Supplemental Restraint Code 31

[hobbes]

Supplemental Restraint Code 31: Solved

While my family had my cruiser the battery died. When it was replaced (with a leaky NAPA battery) the airbag light came on with a code of 31. Has anyone seen these events tied together before? I have not tried to reset it yet, though I did disconnect the battery for 1 minute to see if that would make it go away.

 

[RavenTai]

That code is a bad SRS sensor/controller, it is a sealed unit nothing anyone should fiddle with inside, make sure it is getting proper power per the FSM, if it is then all you can do is replace it, I would look for a used one, they are self diagnosing and do not go bad often, someone here had a bad controller not long ago, replacing it fixed the problem.

https://forum.ih8mud.com/showthread.php?t=111194

 

[hobbes]

I finally got enough time today to troubleshoot this futher. I was able to get the code to clear using the grounding method spelled out in the factory manual. I'm not sure why the failing battery caused it to set.

 

[VivaToy]

Just wanted to revive this old thread in case anyone has a SRS / Airbag Code 31 in the future.

I did. I cleared the code again and again, but it would come back within a couple seconds. After replacing the SRS / Airbag sensor module and clearing the code, it went away for good.

Very Quick Description of removal:
The control module is located right beneath the dash. You will need to remove both center console pieces and you'll see it tucked under the dash with a yellow plug (Yellow plugs are only for Airbag-related things).
Before you unplug the SRS / Airbag sensor module, UNPLUG the Battery for at 15 minutes prior. If you don't do this, the airbag could deploy. (I think the actual time is about 5 minutes, but I'd rather be safe.)
Four Torx screws [size 40] mount it. They'll be tight.
Unplug.
And reverse order.

Hope this helps someone in the future,

 

[Saito]

Had this EXACT thing happen. Corrosion on the battery and it didn’t want to start. Fixed that and now a code 31. Went that far in the FSM, but next I’ll try the grounding/reset before putting a new sensor in. Anyone have a pic of that sensor ? ? That’s what I’m really searching for here.

 

[VivaToy]

I don't have a picture handy, but when you remove the center console, it's right there beneath the dash. Has a red and yellow sticker on it. Your problem can probably be fixed with a reset. If not, maybe contact @slow95z

 

[Drift Monkey]

Just wanted to revive this old thread in case anyone has a SRS / Airbag Code 31 in the future.

I did. I cleared the code again and again, but it would come back within a couple seconds. After replacing the SRS / Airbag sensor module and clearing the code, it went away for good.

Very Quick Description of removal:
The control module is located right beneath the dash. You will need to remove both center console pieces and you'll see it tucked under the dash with a yellow plug (Yellow plugs are only for Airbag-related things).
Before you unplug the SRS / Airbag sensor module, UNPLUG the Battery for at 15 minutes prior. If you don't do this, the airbag could deploy. (I think the actual time is about 5 minutes, but I'd rather be safe.)
Four Torx screws [size 40] mount it. They'll be tight.
Unplug.
And reverse order.

Hope this helps someone in the future,

I’m getting the light as well. I’ve successfully done the reset procedure, but when I turn it off and take the key out, it’s over - light comes right back on when I put the key back in and turn it back on the “On” position.

Is 89170-60010 what I’m looking for?

Edit: how do I read the codes for this (eg code 31)? My ultragauge doesn’t pick up anything.

Edit 2: I ran the DTC diagnostic and it’s indeed the Airbag sensor assembly I linked above. I went ahead and ordered it - hoping for the best!

 

[jblatl]

Could you share the grounding reset process?
I have the 31 code that started today….