No Brake lts/Hazards etc on Auto H/Lts + Long Hard Reset

[Mungus]

So at 11 days old (700kms) I get a 'can't find key fob' message. I expected this at some stage, just not at 11 days old or before I got a diagnostics tool.
Do the under column procedure and get her started, but no cabin electrics and a camera system fault message. Several start attempts with different fault messages occurring at random (HDC, ESP, Suspension, Speed Limited) where I could not lock/unlock after turning off and had to find key fob each start. So I'm left with no speedo, tacho, stereo, a/c, windows, not even brake lights, blinkers and worst of all no Hazard Lights.

I rang the dealer and told them there's no way it was going on a truck and I was going to do a hard reset. Told him I was going to disconnect battery leads and short together as I have read on here. He suggested they usually disconnect and leave for an hour to drain residual voltages and then re-connect.

So I disconnected and shorted the leads first, reconnecting with no result. Then I tried the dealers suggestion leaving disconnected for an hour and when I reconnected all was back to normal. Yay... Until I switched it off to pack up (big mistake) and back came all the faults and issues. I cautiously drove into town without brake lights, blinkers or hazards, keeping as much distance between myself and other traffic. When I got to the dealer he noticed that as he drove into the darker workshop the headlights came on.

Found out that under this fault condition, with the headlight switch in auto no lights worked in daylight, but turning them to manual on and all brake lights, blinkers and hazards worked fine. Sleeping at the dealer tonight with a BCM issue the main issue - software glitch.

[LandyAndy]

Sounds like you have bought a dud!!!!
Look,Im happy to drive my D2 up there and take it off your hands for a straight swap:D:D:D:D:D:D
Hope its just a glich.
ENJOY
Andrew

[Mungus]

It'll be fine Andy. Mighty considerate of you though.

[Redback]

Take it, or have them(LR Assist) take it to the dealer.

Baz.

[sheerluck]

.........Sleeping at the dealer tonight with a BCM issue the main issue - software glitch.


Take it, or have them(LR Assist) take it to the dealer.

Baz.

:angel:

[Redback]

:angel:

Yeah didn't see that bit until later:cool:

[Mungus]

D4 had a good sleepover. Got it back next afternoon after BCM re-flashed and gateway re-calibrated. Not sure yet exactly what the gateway is, but I assume it is a communications node that allows the BCM to talk to the other modules. Anyway drive 500mr to work and then on the way home 500mr right outside the dealer (closed) and everything went dead again. Still had hazards, blinkers, brake lights, although I didn't know until 10 minutes later when two people to at traffic lights told me. The dash was dead again, not even a noise from the flasher unit. So take it back the next morning and dealer has arranged for the BCM to be replaced. I asked to swap it out with one they had on the lot for a weekend trial, which they were quite willing to do, but turns out they are VIN locked. There is a one new BCM available in Australia which is being air bagged up. Probably won't get it back till Wednesday next week. Dealer service and sales are very sympathetic and have prioritised the work each time. Glad I bought local, might be a different story had I not.
Llams kit arrived, just wish I had a car to install it! Good looking bit of kit Graeme. Prospeed rock sliders on order.

[Redback]

Looks like the dealer is being very helpful, good to see.

Baz.

[Mungus]

Looks like the dealer is being very helpful, good to see.

Baz.



Yes Baz, I am very satisfied that I bought from them (local). The salesperson said yesterday that at a seminar she went to recently, a lot of dealers praised the support from LRA. I questioned this, as we have heard of some harsh dealings on here, but she reasserted that this was the overwhelming response and in her twenty years of experience had herself a few exceptional circumstances where LRA's support was nothing but proactive. I think that other thread needs this put into it, although it may not be any comfort to the OP, it may for other readers.
Cheers. Mungus

[Graeme]

Hopefully the BCM's earth points have been checked.

[Mungus]

Thanks for the tip Graeme. Will certainly mention it on Monday!

[Mungus]

So at 21 days old and spending a very disheartening total of 13 of those days in the workshop, the fault has been identified. After many days of systematic tests, LRA report analysis and subsequent tests, all of which proved faultless, the tech moved the car late yesterday afternoon and the dash lights came on. So he decided to step outside the square and do a bit of his own 'process of elimination' fault finding, separating the front half of the vehicles Canbus network from the back half of the car. A phone call at 6.00pm confirmed he had finally found an actual problem. This was a long time coming and my worst fear was that nothing definitive would be found and I would get the car back to see how it faired. The dealer did not disagree with my comment, that if that was the case and it faulted again, I would be handing back the keys and waiting another 4 months for a replacement vehicle. I have been an electrician for over 30 years and have worked on some very complex systems in my time and across many different fields of the trade, so I thoroughly understand the difficulty of finding an intermittent fault and as such was very patient and calm throughout this whole ordeal. What he (the tech - my newest best friend) found, was where the rear a/c unit is located behind the left cargo space panel, a cable loom that runs under the a/c unit was being squashed and rubbing on the metal body, wearing through the Canbus cables and intermittently shorting to earth. He has moved the a/c unit slightly higher, put some of that door seal strip over the panel joint edge and insulated the worn/cut insulation. Car was cleaned and I was just as excited to get her back as the day I picked her up. The report will be sent to LRA who will most likely include the cause for diagnosis of future similar issues, but for any MY14 owners out there with rear a/c, keep this in mind if you ever lose your dash cluster, stereo, a/c, windows and door locks. Just thought I'd also mention that the Dealer - NT Automotive Group and Land Rover Australia provided excellent service and were very sympathetic to my situation. I drove a brand new BMW series one as a loaner, sort of nice, but so glad to be back in my D4.
Cheers Mungus.

[Graeme]

That was good work by the tech.

I had a long-term problem with a TD5 D2 that a new mechanic started to work with me and get stuck into looking properly for the cause until his boss told him to stop wasting time. I suspect that mechanic didn't last long at that dealership.