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Thread: EPB Faultcode U0002 - pre-trip post major service yellow dash alert

  1. #1
    Join Date
    Apr 2008
    Posts
    176

    EPB Faultcode U0002 - pre-trip post major service yellow dash alert

    Hey guys,

    Was loading up the D4 last night, ready for a south coast 2 night camping trip to test out some of our new gear before heading bush. Unfortunately moving forward a few metres to leave space in the garage and got thrown a Electronic Park Brake error message on the dash - fault code U0002. Switched off, restarted then checked with the scanner, cleared the code.

    Repeated the process this morning for fridge loading and the same error message. No physical alerts - grinding / noise etc and the EPB appears to work.

    I did a quick Google on this and what I found was replace EPB module ( expensive $2k ish and difficult to access ), also cleaning sensors / wiring has appeared to work but that's out of my expertise most likely. I did have the 72,000km serivce done 2 weeks ago, vehicle has done 50,000 and no recent sand / dust / muddy conditions. Been to Bunnings a few times since.

    Obviously I don't want to commence a multiweek trip next Sunday with errors and faults that cascade to further inhibit the vehicle.

    What to do next? Is it a concern? Is there an "easy inspect and clean fix"? OR am I best served back to the dealer who serviced - vehicle had a clean bill of health.

    Thanks, I'm sure someone has an answer. Meanwhile going to camp in the backyard.

  2. #2
    Join Date
    Apr 2008
    Posts
    176
    Have just drove the block to check if any other fault code present - found the following




  3. #3
    Join Date
    Nov 2015
    Location
    Melbourne
    Posts
    487
    Really hard to diagnose from a distance, but when odd electrical things start happening, always suspect the battery first. Don't just get it tested, replace it with a known good battery, reset the BMS and check for errors.
    When replacing the battery, check the earth connections.
    Was any electrical work done at the last service? A simple loose earth may be causing your problems.
    2013 D4 expedition equipped
    1966 Army engineering trailer
    (previously SII 2.25 swb, SIII 2.25 swb & lwb, P38 Vogue, 1993 LSE 3.9V8 then HS2.8)

  4. #4
    Join Date
    Nov 2015
    Location
    Melbourne
    Posts
    487
    Sorry for disjointed posts, but replying by phone. Call the service people as I really suspect a poor earth is your problem. Find out where abouts on the car they were working and check those earth points. They are scattered all over the car. If they tested the battery, start checking there. If you find a loose terminal or battery earth, that could be it. No immediate need to change battery like I suggested above.
    2013 D4 expedition equipped
    1966 Army engineering trailer
    (previously SII 2.25 swb, SIII 2.25 swb & lwb, P38 Vogue, 1993 LSE 3.9V8 then HS2.8)

  5. #5
    Join Date
    Apr 2012
    Location
    Whyalla, South Australia
    Posts
    2,743
    Iíd also put a carton on it that they didnít remove the rear discs and adjust your EPB or grease it.

    They never bloody do!
    Cheers
    Tombie

    D4 MY11 - Stormy

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  6. #6
    Join Date
    Apr 2008
    Posts
    176
    Quote Originally Posted by DieselLSE View Post
    Really hard to diagnose from a distance, but when odd electrical things start happening, always suspect the battery first. Don't just get it tested, replace it with a known good battery, reset the BMS and check for errors.
    When replacing the battery, check the earth connections.
    Was any electrical work done at the last service? A simple loose earth may be causing your problems.
    Aux Battery was replaced, UHF and extra fridge Anderson cable wired into the traxide after the LR Concord service.

  7. #7
    Join Date
    Apr 2008
    Posts
    176
    Quote Originally Posted by Tombie View Post
    Iíd also put a carton on it that they didnít remove the rear discs and adjust your EPB or grease it.

    They never bloody do!
    I hope so, even at a main dealer does it get skipped? EPB Faultcode U0002 - pre-trip post major  service yellow dash alert

  8. #8
    Join Date
    Nov 2015
    Location
    Melbourne
    Posts
    487
    Quote Originally Posted by dukemasterpro View Post
    Aux Battery was replaced, UHF and extra fridge Anderson cable wired into the traxide after the LR Concord service.
    Bet you pounds to peanuts that you have an earthing issue. Start at the batteries.
    2013 D4 expedition equipped
    1966 Army engineering trailer
    (previously SII 2.25 swb, SIII 2.25 swb & lwb, P38 Vogue, 1993 LSE 3.9V8 then HS2.8)

  9. #9
    Join Date
    Apr 2008
    Posts
    176
    Fingers crossed its that simple, logic fits anything fault code always seems to point back to battery.

    My cranking battery is about 18 months old, Varta from battery world. Wondering if changing that is an idea anyhow?

    Itís not showing any issues with the Bluetooth bm2 sensor though.

    Iíve booked back in with Concord LR on Wednesday and back with Adventure Merchants to get my driving lights fitted plus the loose ABG 25 connector from the weekend. Decided against DIY on that.

    One way or other the rogue earth connector is going to be found out.

  10. #10
    Join Date
    Jun 2009
    Location
    Perth
    Posts
    420
    As a precaution during your trip, just don't use you EPB. Put some tape over it.
    Rod

    D4 MY16 5 seat TDV6 - LLAMS, Custom Drawers, OL Bar, D697, GOE Rims, Lithium DBS, eDiff, Outback Accessories Long Range Tank, GAP Tool, Rhino Roof Bars & Platform rack, Mitch Hitch, TPMS & Safari Snorkel

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