DIY: [How-To:] Racing Seat airbag light fix

johnnydrama · 03-18-2018, 08:15 PM

Worked perfectly for me last week during my install. Thanks for the DIY!

Kaizoku · 03-26-2018, 07:27 AM

Quote:

Originally Posted by happytheman

Hey all, just wanted to let you all know that my '09 was diagnosed with an OCS issue, which causes the airbag light to constantly flash. I purchased an occupancy sensor bypass from Airbag360 and after a two minute swap and airbag light reset I was good to go.

Nissan 350z 370z Passenger Seat Occupancy Sensor OCCUPANT CLASSIFICATION SENSOR EMULATOR

so is this the expensive but easy solution to the weight sensor diy? and do you still need a resistor for the airbag with this?

SouthArk370Z · 03-26-2018, 08:26 AM

Quote:

Originally Posted by Kaizoku

so is this the expensive but easy solution to the weight sensor diy? and do you still need a resistor for the airbag with this?

The unit is (probably*) just a resistor that is "tuned" to the resistance of the seat sensor when it is occupied. The resistor values I've seen used in the DIYs on this site are to emulate an empty seat. I haven't looked at the FSM in a while but, IIRC, the un/occupied values are in the FSM.

*Couldn't find a schematic of the unit but it's replacing a resistive element.

Kaizoku · 03-26-2018, 01:43 PM

Quote:

Originally Posted by SouthArk370Z

The unit is (probably*) just a resistor that is "tuned" to the resistance of the seat sensor when it is occupied. The resistor values I've seen used in the DIYs on this site are to emulate an empty seat. I haven't looked at the FSM in a while but, IIRC, the un/occupied values are in the FSM.

*Couldn't find a schematic of the unit but it's replacing a resistive element.

Is there any disadvantage to always having the seat sensor occupied? That would just mean that in the case of an accident, the passenger air bags would deploy even with no passenger, correct?

SouthArk370Z · 03-26-2018, 08:01 PM

Quote:

Originally Posted by Kaizoku

Is there any disadvantage to always having the seat sensor occupied? That would just mean that in the case of an accident, the passenger air bags would deploy even with no passenger, correct?

It's been a while since I look at the details in the FSM (link in my sig) but IIRC, you are correct.

If I were using the vehicle on the track, I'd go with the unoccupied option (assuming no passenger). On the street, occupied (just in case there was a passenger). YMMV.

Djraunch · 03-26-2018, 10:36 PM

I’ve also had good success with the airbag 360 module. Only problem is passenger belt light is constantly illuminated unless seatbelt is clicked

Quote:

Originally Posted by happytheman

Hey all, just wanted to let you all know that my '09 was diagnosed with an OCS issue, which causes the airbag light to constantly flash. I purchased an occupancy sensor bypass from Airbag360 and after a two minute swap and airbag light reset I was good to go.

Nissan 350z 370z Passenger Seat Occupancy Sensor OCCUPANT CLASSIFICATION SENSOR EMULATOR

Kaizoku · 03-27-2018, 06:54 AM

Quote:

Originally Posted by Djraunch

I’ve also had good success with the airbag 360 module. Only problem is passenger belt light is constantly illuminated unless seatbelt is clicked

Couldn't you get around that with a resistor in the seat belt harness?

Djraunch · 03-27-2018, 10:14 AM

Maybe a more experienced member could answer but honestly I’m not sure. I just live with the light when I don’t have a passenger. The resistors in the airbag plug have functioned flawless for me with no light

Quote:

Originally Posted by Kaizoku

Couldn't you get around that with a resistor in the seat belt harness?

sirnixalot · 03-27-2018, 11:08 AM

do you still have the white plug from the seat belt plugged into the connector coming out the floor?

If so just disconnect it and the light should go away

Djraunch · 03-27-2018, 12:13 PM

Thanks for the suggestion! I didn’t know it was that easy. I originally connected it back up thinking it would throw an error if the harness wasn’t plugged in

Quote:

Originally Posted by sirnixalot

do you still have the white plug from the seat belt plugged into the connector coming out the floor?

If so just disconnect it and the light should go away

OTW Z-Boy · 05-27-2018, 09:10 PM

Anyone ever find out the part number for those yellow clips?

Gonna need a couple. Thanks

Sent from my iPhone using Tapatalk

hawknole · 06-13-2018, 06:55 PM

Just installed my racing seats with the resistor fix, airbag360 emulator then did the airbag light fix and good to go. Thanks all.

pedrojotajota · 11-26-2018, 09:31 AM

Good afternoon.

And I tried this with my 370z, I put 4.7ohm 1 / 2w resistors and the passenger presence sensor, the error does not appear for a while, but at the same time the airbag light flashes again.

When making a diagnosis with ecutek, I only get failure in the passenger airbag.

I have the original belt support installed only on the passenger, the driver does not have the OEM anchor.

Do you know what can happen?

dts3 · 11-26-2018, 10:25 AM

Now what would be really slick would be to put the resistor on a switch into the seat sensor circuit. You could enable/disable the airbag at will. You could even drop the switch into the blank 3 (assuming you have the blanks to begin with)

pedrojotajota · 12-03-2018, 04:58 AM

Quote:

Originally Posted by pedrojotajota

Good afternoon.

And I tried this with my 370z, I put 4.7ohm 1 / 2w resistors and the passenger presence sensor, the error does not appear for a while, but at the same time the airbag light flashes again.

When making a diagnosis with ecutek, I only get failure in the passenger airbag.

I have the original belt support installed only on the passenger, the driver does not have the OEM anchor.

Do you know what can happen?

Can somebody help me?

03-18-2018, 08:15 PM	#211 (permalink)
johnnydrama Track Member Join Date: Feb 2010 Location: Bloomington, IN Age: 40 Posts: 606 Drives: Nismo & FPace SVR Rep Power: 2232	Worked perfectly for me last week during my install. Thanks for the DIY! __________________ 358WHP/271WTQ BUILD THREAD

03-27-2018, 11:08 AM	#219 (permalink)
sirnixalot Track Member Join Date: May 2017 Location: Cayman Islands Posts: 685 Drives: 2010 370Z Rep Power: 57455	do you still have the white plug from the seat belt plugged into the connector coming out the floor? If so just disconnect it and the light should go away Djraunch likes this. __________________ 2010 Sport - LS3 swap loading 2012 Frontier - BTWTuning VK56DE swap

05-27-2018, 09:10 PM	#221 (permalink)
OTW Z-Boy A True Z Fanatic Join Date: Mar 2012 Location: Temecula Ca Posts: 1,225 Drives: 14 Nismo 370z #495 Rep Power: 751	Anyone ever find out the part number for those yellow clips? Gonna need a couple. Thanks Sent from my iPhone using Tapatalk __________________ 2014: Nismo 370z #495 Magnetic Black - Stillen Gen3 CAI \| SPL F/R Camber Arms \| HKS Hypermax IV \| JDM Rear Fog Light \|GT-R Push Start Button \| Z1 2 Piece D/S \| Illuminated Kicks \| Tommykaira \| Work VS-XX BKB Step Lip +23/+13 19" 9.5/11 \| Fast Intentions RHFC TDX CBE 12" CF \| EcuTek

06-13-2018, 06:55 PM	#222 (permalink)
hawknole Base Member Join Date: Oct 2016 Location: Blue Mountains Posts: 5 Drives: 2009 370Z Rep Power: 9	Just installed my racing seats with the resistor fix, airbag360 emulator then did the airbag light fix and good to go. Thanks all. SouthArk370Z likes this.

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11-26-2018, 09:31 AM	#223 (permalink)
pedrojotajota Base Member Join Date: Apr 2017 Location: Spain Posts: 6 Drives: Nissan 370z 331cv Rep Power: 9	Good afternoon. And I tried this with my 370z, I put 4.7ohm 1 / 2w resistors and the passenger presence sensor, the error does not appear for a while, but at the same time the airbag light flashes again. When making a diagnosis with ecutek, I only get failure in the passenger airbag. I have the original belt support installed only on the passenger, the driver does not have the OEM anchor. Do you know what can happen?

11-26-2018, 10:25 AM	#224 (permalink)
dts3 Track Member Join Date: May 2018 Location: Farmington Hills, MI Posts: 599 Drives: 08 Expedition Rep Power: 6766	Now what would be really slick would be to put the resistor on a switch into the seat sensor circuit. You could enable/disable the airbag at will. You could even drop the switch into the blank 3 (assuming you have the blanks to begin with)