preface jdm bb1 page 3 wiring help

bennyboy · Post by **bennyboy** » Thu Apr 23, 2015 8:25 pm

Has yours got the correct EL dimmer unit @newkid?

Now that would be ironic...

Post by **newkid** » Thu Apr 23, 2015 8:26 pm

Yea no dimmer wiring present

@Vtecmec any idea which wire? just want it so they dim as normal when headlights are on at night.

@Bennyboy ill hunt you down if its not

thats a job for another day

bennyboy · Post by **bennyboy** » Thu Apr 23, 2015 8:29 pm

Joking aside, might that not solve your issue though? OK, you won't have variable brightness, but it might dim with the lights then.

Post by **newkid** » Thu Apr 23, 2015 9:05 pm

Yea dimmed with headlights is more than enough for me, guess ill be looking into the wiring, hate wiring as well

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Thu Apr 23, 2015 9:26 pm

Yep, if you're able to dim the other dash lights but not the speedo/tacho, it means you don't have the right dash dimmer module fitted behind the aux dials. My pre-face BB1 is the same after I retro-fitted EL dials.

Post by **newkid** » Thu Apr 23, 2015 9:39 pm

wurlycorner wrote:Yep, if you're able to dim the other dash lights but not the speedo/tacho, it means you don't have the right dash dimmer module fitted behind the aux dials. My pre-face BB1 is the same after I retro-fitted EL dials.

The whole of the top doesnt dim, just the heater controls, speedo, fuel, temp clocks all stay full brightness. So ill just need one of those dash dimmers? or has it all not been wired correctly?

Post by **Vtecmec** » Thu Apr 23, 2015 9:51 pm

@NewkidTry splicing and extending the red/yellow wire from the fuel gauges (D8) to B2 on the speedo gauges. See supplement 62SS021 for the wiring diagrams and pinouts.

@Wurlycorner, try connecting your dimmer relay feed to C3 on your speedo.

Please both double check what I've posted, though by coincidence I'll be tidying up the wiring at the back of my speedo this very weekend, if you can wait Newkid, I'll draw up a wiring diagram during the process.

Post by **Vtecmec** » Thu Apr 23, 2015 9:52 pm

newkid wrote:The whole of the top doesnt dim, just the heater controls, speedo, fuel, temp clocks all stay full brightness. So ill just need one of those dash dimmers? or has it all not been wired correctly?

Someones screwed it up, even with the stock clocks, those units should always dim with the lights on, its the wiring.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Thu Apr 23, 2015 10:05 pm

Vtecmec wrote: @wurlycorner, try connecting your dimmer relay feed to C3 on your speedo.

Interesting...
And strangely enough I just found my marked up schematics and wiring diagrams today from when I did mine

This is what I worked out before doing mine, after translating the oem wiring schematics (which have mistakes in them...)

Post by **newkid** » Thu Apr 23, 2015 11:12 pm

Ive no problems waiting as have a few other things on my list of bits to do

Lude Generation

preface jdm bb1 page 3 wiring help

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