1.) No... because the Panel fuses are fed from the TAIL relay.. you would have NO lights if the relay were FUBAR.

2.) See above.

Umm... been here before... turn up the brightness on your dash lights... and then the HU will sense better. It may be that you moved the dimmer position and the voltage isn't enough for the HU to detect.

 

2. How can I test the relay? (besides simply looking at it? It's not a fuse so it works a little differently)[/B]

It's a 4 pin relay. Its quite simple actually to test. You just need a ohmeter and a 9v battery and 2 jumper wires. You connnect the 9v to the switching leads and it should click, at this point you check the resistance across the other 2 terminals and it should go from "OL" to a reading of some sort.

 

when i tested it, i had my dimmer on full and then brought it back down to 0, nothing changed.

you are right tho, if my relay was messed up my other lights wouldnt come up.

in my previous post i said that the white w/ green wire runs to the junction connector - J6 AND that leads also into the glove box light. but i said that hadn't checked yet if my glove box light worked.

well i checked it last nite, and it doesn't.

which leads me to think that:

1. the junction connector is messed up???? (i dont know how it would but maybe???).

2. (this is what i really think it is) in the diagram there is a pick of a fuse or relay in for the glove box light. I think that might be toast. What do u think? Where is it located??? (the fuse or relay)

 

Voltmeter test of WHT/GRN wire @ HU.... w/lights on.


Same fuse as Cig Lighter & Clock lights... 7.5A PANEL 1

 

I already have tested it for current. (w/ lights on and off)

my cig lighter and all other lights (except for the glove box light) work fine. they dim etc?

i have to tell you tho i dont know what u mean with HU.

(page 35 of http://www.radphys.com/WIRING_DIAGRAM_FULL.pdf)

whats the fuse/relay that is displayed as "glove box light sw"? is it a fuse or relay and where is it?

 

whats the fuse/relay that is displayed as "glove box light sw"? is it a fuse or relay and where is it?

+12V----> TAIL RELAY ----> 7.5A PANEL 1 Fuse ----> Glovebox door switch -----> Bulb ----> GND

my cig lighter and all other lights (except for the glove box light) work fine. they dim etc?

Glovebox won't dim. Your transistor is fine, if cig light dims. I suspect you may have a blown glove bulb.

i have to tell you tho i dont know what u mean with HU.

Head Unit.... your stereo

I already have tested it for current. (w/ lights on and off)

Try voltage... not current... & post your test results. Test @ the stereo.. this will tell the story.

He's all yours Bill.

I'm counting... payback's a bitch :evil:

 

opcorn:

 

:eatpop:

 

voltage is non existing.

glove box light was burned out (replaced it).

the only thing that is still messed up is the white w/ green wire (of the OEM stereo plug) that no one seems to know where it leads to (fuse).

i mean i dont get it. usually if a fuse is blown a bunch of things should go with it. I would think even with the transistor. but in this case its nothing else but a that wire???

does any still have the OEM stereo plug....maybe you could trace it, or use it for reference?

 

glove box light was burned out (replaced it).

the only thing that is still messed up is the white w/ green wire (of the OEM stereo plug) that no one seems to know where it leads to (fuse).

IT DOESN'T LEAD TO A FUSE!!!!!!!! It, eventually, goes to the Combo Meter... then GND. It is a path to GND... not a source voltage. If you want a source voltage (a voltage which goes POS when HL's are on - but will not vary with the dimmer)... then use the GRN wire.

I suspect that you have a broken wire or bad connection to your HU. Your problem is between Connector IM pin #16, on the Instrument Panel Junction box located on the Right Hand Instrument Panel Brace, and your Head Unit. The Instrument Panel Junction Box is located below the radio & to the right. Sort of on the back side of the Body ECU & Fusebox.

Head Unit ---> WHT/GRN ----> IM #16 ----> Combo Meter Transistor ------> GND

 

IT DOESN'T LEAD TO A FUSE!!!!!!!! It, eventually, goes to the Combo Meter... then GND. It is a path to GND... not a source voltage. If you want a source voltage (a voltage which goes POS when HL's are on - but will not vary with the dimmer)... then use the GRN wire.

1. so the green wire will give me a positive only when the HLs go on?

I suspect that you have a broken wire or bad connection to your HU. Your problem is between Connector IM pin #16, on the Instrument Panel Junction box located on the Right Hand Instrument Panel Brace, and your Head Unit. The Instrument Panel Junction Box is located below the radio & to the right. Sort of on the back side of the Body ECU & Fusebox.

Head Unit ---> WHT/GRN ----> IM #16 ----> Combo Meter Transistor ------> GND

2. What is the IM#16?

3. How can I fix this?

 

1. so the green wire will give me a positive only when the HLs go on?

It should... easy enough to test.

2. What is the IM#16?

Connector IM... pin #16 in that connector.

3. How can I fix this?

Find the connector & pin... measure with voltmeter @ that point. BTW, with the dimmer on minimum (i.e. DARKEST), you should see a voltage approaching 12-14V on the WHT/GRN wire. So, measure @ the connector... if you have voltage there & not at the other end of the wire... you have a break in the wire.

 

thanks

1.(on page 36 & 37) http://www.alpine-usa.com/images/products/documents/OM_CDA-9857.pdf
This is my head unit, the orange wire is the one I used with the white w/ green one, before it went bad. Anyways, the orange is asking for a positive right? It doesn't say it, but it seems that way.

Connector IM... pin #16 in that connector.Find the connector & pin... measure with voltmeter @ that point. BTW, with the dimmer on minimum (i.e. DARKEST), you should see a voltage approaching 12-14V on the WHT/GRN wire. So, measure @ the connector... if you have voltage there & not at the other end of the wire... you have a break in the wire.

2. ok, but whats IM stand for? there is no IM connector in the diagrams.

thanks
:eslap:

 

If I interpret this correctly:
This lead may be connected to the vehicle's instrument
cluster illumination lead. This will allow the backlighting of
the CDA-9857 to dim whenever the vehicle's lights are
turned on.
Then I'd say you probably want the GRN wire... & it dims to only one setting when active.

IM is the connector name/label/nomenclature.

IM one up from lower right corner.

 

alright.
1. the instrumental panel that u are describing here, is the back of my gauges? or where is this located?

2. how do u test for the voltage? do u mean like create a small cut into the wire and meassure it way? explain please....i want to try it your way.

3. I'll use the green wire then for my gauges. do you know if it could carry three gauges (boost,temp, and wideband 02)? if it was to blow the fuse, where would it be?

thanks.

 

1):

The Instrument Panel Junction Box is located below the radio & to the right. Sort of on the back side of the Body ECU & Fusebox.

2) You should be able to get a test lead tip into the back side of the connector and make connection. The head unit end... you have either cut already or have added an adapter connector.

3) I'd say that you'd probably be better off tapping onto the 10A TAIL fuse in the center console fusebox. It only has power when the lights are on. I'll double check to see what kind of fusing is on the GRN lead.

 

I'll double check to see what kind of fusing is on the GRN lead.

7.5A Panel multi-fuse.... definitely better off w/the TAIL fuse.

 

Thank You

THANKS everyone, especially 2way THANKS.
I fixed it all.

I tested the white w/ green wire for voltage. initially there was nothing at the point where i had connected it to the orange wire from the head unit to dim it.
then i tried testing it at the junction box that you had told me to....there was voltage. at first i thought i had a break in the wire, but then i decided to test it again at the first location....and all of a sudden there was voltage. i think what had happened somehow was that the white w/ green wire some how got lose from the connection in the junction box and when i tested it for voltage at that location - my tested must have pushed it back into a solid connection. although i really did not expect to "solve" the problem this way....im glad that i did get it right with some luck and advice from you guys.,....so thanks again.

also, i did tap into the green wire (cig)for the gauges....it works just fine now.

im sure i'll be asking more question as i run into more problems, thanks for helping me with this one.

 

:thumbup:Thanks for letting us know.

 

The 7.5 amp fuse that controls the stereo, clock, and power mirrors just went out yesterday. I was not monkeying around with any electronic stuff, it just went out all of a sudden. I swapped the other 7.5 fuse that controls the power locks and that fuse tripped when I turn the key to aux power. Now I have 2 blow fuses.

I went to the dealership and order 2 fuses ($6 each), not realizing there was a spare under the hood (I should have checked the forum first... dooh). The replacement fuses are not going to be available until next Wednesday.

Any suggestions on what I can check to figure out what caused the fuse to trip.

Thanks in advance.

Matt

Wifee's '00 Celica GTS

 

does anyone know which fuse number the cig. lighter goes to????

 

Look at the nice fuse diagram Toyota provided you, right on the back of the little cover you had to take off.

 

The one labelled CIG in the center console fuse box

 

which fuse is the one for the AC lights and the gear box light? i checked all the mini fuses and they all worked fine, i just replaced all 4 multi fuses that i had to order from Toyota (cost me $26 dollars), any help would be appreciated.

 

7.5A PANel 1

Are all the center console lights out? If so, you could have a blown dimmer transistor in the gauge cluster.

 

i had that one replaced, its perfectly fine, but it still doesnt light up my AC lights, cig lighter, and gear console...i tested all fuses and they all work fine but for some reason it still dont work, where is the dimmer transistor?