That Pesky D9 Air Bag Light

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

Moderator: Moderators

Post Reply
User avatar
Welly
The moderator formally known as Welton
Posts: 15033
Joined: Tue Jan 10, 2006 12:52 pm
Location: East Midlandfordshire

That Pesky D9 Air Bag Light

Post by Welly »

I know much has been said on here before and it's *really* common but all I normally do is give all the connections under the seat a good wiggle and it normally goes away.

Just recently though my fiddlings are not working and the Air Bag light is on most days.

I should know here, but is there really a fix for this?
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
GeordieBoy
3.0 24v
Posts: 779
Joined: Sat Jan 14, 2006 9:15 pm
Location: Washington

Post by GeordieBoy »

Small Drill Bit, and Drill a hole to break the bulb, problem solved. :cheesy:
UK Open Drift Championship 2011 Driver #80
Vehicles I own:-
1999 S Peugeot 406 LX 1.9TD (90% WVO, 10% Petrol)
2000 W Ford Transit LWB High Roof 2.5D
1997 R E36 BMW 328i Saloon (Drift/Track Car)
1995 N E36 BMW 328i Saloon (Spare Parts Car)
Image
SOLD --- 2001 Y 406 GTX 2.0 HDi 110bhp
User avatar
Welly
The moderator formally known as Welton
Posts: 15033
Joined: Tue Jan 10, 2006 12:52 pm
Location: East Midlandfordshire

Post by Welly »

Err, thanks, Geordieboy :|
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
User avatar
Welly
The moderator formally known as Welton
Posts: 15033
Joined: Tue Jan 10, 2006 12:52 pm
Location: East Midlandfordshire

Post by Welly »

Well last night I un-plugged and re-plugged everything under both seats and all is well (for now).
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
User avatar
wes1001
2.0 16v
Posts: 177
Joined: Tue Dec 19, 2006 9:10 am
Location: Sticky out bit, right on the tip of Kent, practically in the channel !!

Post by wes1001 »

Thought about chopping connector blocks off and hard wiring Welly ?. 8)
Image
User avatar
jameslxdt
3.0 24v
Posts: 2512
Joined: Wed Apr 26, 2006 9:30 pm
Location: London, on me bike
Contact:

Post by jameslxdt »

wes1001 wrote:Thought about chopping connector blocks off and hard wiring Welly ?. 8)
this is what you see under my seats :cheesy: air bag light never came on (as its a D8) but its my way of ever stopping it comming one :lol:
Peugeot wrote:what are you worried about? we made car that lasted 10 years"..."Zat is very goode non? :|
FAQ - 406 D8 petrol (excl. V6) running and starting problems
User avatar
niz406
Admin <BR>Turbo God
Posts: 1752
Joined: Sun Sep 11, 2005 1:07 am
Location: Derbyshire
Contact:

Re: That Pesky D9 Air Bag Light

Post by niz406 »

Welton wrote:I know much has been said on here before and it's *really* common but all I normally do is give all the connections under the seat a good wiggle and it normally goes away.

Just recently though my fiddlings are not working and the Air Bag light is on most days.

I should know here, but is there really a fix for this?
Unplug the Airbag CU... :D
Niz406
--------
"Some Say he can fart fire, whilst others say he can urinate rocket fuel.... all we know is he's called... The Niz"
Image
User avatar
jameslxdt
3.0 24v
Posts: 2512
Joined: Wed Apr 26, 2006 9:30 pm
Location: London, on me bike
Contact:

Post by jameslxdt »

light will stay on permenatly as the instrument panel looks for an earth from the ecu to put the light out if there is no fault, if there is no earth, i.e. the light stays on permenatly, just imagine if there was a wiring fault to the airbag ecu, you wouldnt know there was a fault otherwise
Peugeot wrote:what are you worried about? we made car that lasted 10 years"..."Zat is very goode non? :|
FAQ - 406 D8 petrol (excl. V6) running and starting problems
User avatar
niz406
Admin <BR>Turbo God
Posts: 1752
Joined: Sun Sep 11, 2005 1:07 am
Location: Derbyshire
Contact:

Post by niz406 »

jameslxdt wrote:light will stay on permenatly as the instrument panel looks for an earth from the ecu to put the light out if there is no fault, if there is no earth, i.e. the light stays on permenatly, just imagine if there was a wiring fault to the airbag ecu, you wouldnt know there was a fault otherwise
Ground the pin out on the connector, simply bridge the ECU's Earth to the switching wire :D
Niz406
--------
"Some Say he can fart fire, whilst others say he can urinate rocket fuel.... all we know is he's called... The Niz"
Image
User avatar
jameslxdt
3.0 24v
Posts: 2512
Joined: Wed Apr 26, 2006 9:30 pm
Location: London, on me bike
Contact:

Post by jameslxdt »

and blowup the instrument panel and run the risk of blowing over £1,000s of airbags and seat belt pretensioners
alot safer and easier to just take the bulb out dont you think :lol:
Peugeot wrote:what are you worried about? we made car that lasted 10 years"..."Zat is very goode non? :|
FAQ - 406 D8 petrol (excl. V6) running and starting problems
User avatar
niz406
Admin <BR>Turbo God
Posts: 1752
Joined: Sun Sep 11, 2005 1:07 am
Location: Derbyshire
Contact:

Post by niz406 »

jameslxdt wrote:and blowup the instrument panel and run the risk of blowing over £1,000s of airbags and seat belt pretensioners
alot safer and easier to just take the bulb out dont you think :lol:
How if all you are doing is unplugging the Airbag ECU and then bridging the switched wire for the instrument cluster to stop it igniting??
Niz406
--------
"Some Say he can fart fire, whilst others say he can urinate rocket fuel.... all we know is he's called... The Niz"
Image
User avatar
jameslxdt
3.0 24v
Posts: 2512
Joined: Wed Apr 26, 2006 9:30 pm
Location: London, on me bike
Contact:

Post by jameslxdt »

have you seen how small the pins are on the harness plug :lol:
Peugeot wrote:what are you worried about? we made car that lasted 10 years"..."Zat is very goode non? :|
FAQ - 406 D8 petrol (excl. V6) running and starting problems
User avatar
niz406
Admin <BR>Turbo God
Posts: 1752
Joined: Sun Sep 11, 2005 1:07 am
Location: Derbyshire
Contact:

Post by niz406 »

jameslxdt wrote:have you seen how small the pins are on the harness plug :lol:
Yep and I used to work as an auto electrician many years ago, so have a box full of crimps / connectors and cables and all sorts :D
Niz406
--------
"Some Say he can fart fire, whilst others say he can urinate rocket fuel.... all we know is he's called... The Niz"
Image
Post Reply