Page 2 of 2 FirstFirst 12
Results 11 to 19 of 19

Thread: D2 rear windows not working

  1. 9th December 2014, 12:18 PM #11
    Jazzman
    Jazzman is offline Wizard Silver Subscriber
    Join Date
    Jun 2011
    Location
    Victoria - Pakenham
    Posts
    1,268
    Total Downloaded
    0
    Quote Originally Posted by sierrafery View Post
    That block diagram won't help you much, the BCU is not involved in the rear windows operation as much as in front ones, for the rear windows there's relay in the interior fusebox and it's managed by the IDM, ...the BCU has involvment in the stall condition and timer but would not stop them completely IMO

    listen carefully near the interior fusebox while you operate a switch ...do you hear the relay clicking?, the main relay for rear windows is R3 interior fusebox, the first big one(or the only big one if it's not V8) under the two small indicator relays
    The block diagram at least let me know the rear window control was not part of the BCU. And it makes sense, the wires going to the front window switches are small and the wires to the rear window switches are large. Dead give away right there! Not to mention there are not enough relays in the BCU to control the rear windows as well.

    It is a TD5 as thanks for the tips on where to find the relay.
    Reply With Quote Reply With Quote
  2. 9th December 2014, 01:35 PM #12
    sierrafery's Avatar
    sierrafery
    sierrafery is offline YarnMaster Silver Subscriber
    Join Date
    Jul 2014
    Location
    west of Transylvania
    Posts
    3,783
    Total Downloaded
    0
    The gist of it is that you must have feed at the switches on the white/pink wires as long a sthe ignition is on pos ll cos the motors are getting feed through the switch, the relay must be closed while the ignition is on and 44 second after it's off or door opened so forget about that clicking thing i made a mistake about that
    Quote Originally Posted by Electrical library - Windows - Rear; Description
    .......
    Power to the rear window motors is enabled by the Intelligent Driver's Module
    (IDM) which energises the rear window lift relay located in the passenger
    compartment fusebox.
    The rear window enable is operative when the ignition switch is in position II
    and for a period of 44 seconds after the ignition is switched off or after the
    driver's door is opened. The rear window operation is suspended when the
    ignition switch is in the crank position III.
    .....

    ... see the diagram and you'll understand


    the IDM is a chip within the fusebox(attached)
    Attached Images Attached Images
    Discovery Td5 (2000), manual, tuned
    Reply With Quote Reply With Quote
  3. 9th December 2014, 08:01 PM #13
    Jazzman
    Jazzman is offline Wizard Silver Subscriber
    Join Date
    Jun 2011
    Location
    Victoria - Pakenham
    Posts
    1,268
    Total Downloaded
    0
    If the "rear widow lift relay" was missing, that would have a detrimental effect on the operation of the rear windows, would you agree?

    I was mislead in the beginning because the relay was missing. I had no reason to suspect it had been removed therefore I overlooked the most simple of failures.

    Needless to say I replaced the relay, I now have working rear windows
    Reply With Quote Reply With Quote
  4. 9th December 2014, 08:25 PM #14
    sierrafery's Avatar
    sierrafery
    sierrafery is offline YarnMaster Silver Subscriber
    Join Date
    Jul 2014
    Location
    west of Transylvania
    Posts
    3,783
    Total Downloaded
    0
    a wise old man told me once: "always start with the simple things" ... though i know exactly how you feel cos i'm not always following his adwice either
    Discovery Td5 (2000), manual, tuned
    Reply With Quote Reply With Quote
  5. 10th December 2014, 05:27 PM #15
    Roverlord off road spares
    Roverlord off road spares is offline AT REST
    Major part of the heart and soul of AULRO.com
     Vendor

    Subscriber
    Join Date
    Jul 2012
    Location
    Tecoma Vic
    Posts
    9,642
    Total Downloaded
    0
    Quote Originally Posted by Jazzman View Post
    If the "rear widow lift relay" was missing, that would have a detrimental effect on the operation of the rear windows, would you agree?

    I was mislead in the beginning because the relay was missing. I had no reason to suspect it had been removed therefore I overlooked the most simple of failures.

    Needless to say I replaced the relay, I now have working rear windows
    If I recall your dad removed them when you were young to stop you playing with them whilst he was driving.

    Reply With Quote Reply With Quote
  6. 10th December 2014, 06:14 PM #16
    Jazzman
    Jazzman is offline Wizard Silver Subscriber
    Join Date
    Jun 2011
    Location
    Victoria - Pakenham
    Posts
    1,268
    Total Downloaded
    0
    Quote Originally Posted by sierrafery View Post
    a wise old man told me once: "always start with the simple things" ... though i know exactly how you feel cos i'm not always following his adwice either
    This is exactly what I preach to my Techs at work, but sometimes I get sucked in too.
    Reply With Quote Reply With Quote
  7. 10th December 2014, 06:16 PM #17
    Jazzman
    Jazzman is offline Wizard Silver Subscriber
    Join Date
    Jun 2011
    Location
    Victoria - Pakenham
    Posts
    1,268
    Total Downloaded
    0
    Quote Originally Posted by Roverlord off road spares View Post
    If I recall your dad removed them when you were young to stop you playing with them whilst he was driving.
    I told him the relay was missing and he asked me why I removed it?

    Me: HAHA, why would I remove it?
    Dad: Why would I have removed it?

    A pointless conversation was about to be had.
    Reply With Quote Reply With Quote
  8. 11th December 2014, 09:39 PM #18
    Roverlord off road spares
    Roverlord off road spares is offline AT REST
    Major part of the heart and soul of AULRO.com
     Vendor

    Subscriber
    Join Date
    Jul 2012
    Location
    Tecoma Vic
    Posts
    9,642
    Total Downloaded
    0
    Quote Originally Posted by Jazzman View Post
    I told him the relay was missing and he asked me why I removed it?

    Me: HAHA, why would I remove it?
    Dad: Why would I have removed it?

    A pointless conversation was about to be had.
    your dad is getting old and senile, lucky I still have a good memory

    Reply With Quote Reply With Quote
  9. 12th December 2014, 12:44 PM #19
    wardy1's Avatar
    wardy1
    wardy1 is offline ChatterBox Supporter
    Join Date
    Jan 1970
    Location
    Ringwood, Vic
    Posts
    2,127
    Total Downloaded
    0
    Glad I got to the end of this post before replying..... I had exactly the same problem. Tried everything and no joy. Found that the relay had been put into the wrong slot by the previous owner....who obviously never needed to open the rear windows

    Anyway, after a month or 2 of frustration, problem solved in seconds
    D4 SDV6, a blank canvas
    Reply With Quote Reply With Quote
Page 2 of 2 FirstFirst 12
« Discovery 2 RAVE workshop manual is now available for free online viewing | Injector balance's. »

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!