preface jdm bb1 page 3 wiring help

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Wed May 13, 2015 1:56 pm

Vtecmec wrote:hat's right. That connector is for autos, though for some reason (I did mine about 8 years ago) I do have some wiring going to it. I'm sure I did that for a reason.

You might have just used it to put an earth in there maybe? There is a difference in the number of earths on el and non-el dials (have a look at my pin-out diagram on page 2).

From memory, this was one of the areas where the service manual diagram is wrong?

Post by **newkid** » Wed May 13, 2015 2:51 pm

Right the 2 plugs with the cut wires are on the same loom as the blue one that goes to the fusebox, this is the el dial loom isn't it. Also noticed that the daylight sensor wires are cut, were do these actually go to on the loom?

Plug one is
blue/red with black dots
red/green silver dots

Will i just rejoin these since i have the other ends of them?

Plug 2
green/red silver dots
pink silver dots

Daylight wires
light green/red silver dots
white/red silver dots?

Is plug 2 to do with the daylight sensor wires?

Cheers.

Post by **Vtecmec** » Wed May 13, 2015 5:23 pm

wurlycorner wrote: You might have just used it to put an earth in there maybe? There is a difference in the number of earths on el and non-el dials (have a look at my pin-out diagram on page 2). From memory, this was one of the areas where the service manual diagram is wrong?

That connector feeds into a circuit board that does not feed into the clocks at all on the manual dials, whether it alters a signal at all and that's why I did something I don't know.

K30DPC · Post by **K30DPC** » Wed May 13, 2015 8:36 pm

newkid wrote:

If you meant this connector with pink and green/red wires then I vote for 4WS, which you dont have as there should be more wires

Post by **newkid** » Wed May 13, 2015 11:22 pm

Car did have 4ws but its been removed.

@vtecmec and @wurlycorner i found this which may help?

http://preludeuk.forumup.com/viewtopic. ... =preludeuk

From it.

Ahhhh the flaky tape problem.... much better than the tar soaked tape that most of the looms come covered in I can tell you (but it is really messy!), I prefer the flaky ones Very Happy

I did PM san to remove the black relay box like you have done, dunno why it didn't work on his car. I think as well you lucked out not having sunroof or cruise buttons as the loom is pretty much a straight swap without all the ancilliary buttons

The guage dimming problem - this is controlled by a thick wire that is red with a black tracer, and black dots along it. It should be live when the lights are on. I dunno how electrical minded you are, but you could try running a wire from the other wires on the loom to the dials (in the 'How To' section I think I listed what wire is what)

And the simplest fix to one of your worries - the trip reset switch just pulls off, just yank it hard Shocked Laughing and it'll come off fine

Also the sunlight sensor, where am I to wire this into on the uk loom?

I may be totally off here but is the reason the dash doesn't dim because I'm using the newer dimmer relay but don't have a simmer switch wired in and the relay is looking for it?

As I've said wiring isn't my strongest point so hoping one of you guys can help.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Thu May 14, 2015 7:35 am

sunlight sensor is part of the JDM climate control only, nothing to do with anything else.
Has your car got the JDM climate control, with working a/c. If so then you should wire it in, if not, don't bother.
The wiring for the climate control is in one of the supplements, I posted the document and page ref up for Merlin, recently.

Post by **newkid** » Thu May 14, 2015 2:17 pm

Yea it has climate being a jdm but aircon is removed.

Able to help on this thick wire so I can dim the dash

Post by **vanzep** » Fri May 15, 2015 9:39 am

Did you get this all sorted out?
Wiring is a pain in the butt

Ive got to say your doing the right thing though

Between all the leaks youve sorted and all the wiring issues youve probably saved this lude from an early grave.
Top work

Post by **newkid** » Fri May 15, 2015 10:20 am

Not yet. Vtecmec been helping me out so I'll need to check a few things. Downside is I've been ill last few days so that's slowed me down.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Sun May 17, 2015 4:45 pm

Ok now had a chance to look at some wiring diagrams, instead of just guessing based on what might have been fitted/removed/generally drokked about with in that area on the car

Yours has an after market steering wheel, right?
So SRS would have had to be disabled.
One of the cut wires under the dash might be to do with the SRS unit.

Supplement 62ss020 page 23-31 shows that (a) Pink wire is the feed out of the fuse box for the Type 1 SRS unit.

Alternatively (and equally likely, given the location of the plug) it could be for the cruise control which has presumably also been disabled due to the after market steering wheel.
Page 23-81 of that supplement shows the digram for the cruise control. Pink feeds the clutch pedal (MT)/shift lever position (AT) cruise control switch.
That circuit also shows that a Green/Red wire feeds off to the steering column slip ring for the cruise buttons, but it describes that as light green/red, rather than green/red. Looking in your pic and comparing against the adjacent connector, I don't think that cut wire is Green/Red (whereas the the adjacent plug has a 'light green' wire.)
Green/Red is used for the sunroof, but that is evidently still working in your car, so it can't be for that.

So basically, what I'm saying is, at the moment I don't know what the Green/Red wire might be for yet

Same supplement, Page 23-63 shows that Red/Blue could be to do with a seat belt reminder.

The other cut wire in that pic (Red/Green) could be to do with dash dimming, going on Page 23-70 of that supplement (output from the dash dimmer variable resistor into the dimming control unit)

None of this can be conclusive just from the pics though, because we don't know which of these looms are original from the car and which are from a donor car (for the dash gauge wiring) and even what age/spec car it was that the donor loom came from!