07A wire in the fuse box dagram which goes fromMF (I assume Maxi fuse 7)to pin 5 at the top of the gearbox ECU (1660). That I believe should be the hydraulic fluid pump 12V wire. Trouble is, MF7 is a sparein my car. Thoughts?
    2014 C5 2.2 HDI Limited Edition Sedan
    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
    Peugeot Mi16 Series 2

  24. #24
    1000+ Posts dmccurtayne's Avatar
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    Pm me your vin and email itís to hard to read on hear the pump seems to power directly from the ecu I do have a complete pump actuator setup somewhere


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 505 GR xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  25. #25
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    the vin is VF 7LC9HZH74719104
    2014 C5 2.2 HDI Limited Edition Sedan
    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
    Peugeot Mi16 Series 2

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