Summary of faults - dig in!!

[Leeds_finest]

Right,

After a long string of issues (ABS, STC, CCM, potential DIM) I managed to pop up to my mechanic friends house today so he could run a diagnostic on my car. At present, the car runs fine but has various warnings and messages etc - this was the reason for my visit. We interrogated all of the modules and mostly found that it was full of communication errors as I had been using the car with no clocks or CCM fitted (for short local journeys only) as I was fitting replacement bulbs and investigating possible DIM failure. Once we had cleared the codes, cycled the ignition, cleared any codes again, started the car and driven it... we finally interrogated the ECU/modules again and this was what we found:



UEM0004 siren communication fault. After researching, this relates to the dash warning that I have 'ALARM SYSTEM SERVICE REQUIRED'.

Usual 'BULB FAILURE POSITION LIGHT' warning showing as before.

Orange triangle remaining on dash but previous SRS warning now gone.



It would appear that the alarm issue is fairly recent. I'm almost 100% sure that message wasn't present when I bought the car and I don't recall seeing that very often. I need to get at the alarm siren and module so if anybody could kindly point me in the right direction then I would appreciate it. I have read that the alarm/module may need replacing but in some instances it may need a handy bit of resoldering - anyway I MUST check it asap.

Furthermore, the bulb failure warning is showing, can anyone explain this? Is it relating to faulty headlight levelling motor? I have the drivers side headlight motor unplugged as when it is plugged in it makes a horrendous buzzing noise - I guess this is all related. Any cheap/easy fixes or repairs? Won't bother replacing with new item just wondered if there was an easy fix. Oddly enough, despite dash message, this fault does not produce a DTC on the diagnostics.

Why does my orange triangle remain? Is it because there is a fault present? Even though it is only an alarm fault? Or do I simply need the light resetting? I have been told by Chad @ GRN that the light can't be reset if there are faults present.



Cheers

[Leeds_finest]

Oh, it's worth mentioning by the way, that when plugging the headlight leveller back in, the fault remains displayed on the dash... maybe this isn't the cause of the message after all?

EDIT:

After reading up on the internet, it would seem the bulb message relates to a bulb that's blown. I'll check but I'm fairly sure I haven't got any blown bulbs. Also suggests that it could be a bulb that's not blown but is weak or has a bad connection... well that'll be fun to diagnose!!

[merc85]

I thought the alarm service fault related to the battery in the alarm module.

Position light, possibly rear tail light, side light

[V70 Graham]

The headlight leveller won't have anything to do with the bulb failure warning.

[Harvey]

The rear light units have two rear markers bulbs in each side ,and a side facing bulb as well thats 3x bulbs per side at the rear.
Not fitted any LEDs in the car as this can upset the car sensors.

[Leeds_finest]

Ok will go and check that each side has three.

Also mine's pre facelift P2 so doesn't have those small LED's in rear light units.

Regarding battery for alarm, either way I will investigate, so if it is a duff alarm battery I take it that will require new unit? ebay'd the part number and it's £170.

[Harvey]

The alarm kit is a better way to buy it,the siren unit is sealed and the battery's leak acid onto the pcb inside so it's not likely you can fix it.

[Leeds_finest]

The alarm kit is a better way to buy it,the siren unit is sealed and the battery's leak acid onto the pcb inside so it's not likely you can fix it.

I had read that on the internet too, although sadly I won't be spending that amount of money on this car. Still worth a look though, I think it's near one of the front inner wheel arches? I had read one instance where someone's alarm siren had become disconnected somehow, easy fix if that was the case.

Right regarding tail lights I have checked the back and with the engine running and the lights switched to 'AUTO ON' it appears there is only one bulb illuminated on either side (lower light unit - not upper one). I have taken a picture but I'm not sure how to upload it?

[Leeds_finest]

Ok,

Poor reference but:



If 3 and 4 are meant to be illuminated simultaneously when the engines running then the upper ones are out on both sides. Bloody bulbs, I'm certain I changed the drivers side one of those not long back...

[Harvey]

Heres a photo of mine.





The lower bulb is the twin filament side light/brake or fog not sure.

[Leeds_finest]

Heres a photo of mine.





The lower bulb is the twin filament side light/brake.

Thanks for the picture.

Mines pre facelift and ours doesn't have the LED running lights but going by your two main bulbs in the middle, both of my upper ones are dead.

Thanks for the help, will replace tomorrow.

Anybody help with the alarm siren or triangle?

[Dangerous Dave]

I think the position light is in the side of the front headlamps.

I have a pic somewhere, will see if I can find it.

[M-R-P]

position light refers to either the front or rear sidelights. normally the rear. put the sidelights on and walk around the car. if it's a rear one, just give the cluster a thump... usually brings mine back on. the bulb failure will keep the triangle on. the alarm warning won't keep the triangle on but goes away after about 15 seconds so it's not so bad.

[Leeds_finest]

Update:

The good news is thumping the drivers side rear light cluster brought both drivers and passengers rear bulbs back on. I have removed both bulbs/holders an will give them a clean up on the contacts to see if this improves the scenario. Also, the triangle went off as Mart said so thankfully nothing else causing the triangle, just the bulbs. May remove the rear clusters just to check all connections are ok - is it just the two small nuts that are visible to remove these? Or any hidden ones?

Finally, anybody have an update on where the siren unit is? Still want to fetch this off and check it.

[stephenevans99]

The alarm siren is tucked up in the drivers side wing.

To get access it's the o/s/f wheel off, drill out a few of the rivets that secure the plastic arch liner, chisel off the anti tamper bolt that secure the siren cage & then it can be removed and replaced.

[Leeds_finest]

Cool thanks for the advice.

[Leeds_finest]

Regarding rear light bulbs...

I think it may be CLUSTER TO LOOM that's the problem as opposed to BULB TO HOLDER. The bulb connections look more than adequate in the cream coloured holder. May get cluster off next and clean connections.