Airbag light with Scuderia seats in standard F430

am I the only one who is completely confused then? so 216005 is for no airbag disable switch, and no COPD

you have no airbag switch, you disconnected the COPD connector, it should be ok with it? what is causing a light?

 

So, the current status is:

Module: 216005 (brand new, version without disable switch, non COPD)
COPD: disconnected
Disable switch: disconnected
Seat belt pre-pretensioners: connected
Drivers airbag: connected
Passenger airbag: connected
Light: solid on. No longer flashing repeatedly

I think that this is success. Generally a flashing light indicates a serious system problem, which you no longer appear to have with the switch disconnected, but when an airbag light is triggered it is permanent until erased with diagnostics.

I think you need to clear the airbag codes and check. I'd say it's looking like you will be OK if the codes are cleared and the switch remains disconnected.

This answers why the Aus cars that run that module have a blanking cover but the switch is left in place - its obviously required by hardware within the module irrespective of the software type (switch or non-switch).

 

the seat belts were not connected. and neither was the Copd

 

Oh, OK. If something isn't connected that should be then you will have a code.

I think this is at the point of needing diagnostics because we don't know the current stored fault state of the module, and generally SRS codes are persistent until cleared.

 

Well I thought I was supposed to Check all this without the Cpod connected Because that's what we want it disconnected with no light

 

COPD is fine - your module doesn't expect one - it's US market specific feature and module 216005 is used elsewhere in the world without one, however every airbag module will expect the seat belts and throw a code without them in.

 

Well to clarify the seat belts are there they're just not connected to The stalk. in other words if someone is sitting in the car they don't have their seatbelt on

 

Do you have a launch? I'm pretty sure that it does airbags on the F430. I'm sure that I've cleared codes on my car.

 

Ah! That's perfectly fine. I was mentioning the electrical connection between the seat belt reel and the airbag system. I don't know what state your project/car was in so was clarifying that they were connected.

If you haven't disconnected the seat belt electronics then my post #102 stands.

 

OK yes seat belt electronics were never disconnected.

 

I was recently given a recaro seat occupancy sensor and got curious. It also has 3 wire connector. Weirdly it comes with another connector to plug into with flying leads but only 2 wires. I measured the resistance. With no load, 0 ohm. With me sitting on it it’s 20.8 ohm. I don’t have my stock seat with me as it is stored in storage. When I have time I’ll dig it out and measure what’s the factory one is and see if this can be made to work. Maybe @Qavion who is much more electrical savvy can make something out of this.

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there should a resistance value given w/o having been seated.

we went through this about 4-5 months back for another member

Ian should be able to bring that forward again

20.8 Ohms seems like a very high value but could be for Recaro

Most important is to know is what the resistance value of the original seat as the system will look to that value only and not what Recaro presents

 

I found this from last September when it was discussed. It is all I have.

Unfortunately my notes do not have the FC link

"9/30/2022

Wires under the seat are – red/brown, black and yellow

Black is ground

See connector Z071 on Ian’s drawing. It is called Passenger Presence Sensor

Ian –

I don't know how complex the internals of the sensor are. There may just be a simple potentiometer arrangement:

See the Seat Sensor.GIF

Brown/red is power, black is earth and the yellow wire will be the output signal.

You would need to know the resistance across the brown/red wire and the black wire, the resistance across the brown/red wire and the yellow wire and the resistance across the yellow and black wire to figure out if the circuit was set up as above. If it was like the circuit above, you would probably need to put the resistor across the brown/red and the yellow wire.

Addition –

resistance measurement is being taken across the "red" and the black wires (across the seat sensor with the plug not connected).

You would get the value across the entire length of potentiometer. If the sensor internals are as I've shown, this resistance should not vary with someone sitting in the seat.


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I guess it doesn't matter how many wires are on it, as long as there is a resistance change when someone sits on the seat. The ECU would need to be matched to the circuit of course.

e.g. you can remove the earth wire, but still get a reading on the other two wires.

Modifying my earlier diagram (and using Andrie's values):

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Ignore the wire colours (and pin locations on the plug).

 

why even use this seat sensor?

best to bypass the system with a resistor.

The oem resistance value is then important to determine

Good work on the drawing, Ian.

 

I had no luck with the resistor. I had no choice but to buy a copd sensor over $400, to install in the seat. I'm kinda glad I did it now because it's oem ans working as it should

 

all it takes is a simple resistance measurement and the installation of a resistor to bypass the sensor.

What a shame you had to spend $400 Lorenzo.

 

Yea but it worked out better in the end.

 

understand

where is the oem sensor- still in the seat?

 

yep. it's under the leather

 

OK

I see a P-51 photo in the background!

 

I suppose it would save on repair costs. No new passenger airbag or dash leather replacement required.

Isn't there a child safety issue, also? Isn't the sensor detecting a particular weight rather than zero weight/adult weight.

 

it does not matter to me

both airbags are coming out. I have no need for them.

I do not know about weight sensing but in any case the bags are more dangerous than valuable for me.

 

Do you have the Part number to the CPOD sensor? This is probably what I have to do too.

 

let me try to find it