Define TAJAR anyone?

[StuartFC]

Hi,

Forgive if covered before but cannot find references elsewhere that make sense to me quite.

Van: MK7 RWD 2011 XLWB.

Issue: Doors (now) lock but horn honks every time and red door dash light on.

Got Forscan on it and seem to maybe have narrowed things down a bit using live data:

CARGO_UL = lock
CABIN_UL = lock
Hood_SW = close
LFAJAR = close
RFAJAR = close
LRDR_SW = close
RRDR_SW = close
TAJAR = **OPEN**

My question is, should I be looking for a redundant socket or non-standard wiring for an actual tail gate / lift / option that is faulty OR is that a term used for one of the actual doors? I imagined it could be the term chosen for the side door since I can't find any reference to one in Forscan.

I've metered the side door pins from door internal wiring to inside van and they have continuity. I've tried every permutation of the door ajar plunger wiring - all cut, black only, green only, black and green and all connected together to simulate working or broken switch.

TAJAR = side door issue, or something else?

Many thanks for this forum and any replies!

Stu

[metalworker0]

tail as in tailgate... perhaps

all the best.mark

[PizzaVan]

I think it is tailgate ajar switch. As much as i understand then tailgate ajar switch what senses if the door is fully closed or not.

[tranmx2]

2012 2.2 RWD Mk 7 XLWB E5.
Has:
Drivers door. Passenger door.
Side door L - Side door R.
2 Rear doors.

No bonnet switch. No tailgate.

If a door is opened the red light on the consul is on.

Not sure about this:
If the passenger door is closed but not locked and the drivers door is closed then locked the horn beeps.
When the drivers door is being locked and one door is open the horn beeps.

May have a look at Forscan in a few days re' the list you have in live data.

Possibly the harness for the tailgate is on the van - maybe the wiring/connector is damaged.

[knobby1]

The horn beeps when locking because the system "thinks" a door is open...even when it is closed...one or more of your doorlock mechanisms is not happy.

Also check the "push pins" and contacts on the SLD.

Lord Knobrot

[StuartFC]

Hi,

Thanks for the replies! I am honoured.

Van is just a Jumbo, standard panel model, no lifts. There's defunct reversing sensors and a dead camera and can't be sure how they are wired in.

I have read that key fobs, auxilliary batteries, and even cabin dome lights can cause this but seeing "TAJAR = open" in Forscan has got my hopes up... a bit. Just not sure what exactly it is referring to.

I should say I have a second van (for sale soon) so I can borrow working parts. I'll try swapping rear lock. Front locks are behind the window tracks so I'll start with the tail end.

Be well /safe and have a nice day,

Stu

[tranmx2]

CARGO_UL = lock
CABIN_UL = lock
Hood_SW = close
LFAJAR = close
RFAJAR = close
LRDR_SW = close
RRDR_SW = close
TAJAR = **OPEN**

All closed.JPG

Drvrs ajar.JPG

18 04 25
Forscan doors closed ajar.
Drivers door closed = closed. Drivers door open = ajar.
Passenger and side doors unlocked and opened = no change on Forscan which showed closed.
Raining did not do back doors or bonnet.
No horn on having the passenger/drivers/side doors unlocked and opened.

Forscan V 2.3 – 46.

[StuartFC]

Hiya Tran...,

I get you with the rain. Stepped out to do a lock swap and down it came.

If you see no change on Forscan after changing something I found it likes a refresh (stop / start stream).

Updated to latest Forscan. What adapter are you using? I'm using a switched ELM327 500k USB.

Enjoy the holiday

[tranmx2]

The OBD2 adaptor is ELM 327 FTDI USB with manual switch from Tunnel Rats on ebay.
Forscan V 2.3 – 46. The 3 year license has expired in 2024.

Had Forscan on again today.

Only the drivers door shows ajar when open.
Opening the pass', both side doors, both back doors and bonnet individually did not change any of the door designations on Forscan, they remained showing - closed.
Only the passenger being unlocked and the drivers door being locked caused the horn to beep.

Perhaps within the BCM there is the means to select how the door lock mechanism operates, what is designated and what shows.
Perhaps Forscan without the license does not do all that the licensed version does.

[StuartFC]

It would be good if mine worked like that. Yeah, maybe I could download something from Forscan with a paid licence. A modified BCM firmware might help - if they exist.

[tranmx2]

There are vids re changing things. Could be if you go into the proceedure to change something the doors/locks are there as well.
Most that I have seen are USA re' the 150 pick up truck. There was one about checking the rear lights.
S Y Diagnostics may have a related vid on youtube. There was one where he mentions Bamby, Donald Duck mode which is to do with changing what happens to something.

[tranmx2]

2 S Y Diagnostic vids that may be of help.
https://www.youtube.com/watch?v=kWp5QqzuuTk
https://www.youtube.com/results?search_ ... o+locking+
Back up data.
May not show you what you want to do but could show the way to do it.

[StuartFC]

Hi,

I have it fixed as needs be... 'Tajar_open' was in fact the main rear (right) door catch not latching due to bowed-in left rear door.

Horn still honked on locking because of something in cabin area which I remedied by changing the locking configuration with Forscan to 'not configured' or whatever the exact term is.

So thrown by terminology and a couple of red herrings with other doors but the van locks without drama now.

Thanks for your replies - I wrote result earlier but didn't hit 'submit'.

Stu

[StuartFC]

Thanks Tranmx2.. there are amazing and helpful videos out there for sure. And helpful people like your good self!