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

SouthArk370Z

Maybe I'm the one who is confused. What do you mean by "a resistor in line on the passenger side, and have the sensor connected"? If the sensor is connected, you shouldn't need a resistor.

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DeliriousClam

All I need to do is solder in a resistor to the side airbag connector and plug in the weight sensor and I should be fine correct? (and hopefully get the weight sensor to work.)

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DeliriousClam

I think we're both confused

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SouthArk370Z

I'm getting old. What's your excuse?

I guess I didn't see the part about a side air bag earlier. I thought you were trying to bypass the seat sensor with a resistor. Please explain again what you are trying to do (or point to a post).

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DeliriousClam

No I have other plans for the sensor. I got confused and assumed putting the resistor in line on the passenger's side airbag plug and plugging in the weight sensor screwed things up

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gomer_110

Passenger side is:
Resistor added to simulate missing airbag and
OCS "mat" removed from factory seat and reconnected

iirc, if the system was faulted at some point you have to go through a reset procedure (check the FSM). The system does NOT automatically clear an error.

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DeliriousClam

That much I know. I just got confused by the last few posts

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CJBinder

So I went and bought a multi meter. The lowest setting I can put it on for ohms is 200. I tested the resistors I have in place and was testing with and it shows .9 or .8. When I test against a new one it is 5.5 around.

So I am assuming the resistors I bought were crap since new ones are reading 5.5 and connected and used ones are at .9 or .8.

Does anyone have a valid link to quality resistors that are the right resistors?

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DeliriousClam

I just bought a pack of 50. I still need to test them but if they check out I'll mail you some

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gomer_110

How are you testing the resistors you have in place?

Using the terminals on the connector will give you odd readings that will cause you to think the resistors are bad. Had the same issue when I did mine a few years ago.

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CJBinder

First I already had my connectors done up and heat wrapped. I then put the leads on the exposed wire from resistor to heat wrapped. The reading was .8-.9. Granted I had already tried testing both connectors with resistors plugged in and the original weight sensor plugged into its connector. I also went thru the reset procedure. I also tried using the leads within the connector and same reading .8-.9 So maybe these blew?


I tested with just the resistor, new one out of package and put one lead on each side and was reading 5.5. How else do you test them?

I ordered some new ones. These were a bit more expensive as they were 4$ for 10 as last ones were like 4$ for 100.

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gomer_110

Testing just the resistor you did fine.

Problem is that once the resistor is soldered to the connector you will no longer get a proper reading due to the connector. There is something about the connector that makes it read as shorted (0 ohms). This in parallel with your resistor is causing you to read .8-.9 ohms.

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SouthArk370Z

What gomer_110 is trying to tell you is that you can't check the resistor in-circuit. You will need to disconnect one end of the resistor from the sensor circuit to get a good reading.

To pick a nit: It's not the connector that is the problem (unless you have a bad connector), it's what's hooked up to the connector (seat sensor).

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gomer_110

The seat sensor is an entirely separate item. It's NOT connected to the same harness as the airbag and therefore has no effect on the resistance reading.

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SouthArk370Z

ah. I''m getting two convos mixed up. Sorry about that.

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