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Thread: Electronic park brake locked on - local scan tool Help, if possible..

  1. #1
    Join Date
    Apr 2012
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    Coolum
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    163

    Electronic park brake locked on - local scan tool Help, if possible..

    To explain.
    I attached a sharkcat with ALKO brakes last night and prepared for an early depart this morning.

    The car was parked on a hill / angle so the park brake was applied. I checked the boat lights and noticed there was a dud connection and reversed the car to a more level ground and it seemed OK and then disconnected the trailer lights and the power for the electric hydraulic discs on the trailer and then reconnected.

    everything then seemed to be working fine but when driving off the Electronic park brake would not release.

    I have checked fuses under bonnet and in glove box 40 41 and all are fine.

    I have tried to manually release the handbrake using the cable but it seems to pull out OK but still does not release the hand brake. (boat now disconnected. Can't move forward or reverse tried toggling low high in neutral and then fwd back whilst pulling cable - how much pressure is required to release the cable - I don't want to break the damn thing which would require a costly replacement proceedure.

    Any thoughts or perhaps a scan tool local (Clear fault codes /reset) would be appreciated.

    Steve
    D3 2005 4.4 V8 HSE java Black.Alpine Roof,Alpaca Leather 7seat,LRSat Nav,E diff,Bi Xenon.Hi-Ice et.voice control.Bluetooth Phone.Kaymar rearbar.Roofrails and Racks.18rims.Traxide Dual Battery towpoint Anderson plug. Xenon 4300k Hbeam.10wled450lightbar.

  2. #2
    Join Date
    Jan 1970
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    It reportedly can require brute force to release it. Ensure that you can't be hit with the tool that you have through the loop when it releases.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  3. #3
    Join Date
    Aug 2016
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    Melbourne
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    450
    I used a screw driver slotted through loop
    2016.5 TDV6 Graphite D4,Corris Grey,APT sliders,Goe air comp plate,UHF & HF radio,Airflow snorkel,Discrete Winch,Compo rims with 265/65/18 KO, LLAMs,Traxide dual battery with winch set up,EAS emergency kit,Mitch Hitch EGR blank & delete,ECU remap

  4. #4
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    Adelaide - Torrens Park
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    Quote Originally Posted by coolum View Post
    To explain.

    - how much pressure is required to release the cable - I don't want to break the damn thing which would require a costly replacement proceedure.

    Steve
    Force required is plenty. It will release with quite a bang, you will know when it happens.
    (76 Two Door - Unmolested)
    (88 Hiline - Now with Limited Slip rear diff)
    (07 Vogue TDV8 )

  5. #5
    Join Date
    Mar 2020
    Location
    Darwin, NT
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    10
    Iíve been in this situation. The first time it took far more force than I was comfortable with. I used a carabiner hooked into the loop and I would guess at about 30kg of up force required.

  6. #6
    Join Date
    Apr 2012
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    Coolum
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    Thanks a Million all .

    I have been at work (rather have been fishing of course) but thanks for all the great input and hints .. I will get out the beast and give it some attention shortly and hopefully get moving.

    The next appointment at the LR specialists is 27th May.. (for other suspension work) This is not to say that LR's breakdown more often than other cars (any Joe can fix a tojo) its just that British offroad know their stuff and everyone wants to use them to fix the vehicles.. they really are great for service and repairs of all LR's.

    Thanks again everyone .. I hope the cable doesn't break before the work is done.
    D3 2005 4.4 V8 HSE java Black.Alpine Roof,Alpaca Leather 7seat,LRSat Nav,E diff,Bi Xenon.Hi-Ice et.voice control.Bluetooth Phone.Kaymar rearbar.Roofrails and Racks.18rims.Traxide Dual Battery towpoint Anderson plug. Xenon 4300k Hbeam.10wled450lightbar.

  7. #7
    Join Date
    Feb 2007
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    Kalamunda: Perth
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    3,530
    The hand brake jams because the brake shoes are not adjusted regularly. Pretty sure you dealer will tell you you need a new actuator unit at a cost of ~$2000+.

    If your handy you can remove the actuator unit, unjam it (it's not the brake shoes that actually jam up), reconnect all cabling (that pulling on that wire loop disconnects), adjust your brake shoes so it does happen again and drive on.

    There are threads about it all on here somewhere.
    2011 D4 3.0 SDV6
    1999 D2 V8, in heaven
    1984 RRC, in hell

  8. #8
    Join Date
    Jun 2010
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    Central Coast NSW
    Posts
    1,859
    Google bodsys brake bible. It shows you how to adjust it.
    '08 D3 4.0 V6 :) - 265/65/R17 on X5 rims.
    FINN - '72 88" S3 - 2.286 petrol - yet to go on it's first adventure
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  9. #9
    Join Date
    Apr 2007
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    Newcastle NSW
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    286
    Quote Originally Posted by Ferret View Post
    The hand brake jams because the brake shoes are not adjusted regularly. Pretty sure you dealer will tell you you need a new actuator unit at a cost of ~$2000+.

    If your handy you can remove the actuator unit, unjam it (it's not the brake shoes that actually jam up), reconnect all cabling (that pulling on that wire loop disconnects), adjust your brake shoes so it does happen again and drive on.

    There are threads about it all on here somewhere.
    It seems the common response when you need to release the handbrake manual release is that you need a completely new brake actuator at $2k plus. I had to pull the release the other day when ours locked on after putting up with the occasional screech noise. Watching a youtube video I now understand the mechanism by which it unlatches and the only way to relatch it is to remove the unit, open it up and relatch it and install the unit back in (with new, frshly adjusted shoes). As long as there are no plastic gear fragments left floating in the actuator unit I assume I'd be good to go? Worse case scenario I suppose is I go through all that pain and find the actuator is stuffed and I need a new one .
    Just arrived: 2012 D4 3.0 HSE, the journey begins again ;-).
    Gone: 98 Disco 300tdi Auto, and some extras

  10. #10
    Join Date
    Apr 2020
    Location
    Lara
    Posts
    21
    Quote Originally Posted by goldey View Post
    It seems the common response when you need to release the handbrake manual release is that you need a completely new brake actuator at $2k plus. I had to pull the release the other day when ours locked on after putting up with the occasional screech noise. Watching a youtube video I now understand the mechanism by which it unlatches and the only way to relatch it is to remove the unit, open it up and relatch it and install the unit back in (with new, frshly adjusted shoes). As long as there are no plastic gear fragments left floating in the actuator unit I assume I'd be good to go? Worse case scenario I suppose is I go through all that pain and find the actuator is stuffed and I need a new one .
    I agree with your comments but just to add one more thing: even if the plastic gears are broken there are repair kits available, which is basically a new set of those plastic gears you can install. There are YouTube videos on this too which helps.

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