18 replies to this topic

[Nev]

I have fitted harnesses and a harness bar in my car now, removed the old seatbelts (thus disconnecting the little wire that they were attached to) and the annoying airbag light is staying on permanently now ( Presumably this is some sort of safety thing. What are my options to stop the light please?

[A13X]

I have fitted harnesses and a harness bar in my car now, removed the old seatbelts (thus disconnecting the little wire that they were attached to) and the annoying airbag light is staying on permanently now (

Presumably this is some sort of safety thing. What are my options to stop the light please?

To remove it permantly you will either have to refit the standard belt and take it to a vxl garage with a tech2 and reset the ecu
Or solder a resistor inbertween the connection and again get a tech2 to reset

The personal obd unit you can get off ebay wont be able to clear the airbag fault code

[techieboy]

You'll need to fit a resistor to the seat belt pre-tensioner circuit to fool the car into thinking they are still there and operational.

[John Faulkner]

You'll need to fit a resistor to the seat belt pre-tensioner circuit to fool the car into thinking they are still there and operational.

Anyone know what size resistor?

cheers

john

[Nev]

Is there any info on what ohm resistor I'd need in a wiring diagram somewhere please ?

[Lps]

Mine still has both fitted (belts & harnesses) i find day to day driving in harnesses can be a PITA so glad The Knobs left both sets in!

[slindborg]

a 1mm drill bit, driven into the dash face and into the LED would do the trick too

[Lps]

a 1mm drill bit, driven into the dash face and into the LED would do the trick too

bit of gaffa tape over the light also works, or my favourite take the bulb out!

[Nev]

Thankyou for your inspired input chaps

[Dynamo]

I've got the same issue as you Nev. Having removed the original seatbelts and the airbag the airbag warning light came on. At the moment I have a piece of silver tape over the warning light. I believe you need to: - fit a resistor in the steering wheel into the airbag socket...to fool the system into thinking the airbag is present. I have done this, but the light remains on if you've removed the original seat belts. - fit resistors to the yellow seatbelt plugs behind the seats. (one resistor on each side) - get someone with a vauxhall computer / tech 2 to reset the airbag warning light once that is done. I can't remember what ohm rating of resistor you need, but when I looked into it, I found the required rating on this forum, and bought quite a few resistors off ebay myself for a couple of quid. I can send you a few if you want some - just send me a PM. Talking of lights on the dash, the problem for me now is when I go round corners the handbrake warning light comes on. It's because the float switch in the brake fluid container trips when the brake fluid flies to one side of the container. it only really happens on track when you are cornering hard. I suppose I could fill it right up above the max level...but has anyone else got a solution to this? Walshy told me it just means I'm cornering hard enough ... but it's quite distracting when you're driving hard since it's hard to see which warning light is coming on with a quick glance.

Edited by Dynamo, 02 March 2009 - 09:42 PM.

[Anarchy]

You'll need to fit a resistor to the seat belt pre-tensioner circuit to fool the car into thinking they are still there and operational.

Will the airbag still work then? Or just turn the warning off.

[John Faulkner]

You'll need to fit a resistor to the seat belt pre-tensioner circuit to fool the car into thinking they are still there and operational.

Will the airbag still work then? Or just turn the warning off.

my understanding is this:

the resistor is to fool the airbag controll module into thinking the seat belts (and their pre-tensioners) are still in place, so the drivers airbag will still work fine.

john

[john_s]

You'll need to fit a resistor to the seat belt pre-tensioner circuit to fool the car into thinking they are still there and operational.

Will the airbag still work then? Or just turn the warning off.

The airbag should still work fine, as the controller will believe the pretensioners are present and correct. I *think* the resistor you need is 7 ohms, but that's from memory so isn't the definitive answer. If you've got a local Maplin, the resistors will just be something like a few pence each.

I need to sort it out on my car, but CBA keeps getting in the way.

[Dynamo]

I've taken my airbag out since with harnesses I don't think it's going to be much use.

[Nev]

I've just measured the resistance of the seatbelt unit - It's 1.9 Ohm, so Im off to maplin for a couple of resistors to fit accross the terminals in the yellow plug. Then hopefully once I reset the CPU by pulling the fuse out the airbag light should go out.

[A13X]

Nev, no matter how you try to reset the ecu it wont go out. Can ONLY be done with a Tech2.

[Muttley]

2.7 ohm

[Nev]

Well, I have bought a couple of 1 Ohm (3 Watt) resistors, just insterted one into each of the terminals of the little yellow plugs what used to feed intot the seatbelt rollers, started the car up and hey presto the airbag light doesnt show now. I didnt need to pull any fuses out or do any sort of ECU reset. Happy Bunny.

Edited by Nev, 07 March 2009 - 02:13 PM.

[Marco Polo]

Here is some info : Checking Procedure Body System, Airbag-2004-2003-2002-2001-Speedster,VX220-Opel-Vauxhall B-01 - DIAGNOSTIC TROUBLE CODE 31 - Driver Airbag Squib Circuit High Resistance
Resistance of driver squib circuit is greater than 5.4 Ohm
Above condition must be fulfilled for at least 1 s . Effect:
The system telltale is switched on. Concerned Terminals: 1,2 Refer to test step :C-04 32 - Driver Airbag Squib Circuit Low Resistance
Resistance of driver squib circuit is less than 1.5 Ohm
Above condition must be fulfilled for at least 1 s . Effect:
The system telltale is switched on. Concerned Terminals: 1,2 Refer to test step :C-05 35 - Driver Pretensioner Circuit High Resistance
Resistance of pretensioner circuit is greater than 4.9 Ohm
Above condition must be fulfilled for at least 1 s . Effect:
The system telltale is switched on. Concerned Terminals: 8,9 Refer to test step :C-05 36 - Driver Pretensioner Circuit Low Resistance
Resistance of pretensioner circuit is less than 0.9 Ohm
Above condition must be fulfilled for at least 1 s . Effect:
The system telltale is switched on. Concerned Terminals: 8,9 Refer to test step :C-06 37 - Passenger Pretensioner Circuit High Resistance
Resistance of pretensioner circuit is greater than 4.9 Ohm
Above condition must be fulfilled for at least 1 s . Effect:
The system telltale is switched on. Concerned Terminals: 15,45 Refer to test step :C-06 38 - Passenger Pretensioner Circuit Low Resistance
Resistance of pretensioner circuit is less than 0.9 Ohm
Above condition must be fulfilled for at least 1 s . Effect:
The system telltale is switched on. Concerned Terminals: 15,45