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Topic: Hi beam and Lo beam question (Read 7651 times) previous topic - next topic

Hi beam and Lo beam question

Reply #120 –
one last discussion on this "diode" mod while it is installed.

i have a symptom im wanting to cure.

while in manual lamp mode, my interior instrument cluster lighting is "X" value brightness and the thumbwheel is set to maximum.

with manual light switch off and i am in auto lamp mode, the instrument cluster illumination is darker

??????????

this is with KOEO though, have not confirmed wtih KOER but either way it should still be the same condition

Hi beam and Lo beam question

Reply #121 –
Also,
Foe~ are you running your "auto lamp dimmer relay" such that when hi beams are picked, the low beams remain on **while having the diode mod in the circuit?

Hi beam and Lo beam question

Reply #122 –
Yes, I am.  I have to, because I run projectors which only have 1 light source, and rely on a shutter for high beams. If the shutter activated, but the lows shut off, I wouldn't have anything.

Hi beam and Lo beam question

Reply #123 –
i just did the "low beam on" while in high beam mod,, works perfect.

i noticed that if i do the "flash to pass" there is a tad difference so its my belief that the flash to pass works "well enough" even in this mode.

In low beam mode, it works perfectly.

Hi beam and Lo beam question

Reply #125 –
you mean your IP lighting is slightly darker while in auto lamp mode as compared to the ip illumination being brighter while in manual headlamp mode?

my thoughts????????

its my belief that the "path of least resistance" is *not* through the relay infrustructure wiring as we have them slaved.
i had the same symptom even before this mod , you prob did to and did not notice ,, so the problem was there even before. 
I will bet if we dig we will find the power source for the ip relay is a parallel branch off the headlamp source or fuse link... yep im pointing to a fuse link as the bottle kneck,, just a guess for the moment.

the right thing to do is measure the voltage at the input / output of the high current contacts on the realy to see if there is a possible and common probable fault for everyone to eventually have high corrosion or high reisistance on this relay "while in the auto headlamps on" mode,  and,,,, get actual voltage drop readings from source as compared to what appears up at the ip connector.
at this moment, to me, that really just sounds like something id rather not dig into at the moment.  the 20th is out of the garage and the Ghia is in for a sound system, next up is my bronco.

on my to do list is elimination fo the fuse links in trade for cb fuse bank.

Hi beam and Lo beam question

Reply #126 –
Possibly, however, at times it seems like with manual lights on, I have unmanaged illumination, meaning 100%.  It hasn't done it in days, and at this point I'm not sure anymore that it did it at all.  It's just odd.

Hi beam and Lo beam question

Reply #127 –
In auto mode:
The mod has shifted the IP lights load from the output of auto relay #2 to the output of auto relay #1 through a diode.

Stock auto IP circuit; fuse #4, auto relay #2, HL switch(parking light output terminal) dimmer rheostat, fuse #13,  IP lights.

Modded auto IP circuit; HL switch circuit breaker, auto relay #1, diode, HL switch dimmer rheostat, fuse #13,  IP lights.

Questions:
Is this too much load for the diode?
Is it too much load for auto relay #1 with IP and both Hi and Lo HL on together?

Hi beam and Lo beam question

Reply #128 –
im 99% sure the symptom was there without mods.

the diodes are placed in series with the relay coils only.

Hi beam and Lo beam question

Reply #130 –
im not seeing it,,,, both drawings achieve the same electrical concept.
both diodes are in series with the relay coils only.
the IP lighting is a home run "around" the main headlamp switch and through the high current contacts of k2.  We only diode or'd the trigger part of the two relays to prevent backfeed to q2 output of the amplifier.

Hi beam and Lo beam question

Reply #131 –
Re-read post 128.
That circuit #14 BR wire, instrument illumination page 145  picks the cluster illumination relay.
This only controls the brightness of the LCD.
Nothing to do with IP lights.

Hi beam and Lo beam question

Reply #132 –
Quote from: softtouch;408055
Re-read post 128.
That circuit #14 BR wire, instrument illumination page 145  picks the cluster illumination relay.
This only controls the brightness of the LCD.
Nothing to do with IP lights.
When I say IP lights, I'm using the wrong term, I'm referring to the digital speedo/cluster.

Hi beam and Lo beam question

Reply #133 –
Quote from: TheFoeYouKnow;408069
When I say IP lights, I'm using the wrong term, I'm referring to the digital speedo/cluster.
Ok.
The LCDs are on full bright with the Headlights off.
They are controlled by the HL switch dimmer with the Headlights on.
The HL switch dimmer is powered through the HL switch in manual mode.
The HL switch dimmer is powered through relay #1 and a diode in auto mode.

Hi beam and Lo beam question

Reply #134 –
Hey Foe,

im happy with this mode but........... there is the one open issue id like to solve... its a difference of potential problem that you may have seen as well on your mod.

with my headlamp switch on, auto lamps off.. my instrumentation illumination is very nice and evenly bright... much much brighter than it has ever been.
with my headlamp switch off, auto lamp on, my instrumentation illumination is lower and it appears some of my instrumentation is illuminated differntly, as in the speedo is a little brighter than other pieces parts of the dash.

Even though in both conditions, the auto lamp relays are still the power delivery parts to my interiorinstrumentation, i am stumped on where the problem is.

I can live with it but............  there is a slight difference in potential when i am in auto lamp mode vs manual lamp switch mode.
If i scale / grade this on best illumination on the cluster in manual mode being 100%, then when i am in auto lamp mode, the instrumentatoin is approx 90%.

thoughts?????
anyone?
it has to have something to do wtih the brown ckt while in auto lamp mode but no matter how long i stare at the diagram, nothing seems to stand out as the "differnt path".

this has nothign to do with the light sensor or timer becuase the brown interior illumination is still sourced from the same relay , same fuse, same wiring ect ect.

any ideas or thoughts on this?