Weird electrical gremlin

Random Caddy chat.
Not the place for sale or wanted topics.
Stickertone
100BHP+
Posts: 108
Joined: Fri Apr 12, 2019 9:28 pm

Weird electrical gremlin

Post by Stickertone » Mon Jan 13, 2020 7:41 pm

Hi guys , my caddy van is driving me mad, the rear barn door open sensor , hasn't worked for a few months, however that was better than now...... I was driving along today and the dash beeped at me and a picture of .the van appeared on the dash display, showing the back door open, the interior light in the cab and rear of the van came on..... The rear wiper is no longer working..... , I've switched the interior lights off manually to extinguish them , however, now at home, I locked the van and the alarm has gone off about 3 times in an hour, so have had to leave it unlocked ( not ideal) . I changed the rear lock with the microswitch in about 6weeks ago, that didn't change anything ( rear door alert didn't work before or after changing it) in wondering if it may be broken wire or wires going into the door , also wondering if it may be an earth as its affecting more than one thing ( sensor,and wiper... ) any thoughts boys? Cheers

User avatar
Giddy
Hyper Poster
Posts: 1038
Joined: Fri Aug 24, 2018 5:56 pm
Engine size/power: 1.4TSI
Location: Gloucestershire, UK

Re: Weird electrical gremlin

Post by Giddy » Mon Jan 13, 2020 7:46 pm

Instagram: @giddywagen
Caddy 4, Highline, 1.4 TSI, Build thread https://www.caddy2k.com/forum/viewtopic ... 13&t=37368

RatMan
Caddy2k Groupie
Posts: 5
Joined: Sun Jan 05, 2020 9:32 pm
Engine size/power: 1.6 CR TDI (75bhp)
Location: Andover
Contact:

Re: Weird electrical gremlin

Post by RatMan » Mon Jan 13, 2020 9:09 pm

Definitely check all the wiring as I had an issue similar and found 2 broken wires.

Sent from my G8141 using Tapatalk
Last edited by dan@biali on Tue Jan 14, 2020 10:25 pm, edited 1 time in total.
Reason: removed quote

ZappaF
Caddy2k Groupie
Posts: 40
Joined: Thu Oct 24, 2019 10:45 am
Engine size/power: 1.6 CR TDI (102bhp)

Re: Weird electrical gremlin

Post by ZappaF » Mon Jan 13, 2020 10:36 pm

I had this problem a few weeks ago. I was advised to look at the lower passenger side barn door catch mechanism. I took it out, unplugged the electrical connector and gave everything a quick clean. There was a little bit of moisture in the electrical connector.
I put it back together and haven’t had the problem come back. No idea where the moisture came from as everything else was dry...

User avatar
Mickthebell
Caddy Fan
Posts: 72
Joined: Thu Apr 26, 2018 8:05 pm
Engine size/power: 2.0 CR TDI (108bhp)
Location: Surrey

Re: Weird electrical gremlin

Post by Mickthebell » Mon Jan 13, 2020 10:59 pm

Same as me mate on my old one you can get a replacement lower catch with built in micro switch from TPS for around £20. It's easy to change

Stickertone
100BHP+
Posts: 108
Joined: Fri Apr 12, 2019 9:28 pm

Re: Weird electrical gremlin

Post by Stickertone » Mon Jan 13, 2020 11:07 pm

I changed it for a new one about 6 weeks ago ..... I may just unplug it so it doesn't think it's open , do I need to bridge it too ?ta

User avatar
Doc
Not God, just a bellend
Posts: 13976
Joined: Thu Jan 01, 1970 1:00 am
Engine size/power: 2.0TSI EA888 Gen3
Location: Monaghan, Ireland & Leicestershire, UK

Re: Weird electrical gremlin

Post by Doc » Mon Jan 13, 2020 11:13 pm

If you have problems with moisture in your barn door bottom lock, make sure your high level brake light isn't letting water in.
Image
Image
2013 Caddy with EA888 Gen3 2.0TSI DSG, Superplus MSP19 , Caddy4 rear lights, Polo GTI (mk7 style) steering wheel, Relentless Tuning front coilovers, Audi A6 S-Line front seats, Boxster fronts & GTI rear Brakes, 3D Colour Premium dash cluster, Caddy life arm rest, Motexion bulkhead, MIB head unit


I have genuine VCDS Hex V2 & VagCAN Pro for any of your programming needs.

User avatar
tommyzooom
Hyper Poster
Posts: 6178
Joined: Fri Apr 10, 2009 11:37 pm
Engine size/power: 1.6 CR TDI (102bhp)
Location: Donegal

Re: Weird electrical gremlin

Post by tommyzooom » Tue Jan 14, 2020 12:25 am

IMO it's a poor design, which allows moisture to pool inside the connection housing.
It happened on every Caddy I had..... I removed the bottom door lock. Dried it out thoroughly, and put some grease in the housing. No problems since.

Nathan107578
Caddy2k Groupie
Posts: 7
Joined: Thu May 16, 2019 11:31 pm
Engine size/power: 1.9 TDI (104bhp)

Re: Weird electrical gremlin

Post by Nathan107578 » Tue Jan 14, 2020 7:24 am

I had the same problem with my drivers door alarm kept going off it was the door locking mechanism £20 later from the scrapyard all sorted

ZappaF
Caddy2k Groupie
Posts: 40
Joined: Thu Oct 24, 2019 10:45 am
Engine size/power: 1.6 CR TDI (102bhp)

Re: Weird electrical gremlin

Post by ZappaF » Tue Jan 14, 2020 1:48 pm

Doc wrote:
Mon Jan 13, 2020 11:13 pm
If you have problems with moisture in your barn door bottom lock, make sure your high level brake light isn't letting water in.
Can anything be done to improve the seal of the brake light rubber to the door?
The flat light doesn’t fit brilliantly onto the slight curve of the door...

User avatar
Doc
Not God, just a bellend
Posts: 13976
Joined: Thu Jan 01, 1970 1:00 am
Engine size/power: 2.0TSI EA888 Gen3
Location: Monaghan, Ireland & Leicestershire, UK

Re: Weird electrical gremlin

Post by Doc » Tue Jan 14, 2020 4:08 pm

The seal which is part of the light is sufficient to take up the difference with the curve, it is important not to over tighten the light as it will split after it heat cycles and water will get in.
Image
Image
2013 Caddy with EA888 Gen3 2.0TSI DSG, Superplus MSP19 , Caddy4 rear lights, Polo GTI (mk7 style) steering wheel, Relentless Tuning front coilovers, Audi A6 S-Line front seats, Boxster fronts & GTI rear Brakes, 3D Colour Premium dash cluster, Caddy life arm rest, Motexion bulkhead, MIB head unit


I have genuine VCDS Hex V2 & VagCAN Pro for any of your programming needs.

Post Reply