Loom/plug question UPDATE

bigwinn

bigwinn

Elite
 Lincoln UK
Site Supporter
Evening all

I am close to resolving the coupe with the bad loom.

I’ve sourced a second hand loom (yay) which is manual and with most optional extras accounted for

The only one I think I need to address is the car has xenons and the loom I’m putting in had halogens.

So- check my understanding please. I think I need to change some pin positions at the plugs? The lcm plugs are unchanged?

The pin positions I’m going to change to/from are in these pictures:
IMG_9371.pngIMG_9370.png

So left side will be on the new loom at the light connector:
Move pin 2 to pin 8
Move pin 3 to pin 2

On the right:
Same principle

What have I missed? Or correct me if I’m off the pace?

Stuart
 
Managed to compare the two looms today

First pics are new loom
After are old

Assume I can swap pins or transplant the plugs…

IMG_9558.jpegIMG_9559.jpegIMG_9560.jpegIMG_9561.jpegIMG_9562.jpeg
 
You need to repurpose the halogen high beam lines as shutter controls at both ends of the LCM to headlight loom. So for the left you've got:

LCM pin 35 -> headlight pin 3

and this needs to become:

LCM pin 36 -> headlight pin 8


Right:

LCM pin 8 -> headlight pin 3

needs to become:

LCM pin 2 -> headlight pin 8


The pins will come out complete with rubber bung and will click into their new homes. Assuming the LCM connector is the same style, you've got to take the connector out of the locking housing to release the pins. There's a little tab somewhere that will let the connector slide to the right in your last photo.
 
smorris_12 said:
You need to repurpose the halogen high beam lines as shutter controls at both ends of the LCM to headlight loom. So for the left you've got:

LCM pin 35 -> headlight pin 3

and this needs to become:

LCM pin 36 -> headlight pin 8


Right:

LCM pin 8 -> headlight pin 3

needs to become:

LCM pin 2 -> headlight pin 8


The pins will come out complete with rubber bung and will click into their new homes. Assuming the LCM connector is the same style, you've got to take the connector out of the locking housing to release the pins. There's a little tab somewhere that will let the connector slide to the right in your last photo.
Click to expand...

Had a look at this- the lcm pins won’t swap like for like- different sizes

Is that correct before I start chopping the loom about?

Here you can see pin 35 which needs to go into 36

IMG_9637.jpeg
 
Ah, I'd forgotten that's the connector at the LCM end, got caught up with thinking based on your pics of the headlight end (where the pins will swap.) The halogens are 5amp each with matching pins while signal lines are low current and small pins. You could snaffle some of the pins from the old loom with a decent length of wire and cut it in to the heavier lines. That'd be the tidiest way, otherwise you've got to add extra lengths of wire which is never tidy. The alternative is to extract a couple of full lines from the old loom and add them with a new run of cloth tape (horrible stuff) or cable ties (saggy.)
 
Yeah I think I’ll use the old loom to splice in at the lcm end with the correct pins

I’ll have to also add the pins in for the front and rear load height levellers too as they aren’t in the loom either.

Cheers
 
smorris_12 said:
Ah, I'd forgotten that's the connector at the LCM end, got caught up with thinking based on your pics of the headlight end (where the pins will swap.) The halogens are 5amp each with matching pins while signal lines are low current and small pins. You could snaffle some of the pins from the old loom with a decent length of wire and cut it in to the heavier lines. That'd be the tidiest way, otherwise you've got to add extra lengths of wire which is never tidy. The alternative is to extract a couple of full lines from the old loom and add them with a new run of cloth tape (horrible stuff) or cable ties (saggy.)
Click to expand...


On the load leveller question

I will plumb these in with feeds from the rear and front to the correct pins (pictured)

I have pins corresponding to the stepper motors (pic 2) so assuming they are all in place and will work?

IMG_9640.jpegIMG_9641.jpeg
 
Urk, yes, you'll have to add the level sender cabling. That's an embuggerance. That might actually be worth a roll of cloth tape as it's such a long run.

All cars get the headlight adjustment, it's just automatic with the Xenons, so that'll all be there.
 
Brill. Thank you

It’s only 3 wires for each sensor and as the car has its guts spilled out it’s an easy job as you say with cloth tape
 
Today was the butt clenching moment of truth when the power was reconnected

It’s gone better than expected.

Ignition on no pops, bangs or fire!

Car started- perfect!

So I can now start to put the interior back together.

Really grateful to @smorris_12 for his input so far on the lights loom amendment from halogen to xenon

I have a small couple of gremlins to resolve.

The xenons and high beam work fine- winner winner

However I have no sidelights. I think that’s because I have repurposed those lines for the xenon shutters.

I also have when I turn the sidelights and main beam on, one turn indicator light near side front showing. It very slowly blinks (on off ten-fifteen seconds).

Everything else seems good

Any ideas as to how I could get sidelights working or remedy the weird indicator behaviour?

Cheers

Stuart
 
I think I’ve realised my mistake making the indicator light come on I will check that in the am
 
Right

Sidelights sorted- needed a feed wiring in from the original pins I used for the xenon shutters

However- I still have amber indicators 'always on' on NSF. All other lights work fine. I thought I'd crossed some wires over but that made no difference

Any ideas??
 
bigwinn said:
Right

Sidelights sorted- needed a feed wiring in from the original pins I used for the xenon shutters

However- I still have amber indicators 'always on' on NSF. All other lights work fine. I thought I'd crossed some wires over but that made no difference

Any ideas??
Click to expand...
Vall's 2.5i auto does that and it has xenon's too. Only started when I fitted LED sidelight bulbs. Not sure if they are the problem or if it was coincidental. But the indicator bulb goes out as soon as the car starts. It is coded with headlights as running lights, so they come on and the indicator goes out. Very odd.
 
Mine deffo doesn’t go out when it’s started

Very weird

Not sure it’s an mot fail… as the indicators work
 
enuff_zed said:
Coding issue? Some kind of parking light setting?
Click to expand...


I’m wondering if it’s a bulb out issue

The car puts a bulb warning light on when I put the sidelights on but sidelights are ok

I think the car then puts the indicators on as a surrogate side marker

It did the same when I connected the car up and forgot to put the brake switch in place- as a default the car put the rear fogs on as a safety feature
 
bigwinn said:
I’m wondering if it’s a bulb out issue

The car puts a bulb warning light on when I put the sidelights on but sidelights are ok

I think the car then puts the indicators on as a surrogate side marker

It did the same when I connected the car up and forgot to put the brake switch in place- as a default the car put the rear fogs on as a safety feature
Click to expand...
Sounds like a reasonable assumption. Would explain Vall's issue too I think. Although they are supposedly 'error free' I think the LED sidelight bulb may be causing the error. Scanner 1.4 can switch off the checks for you.
 
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