57 replies to this topic

[JimmyJamJerusalem]

Ok so I've removed both the abs and airbag systems in my car.

The lights annoy me so I'm looking to defeat them.... I do not want to remove the bulbs or disable the light completely just in case I ever put my car back to road spec (kind of) and look for an MOT. I believe all dash lights have to illuminate when ignition turned on, then they have to go out no....?

So the ABS light and the airbag light stay on.

OK so on the following electrical diagram --

The airbag is connection H1 - .4 (black and violet)
The ABS is connection H1 - .5 (black and yellow)
The Coolant level is H1 - .69 (green and white)

Each control an LED on the dash.



So if I cut the cables and wire the secondary ends from the signal cables of the airbag and ABS and splice them into the signal wire of the coolant level switch I'm assuming I will have three LED's which now operate simultaneously with the coolant being the actual signal which operates them no....?

Can anyone envisage any issue doing this? Don't want to short anything out and kill my stack!

modified wiring

[FLD]

If you dont want to remove the bulbs in case you ever put it back to road spec why not just take them out and put them somewhere safe. Plug them back in when you revert to road spec....whatever that is!

[JimmyJamJerusalem]

If you dont want to remove the bulbs in case you ever put it back to road spec why not just take them out and put them somewhere safe. Plug them back in when you revert to road spec....whatever that is!

The problem is that the bulbs are constantly illuminated therfore an mot failure. Bulbs missing is also an MOT failure. I need bulbs to light up with ignition then sod off

[The Batman]

Just find a friendly mot man

[JimmyJamJerusalem]

The lights still bug me so I'd rather find a fix. Joe you're meant to be a spark, talk to me.... lol

[vocky]

it's not as simple as you think, if you 'short' the airbag light signal wire to a negative (-) the light sill stay off until you disconnect the battery

[Kieran McC]

I have just removed the air bag and the squib,I put a resistor accross the socket terminals for the air bag it has deleted the light ok

[JimmyJamJerusalem]

it's not as simple as you think, if you 'short' the airbag light signal wire to a negative (-) the light sill stay off until you disconnect the battery

In the second diagram though I'm talking about 'slaving' the abs and airbag light onto the signal wire for the coolant level. Worried it may cause an issue I've not considered.....

[s-express]

i painted over the led for the airbag light (they are not removable) which worked ok, but the 1.8ohm resistor worked better. (get em on ebay with fuse in line).

[The Batman]

The lights still bug me so I'd rather find a fix. Joe you're meant to be a spark, talk to me.... lol

Aren't you an lectrical engineer?!

[JimmyJamJerusalem]

The lights still bug me so I'd rather find a fix. Joe you're meant to be a spark, talk to me.... lol

Aren't you an lectrical engineer?!

Yeah, which is why I want to talk about the potential solution I've come up with but nobody will comment on it

[JimmyJamJerusalem]

I have just removed the air bag and the squib,I put a resistor accross the socket terminals for the air bag it has deleted the light ok

Interesting, but I've removed the airbag ecu also so not sure that terminal is connected to anything now..... Will look into this though

[JimmyJamJerusalem]

I have just removed the air bag and the squib,I put a resistor accross the socket terminals for the air bag it has deleted the light ok

Yeah, you connected a resister across the two red and blue cables to the squib, then I guess you programmed the pretensioners out in OPCOM...? Not really an option for me yet as hte ecu is out but I may re-instate it if I'm missing the signal completely now.....

[GeorgeBC]

Just cut the feed to the led so it never lights. If you want to put it back on the road just reconect it. I cant see why your first idea wouldnt work but then ive not tried and vocky knows the system better.

[JimmyJamJerusalem]

The current condition of the car is that the error lights are on all the time as the systems are gone (an mot failure). Disabling the lights then re-establishing this condition for an mot at a later date is no good as it's still a failure. I'm not going to refit the abs or airbag, just looking to maybe put the car on the road one day as it is. They have to light up on ignition (lamp test) then go away whilst car idles. I can't see why modding the circuit wouldn't work as there's plenty of wattage either as I'm not looking to short it to ground like Vocky mentioned I'm looking to slave it off another output but I'm paranoid about frying the stack completely..... Which spring rates did you go with in the end George? What's yours like on the road?

[Zoobeef]

Use a couple of these? Ignition live to them then they close the circuit to the lamp. Then open the circuit after however long your set it. Means you won't have all 3 going off at exactly the same time http://item.mobilewe...Id=320852799879

[JimmyJamJerusalem]

Use a couple of these? Ignition live to them then they close the circuit to the lamp. Then open the circuit after however long your set it.
Means you won't have all 3 going off at exactly the same time

http://item.mobilewe...Id=320852799879

Too much weight

They'd work, certainly less risky and would avoid the embarassing moment when my coolant runs empty and the dash lights up like a christmas tree

[Chris P Duck]

Personally I wouldn't have a problem with my dash lighting up like a Christmas tree if my coolant ran low! Zoobeefs solution is much more elegant, yours should work but you may get different brightness across the 3 LED's as the different Colors (or aare they all red? Shows how much attention I pay!)will have different resistances. And as said your will all go on and off together. Which is not what should happen!

[GeorgeBC]

Which spring rates did you go with in the end George? What's yours like on the road?

500/650 Softened up on the dampening they are fine. Actually really surprised how good they are on the road as i thought they would be terrible. Got the highland hoon in a couple of weeks so i suppose that will be a good test for them.

[FLD]

What are the MOT regs on these things? If you dont have ABS or an airbag fitted then lights aren't indicating anything. Do you have to have ABS fitted? If so it'd be a fail with the module missing wouldn't it?