gen4.5 engine room relay box no. 2

[fenixus]

I have a question to gen4.5 (2000-2001) owners or other members who know the subtle differences between camry generations.

Last time i checked the electrical wiring diagrams for my car (it was for 2001 actually, but should be same) I noticed that in max option there are 3 relay/fuse boxes under hood.



I understand that Engine R/B no.3 is purely for ABS and/or traction control (i don't have either of them obviously), so this one I don't have and is OK. it's even marked as optional somewhere in 2001EWD.

However what catches my eye is the Engine R/B no.2 ! it doesn't say optional, so i should have it, but i don't ?
I was thinking, maybe it's for DRLs (i don't have them either) ? can anybody confirm ?

My car is 2000 Solara SE 2.2L which equals to 2000 Camry 2.2L (LE trim i think or so) per under hood contents.

thanks.

[chronoti]

thats what it is on the gen 3 .....

[skuttduck]

Originally Posted by fenixus

I have a question to gen4.5 (2000-2001) owners or other members who know the subtle differences between camry generations.

Last time i checked the electrical wiring diagrams for my car (it was for 2001 actually, but should be same) I noticed that in max option there are 3 relay/fuse boxes under hood.



I understand that Engine R/B no.3 is purely for ABS and/or traction control (i don't have either of them obviously), so this one I don't have and is OK. it's even marked as optional somewhere in 2001EWD.

However what catches my eye is the Engine R/B no.2 ! it doesn't say optional, so i should have it, but i don't ?
I was thinking, maybe it's for DRLs (i don't have them either) ? can anybody confirm ?

My car is 2000 Solara SE 2.2L which equals to 2000 Camry 2.2L (LE trim i think or so) per under hood contents.

thanks.

I think it is for daytime running lights. I don't think I have that box either. I can check later if you want. The OEM fog light installation instructions have you tap into a light in the daytime running light circuit. I believe the PDF was posted here on this site.

[fenixus]

Originally Posted by skuttduck

I think it is for daytime running lights. I don't think I have that box either. I can check later if you want. The OEM fog light installation instructions have you tap into a light in the daytime running light circuit. I believe the PDF was posted here on this site.

thank you. let me know if you have that box.
i'm very curious because i don't know if someone before me modded this car's electrical wiring like that or this box was simply never there.

I have OEM fogs and OEM H4/HB2 head lights. no DRLs or any sign of that anywhere (no light sensor on dash, no DRL lights switch by steering wheel, etc.).

[adalex]

well was trying to take a pic of mine but i have that Engine Room #2 and is infact the DRL relay, I have a 99 camry le I4 its actually attached with a bracket to the front of the battery. I realized what it was when I installed my oem fogs and since i had drl I had to use a scotchlock and tie a wire with the fog lights to one of the wires going to one of the fuese so when I turn on my hi beams my fogs shut off

[fenixus]

Originally Posted by adalex

well was trying to take a pic of mine but i have that Engine Room #2 and is infact the DRL relay, I have a 99 camry le I4 its actually attached with a bracket to the front of the battery. I realized what it was when I installed my oem fogs and since i had drl I had to use a scotchlock and tie a wire with the fog lights to one of the wires going to one of the fuese so when I turn on my hi beams my fogs shut off

i have no idea where my fogs are wired, but they behave same way as yours, when i turn the high beams on then the fogs go off, though i have no DRLs ?

so far it confirms that relay box no. 2 is for DRLs i think.

i might need to take a closer look at 2001 EWD per head lights wiring and stuff... it's all so confusing ...

i think gen4 (97-99) may have slightly different wiring than gen4.5 (00-01), at least ECM is different (2-row pin connectors vs 3-row pin connectors).

let's wait for more input, i'm very curious of opinions of other gen4.5 drivers (no DRLs would help most).

[ajkalian]

Originally Posted by fenixus

let's wait for more input, i'm very curious of opinions of other gen4.5 drivers (no DRLs would help most).

I've got 'em all in my 2000 Camry LE 1MZ-FE. And to be honest I don't know what any of them do. I'm really lousy when it comes to electrical stuff.

[skuttduck]

Originally Posted by fenixus

i have no idea where my fogs are wired, but they behave same way as yours, when i turn the high beams on then the fogs go off, though i have no DRLs ?

so far it confirms that relay box no. 2 is for DRLs i think.

i might need to take a closer look at 2001 EWD per head lights wiring and stuff... it's all so confusing ...

i think gen4 (97-99) may have slightly different wiring than gen4.5 (00-01), at least ECM is different (2-row pin connectors vs 3-row pin connectors).

let's wait for more input, i'm very curious of opinions of other gen4.5 drivers (no DRLs would help most).

I helped Adalex a lot with the fog light install. In case you wonder, on a Gen 4.5 the wire that is tapped for the OEM fogs is under the steering wheel.

[ajkalian]

Originally Posted by fenixus

I have a question to gen4.5 (2000-2001) owners or other members who know the subtle differences between camry generations.

However what catches my eye is the Engine R/B no.2 ! it doesn't say optional, so i should have it, but i don't ?
I was thinking, maybe it's for DRLs (i don't have them either) ? can anybody confirm ?

The box is for the Day Time Running Lights. I removed the cap on the box, and sure enough, there it was printed right on the underside of the cover.

See, I told you I wasn't very good with the electrical stuff.

Now that I know what's in the box, I think I'll just disconnect the DRL. I always thought that was a stupid idea. What EPA dweeb came up with that idea anyway?

[fenixus]

Originally Posted by ajkalian

I've got 'em all in my 2000 Camry LE 1MZ-FE. And to be honest I don't know what any of them do. I'm really lousy when it comes to electrical stuff.

so it means you've got ABS (not sure about traction control) and you have Daylight Running Lights

I don't have either of them ...

here is wiring for gen4.5 in both versions:

1) no DRLs


2) DRLs (2 pics)




3) and the relay boxes finally described (per 2001 camry solara EWD). it seems in deed that the r/b no.2 is mostly for DRLs after all!
however there is one thing that worries me "A/F HTR relay" over there ?

since i don't have this box, then i do not have this relay either ... or i'm missing something ...
and i should have an "A/F HTR fuse 25A" in engine r/b no.1 (need to check if i have it or there is an empty spot).

engine r/b no. 1


engine r/b no.2


engine r/b no. 3


there is also engine j/b no.2 which basically right by engine r/b no.1


and there is also instrument panel j/b



Sorry for spamming this thread with so heavy pics. just hoping it helps gen4.5 owners at some point. i'm just trying to make sure electrical system have never been altered on this car (my infamous fuel trim madness) ...

and it seems i found my answer in 2001 camry solara EWD, relay box no. 2 is for DRLs, since my car don't have them then i have no such relay box. phew ...

i hope it helps.

[fenixus]

Originally Posted by ajkalian

The box is for the Day Time Running Lights. I removed the cap on the box, and sure enough, there it was printed right on the underside of the cover.

See, I told you I wasn't very good with the electrical stuff.

Now that I know what's in the box, I think I'll just disconnect the DRL. I always thought that was a stupid idea. What EPA dweeb came up with that idea anyway?

hehehe

feel free to pull the DRL relay out
i'm driving with no such box and happy hehe

the only thing which sounds "attractive to me" is the A/F HTR relay in that box, anybody knows what that is for ? what does the A/F stand for in it ?

does it have anything to do with the A/F ratio sensor heater or that is something completely else ...

if someone having no DLRs can confirm this box is deleted from factory, I would appreciate such confirmation. thanks for help guys.

[skuttduck]

Originally Posted by fenixus

if someone having no DLRs can confirm this box is deleted from factory, I would appreciate such confirmation. thanks for help guys.

Confirmed. I just checked under the hood on my Camry and I don't have that box.

[fenixus]

Originally Posted by skuttduck

Confirmed. I just checked under the hood on my Camry and I don't have that box.

thank you

at least now i know it's not been modded by some lunatic before me

[fenixus]

i checked the engine room relay box no.1 and in fact i do not the A/F HTR is blank (not wired). i guess that's a fuse for A/F HTR relay in engine room r/b no.2 (for DRLs that i don't have).

another question. what are the 2 "noise filters" in Instrument Panel J/B ?
they look like large black plastic blocks. should they be replaced from time to time or what is it actually ?

I'm going to replace all fuses (including the high power ones, type Female Maxi or FMX i think) in Instrument Panel (driver side, behind coin holder). they are old, so i i guess it's a good preventive maintenance, cheap things, easy to do.
A year ago, I replaced all fuses (except for the 100A alternator fusible link) in Engine Room r/b no.1, now doing Instrument Panel J/B.

[Chris Crash]

Replacing ALL fuses is a waste. I don't think they "age" or anything like that...they either work or they dont.