[IGoomba57]

I dug through the forum trying to find a solution for my version of not working auto seat belts and I haven’t found one yet.

I have yet to get my copy of the FSM that will help me with the wiring but I thought I’d try diagnosis before then.

Here’s my version of it:
When I got the car both of the auto seatbelts were all the way back in the doors closed position and didn’t move under any circumstances.

When manually rolled forward the motor and turned on the ignition, the seatbelt shot back towards the back and stopped on the limit switch. That is on both sides and with the doors open or closed.

This tells me that my rear limit switches are good and my motors are somewhat working.

I have no clue if previous owners modified wiring at all and I haven’t pulled the door panels yet.

Let me know if any seatbelt pros out there have any idea where I should go next.

 

[93celicaconv]

It is very possible a previous owner altered the wiring of the front seat belt re-tractors to essentially disable them. You should wait until you get your FSM and read up on those units, and review the wiring diagram associated with them. Then start by removing the B-pillar trim piece on one side to see if there was a PO modification made.

I'm assuming your are interested in pursuing this because you want those seat belt retractors fully functional again?

Many folks who had these cars did not like those retractors at all.

 

[IGoomba57]

It is very possible a previous owner altered the wiring of the front seat belt re-tractors to essentially disable them. You should wait until you get your FSM and read up on those units, and review the wiring diagram associated with them. Then start by removing the B-pillar trim piece on one side to see if there was a PO modification made.

I'm assuming your are interested in pursuing this because you want those seat belt retractors fully functional again?

Many folks who had these cars did not like those retractors at all.

I didn’t see any noticeable modifications under the b pillar or center console. I assume if any modifications were done with the symptoms I’m having, it will be in the switch in the door.

I bought the car out of nostalgia and I remember the seatbelts being an annoyance when I was younger but I want them functioning for nostalgia as well as safety

 

[93celicaconv]

Maybe this section will be of help to you (attached).

 

[IGoomba57]

Maybe this section will be of help to you (attached).

Thanks, that helps a ton, I can start on it tomorrow instead of Monday.

 

[IGoomba57]

I spent the majority of today tinkering with the seatbelt and after testing circuits, no wires seemed to be broken but my door latch switch was showing always closed.
I pulled it out and the plunger was snapped off, I disassembled it and attempted repair but lost the springs while glueing the plunger back together.
Out of frustration and lack of new springs I rewired the seatbelt to a toggle switch in the center console and it works great now on the drivers side.

 

[93celicaconv]

You probably have a similar problem on the passenger front door then too. Those door courtesy light switches failed often, mostly with the contacts corroding and no longer closing (indicating door open when switch contacts close).

I have a salvage yard run for some errands for folks in this forum coming up - there is a pretty nice 1991 Camry out in the yard that I am harvesting some parts for. Would you like me to grab a pair of the door courtesy light switches for you?

I believe the front door courtesy light switch part number is Toyota 84231-32070. The rear doors have a different part number (84231-12070), so I would think they are likely not interchangeable, but I see that Toyota superseded 84231-32070 with 84231-12070. That front door courtesy light switch part number 84231-32070 was used on all 1989-1991 Camry's, 1993-1997 Land Cruiser, and 1990-1991 Lexus ES250. The rear door courtesy light switch part number 84231-12070 was used on the same vehicles as the front door courtesy light switch part number 84231-32070 plus the 1989-1993 Supra.

 

[white90dx]

Those door courtesy light switches failed often, mostly with the contacts corroding and no longer closing (indicating door open when switch contacts close).

The door courtesy light switches do not operate the power seatbelts. There is a secondary latch sensor in each front doors for that function, which is not used for the interior lights or other functions.

If things really go sideways, you can just unplug the motor, roll the belt all the way back and manually put it over your head each time you get in/out. It can all be accessed by the little door in the lower b-pillar.

-Charlie

 

[1990Toyota]

The switch is what I found to always go bad on these beasts.


glad you got it working!

I loved the auto belts myself.

 

[IGoomba57]

You probably have a similar problem on the passenger front door then too. Those door courtesy light switches failed often, mostly with the contacts corroding and no longer closing (indicating door open when switch contacts close).

I have a salvage yard run for some errands for folks in this forum coming up - there is a pretty nice 1991 Camry out in the yard that I am harvesting some parts for. Would you like me to grab a pair of the door courtesy light switches for you?

I believe the front door courtesy light switch part number is Toyota 84231-32070. The rear doors have a different part number (84231-12070), so I would think they are likely not interchangeable, but I see that Toyota superseded 84231-32070 with 84231-12070. That front door courtesy light switch part number 84231-32070 was used on all 1989-1991 Camry's, 1993-1997 Land Cruiser, and 1990-1991 Lexus ES250. The rear door courtesy light switch part number 84231-12070 was used on the same vehicles as the front door courtesy light switch part number 84231-32070 plus the 1989-1993 Supra.

As White90dx said, those don’t operate the belts but I might take you up on that after I get her running because my driver door courtesy button is broken too.

 

[1990Toyota]

As White90dx said, those don’t operate the belts but I might take you up on that after I get her running because my driver door courtesy button is broken too.

it could also be something in the ignition as they only powered to "lock" when the ignition was turned on. Thats beyond anything I had to repair though. the ones I did were only bad because of that switch.

Grab as much parts as you can. These things are getting rare

 

[93celicaconv]

Is this the switch that is broken for the seat belt retractors (high-lighted)? If so, can you take a clear picture of where they are on the car?

 

[IGoomba57]

Is this the switch that is broken for the seat belt retractors (high-lighted)? If so, can you take a clear picture of where they are on the car?
View attachment 416542

I should’ve taken a couple more pictures before I put the latch back in. I can take a picture of the switch later though.
It is internal to the door latch itself so you have to pull the door panel and all the linkages and it’s right above the latch inside a housing. Just a little plastic piece with a wiring pigtail. And a huge pain to pull out of the car.

Approximately circled here. Doesn’t seem to have a part number even though there are instructions to replace if faulty.

 

[93celicaconv]

Is this what that switch looks like? It's the same part number that was highlighted in the diagram I attached to my previous post.

• 1 New OE Toyota 84931-39015 Power Door Lock Control Switch 4Runner Camry Corolla | eBay

If so, maybe getting a new OEM switch at the cost advertised isn't a bad way to go. Toyota EPIC says 2 are used, which makes sense (both the LF & RF doors). And this eBay seller has 2 of them to sell.

 

[1990Toyota]

^ that looks like the piece.



id grab that since you can't get those new anymore...and at a pretty nice price too.



the more i think about it though, i dont think that is the issue since both seem would have to have failed at the same time. Possible... gut eeling says no. though.



Verify the part, buy it, try it, if it don't work throw it on the spare parts shelf

 

[93celicaconv]

I spent the majority of today tinkering with the seatbelt and after testing circuits, no wires seemed to be broken but my door latch switch was showing always closed.
I pulled it out and the plunger was snapped off, I disassembled it and attempted repair but lost the springs while glueing the plunger back together.
Out of frustration and lack of new springs I rewired the seatbelt to a toggle switch in the center console and it works great now on the drivers side.

He was able to get the driver side working by making this change. Passenger side still not working. Would seem to be the switch on the driver side that is now being discussed.

The eBay seller has 2 of them, might want to check if it also appears the passenger side is always showing closed even when the door is not closed, and if that switch appears to be broken. You might need both. Kind of a pricey fix, but like 1990Toyota says, you won't come by these switches very often in the future.

 

[IGoomba57]

That is not the switch, I did see that one in the assembly though, couldn’t tell what it did.
I searched for a while online and couldn’t find the one I needed anywhere, still pissed about the springs, I should’ve been more careful.

Im going to convert both sides of mine to manual with toggle switches, I may eventually pull the passenger switch out for parts to sell.

 

[1990Toyota]

That is not the switch, I did see that one in the assembly though, couldn’t tell what it did.
I searched for a while online and couldn’t find the one I needed anywhere, still pissed about the springs, I should’ve been more careful.

Im going to convert both sides of mine to manual with toggle switches, I may eventually pull the passenger switch out for parts to sell.

oh, then you must be looking for that "ugly" hard to reach one. The one that seems to just melt away into the door latch assembly itself. the one without that rubber boot part?

89 90 91 TOYOTA CAMRY Right Front Door LOCK LATCH OEM | eBay

 

[IGoomba57]

oh, then you must be looking for that "ugly" hard to reach one. The one that seems to just melt away into the door latch assembly itself. the one without that rubber boot part?

89 90 91 TOYOTA CAMRY Right Front Door LOCK LATCH OEM | eBay


View attachment 416585

Yup, that’s the one, it’s awful

 

[1990Toyota]

Bleh.

If you're lucky you could just find some used door latches like that one. Thats what I did as I recall. i don't recall if they were available by themselves... that "boot one" was for the door lock actuator now that I think about it.


Although nice to have it working properly, toggle switches sounds nice though compared to going in the door.