How to remove a connector block from the engine room fuse box (1 Viewer)

[SLC470]

Hey all,

I have a bad connection at terminal 1B pin 60. It's a female terminal that I think is the issue. (Good continuity from fuse to male terminal 1B-60 and good continuity from female terminal to first junction block [Ia1 at left kick panel] but when the fuse box connectors are in place there is intermittent continuity)

Does anyone know how to get one of these blocks of connectors out of the larger assay so you can open the terminal retainer and release the individual terminal?

Any help appreciated!

 

[jerryb]

if, and I don't know exactly, the bottom white plastic retainer that the screw goes through comes off, see if they get released out the bottom. Probably they don't release and come up through the top. They might in fact be a one piece part with all the 12 pin connectors already set in the big square holder, meant to be a one piece 48 pin or 44 pin that comes complete if you order that harness.
there are no 3 row 12 position square females like that, or the 3 row 9 position for the 1a. If it's clear too pull on a wire from the bottom they look like 2.3 size wise and are easy to get out, without glasses. Just seems the bottom plastic tray sort of part needs to separate.

 

[CorporalClegg]

Usually you can disassemble the larger block into the individual connectors then depin the connector line normal. It looks from the pic there's a retaining tab for each of the 6 separate connectors.

 

[SLC470]

Hey,

Thanks for your feedback!

Yes, the plastic back plate comes off easily. I see two plastic tabs up front but releasing them didn't seem to free the individual block. I wanted to make sure there was nothing else before applying more force. Breaking this thing would be catastrophic!

The individual block does move backwards, correct? Meaning away from the male terminals.

 

[SLC470]

Just a little stuck! Thanks for the confidence fellas

 

[SLC470]

Well,

It's been an emotional rollercoaster with this thing today. Good connection with the single terminal, good connection with the small block containing the trouble terminal, no continuity after putting it all back together with the 1B large block of terminals.

Even worse after tightening everything back to for a test several systems were throwing codes. After pushing around on the small terminal block (battery disconnected) and trying again codes went away. After jamming a plastic fork tine next to this small terminal block everything is working again.

Anybody able to find the part number for this small block?? I can't find it in the FSM or the EWD I have access to online. I can't even be sure if it is the small block or the housing of the large block that is the issue. Is there a more reliable solution to stabilize the small block?

 

[saucebox]

Well,

It's been an emotional rollercoaster with this thing today. Good connection with the single terminal, good connection with the small block containing the trouble terminal, no continuity after putting it all back together with the 1B large block of terminals.

Even worse after tightening everything back to for a test several systems were throwing codes. After pushing around on the small terminal block (battery disconnected) and trying again codes went away. After jamming a plastic fork tine next to this small terminal block everything is working again.

Anybody able to find the part number for this small block?? I can't find it in the FSM or the EWD I have access to online. I can't even be sure if it is the small block or the housing of the large block that is the issue. Is there a more reliable solution to stabilize the small block?

Does it have any set of digits on it? If it's like other terminals/connectors, it should have a series of 5 numbers somewhere (usually very tiny). The corresponding Toyota part number will begin 90980, and end with those five. So 90980-xxxxx should be your part number.

 

[SLC470]

@saucebox really good to know!

I decided to try a simple fix and see where that gets me. Didn't seem worth ordering a part if I couldn't tell which was malfunctioning. Rolled up some electric tape, jammed it in the loose small connector block, and then taped over the end of it to keep it in place.

While I was in there I put in a backup bypass if just one of the terminals is poorly connected again. A 16 gauge "oh s&#% handle"

 

[jerryb]

did you a secondary lock now that you had one of the housings in your hands?
I loked for the part numbers for the female housing and for the larger plastic assembly yesterday, I couldn't find it either in the FSM or wiring book, image searching.
Spraying deoxit might have helped, also checking all the male pins of the fuse box, although it's not too easy to mess up big ones like that.

when toyota has a smaller gauge wire, like 22 in a 2.3 terminal it moves around more than a bigger 18-16 wire. When it's connected though to it's male you can't notice this.
Your issue seems weird, it's not like someone is disconnecting and reconnecting that thing all the time wearing them down.
I can't think of anything I would have done, other than maybe put a new female terminal on that offending wire.
if you need some or want a link let me know.
maybe a thin spacer to keep the smaller 9 or 12 pin housing pushed higher up towards the male pins, fuse box.

 

[SLC470]

did you a secondary lock now that you had one of the housings in your hands?
I loked for the part numbers for the female housing and for the larger plastic assembly yesterday, I couldn't find it either in the FSM or wiring book, image searching.
Spraying deoxit might have helped, also checking all the male pins of the fuse box, although it's not too easy to mess up big ones like that.

when toyota has a smaller gauge wire, like 22 in a 2.3 terminal it moves around more than a bigger 18-16 wire. When it's connected though to it's male you can't notice this.
Your issue seems weird, it's not like someone is disconnecting and reconnecting that thing all the time wearing them down.
I can't think of anything I would have done, other than maybe put a new female terminal on that offending wire.
if you need some or want a link let me know.
maybe a thin spacer to keep the smaller 9 or 12 pin housing pushed higher up towards the male pins, fuse box.

Hey, thanks for the input.

It's about a 18 or 20 gauge, definitely moves around but nothing crazy. I thought about replacing the female terminal and even got the part. However, when connecting the individual terminal or small block everything worked great so that didn't seem to be necessary (yet). Definitely sprayed everything with terminal cleaner. Male pin looked good with good continuity and I tried to move it around but it would not budge.

If you have the link to those spacers that would be awesome. Good thing to keep in my back pocket. Everything works great now... But it's most likely to return after getting bumped around if it does at all.