Airbag warning light

macafee2 · 29th January 2021, 16:12

When removing the steering wheel airbag it is recommended to disconnect the battery for a while before hand.
As I have the airbag warning light on, I want to fiddle with the under seat connectors. I hope pulling them apart and reconnecting them will suffice.
Should I disconnect the battery first?

Does each seat have a warning light or does one light deal with both front seats?

macafee2

SCP440 · 29th January 2021, 17:28

No need to remove the battery but once the key has been removed from the ignition dont start doing the job for at least 30 mins.

Not always the under seat connections as I recently found out, mine turned out to be a high resistance connector on the nearside impact sensor.

One light does everything, any fault and the light will come on.

Devilish · 29th January 2021, 17:39

My advice is to disconnect the battery Ian.

There are sensors throughout the motor that will signal an airbag fault

Under seat connectors are the usual suspects. If you still have the airbag fault light after you have modified them, you need a T4 session, to tell you which of the many shock sensors, air bags, pre tensioners are faulty.

Shock sensors under the front seats would be my guess, if the underseat connectors are ok

Devilish · 29th January 2021, 17:44

Ian, what others may do, and what I would do are different things. Disconnect the battery. It does not matter how long the key is out the IGN.
Much of the system is connected in series. They are + triggered. Inadvertently put anything in contact with 12v and you will rue the day.

29th January 2021, 16:12	#1
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,988 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	Airbag warning light When removing the steering wheel airbag it is recommended to disconnect the battery for a while before hand. As I have the airbag warning light on, I want to fiddle with the under seat connectors. I hope pulling them apart and reconnecting them will suffice. Should I disconnect the battery first? Does each seat have a warning light or does one light deal with both front seats? macafee2

29th January 2021, 17:39	#3
Devilish This is my second home 75 Tourer Join Date: Apr 2009 Location: Cannock Posts: 4,133 Thanks: 3 Thanked 189 Times in 121 Posts	My advice is to disconnect the battery Ian. There are sensors throughout the motor that will signal an airbag fault Under seat connectors are the usual suspects. If you still have the airbag fault light after you have modified them, you need a T4 session, to tell you which of the many shock sensors, air bags, pre tensioners are faulty. Shock sensors under the front seats would be my guess, if the underseat connectors are ok __________________ If at first you don't succeed, hide the evidence

29th January 2021, 17:44	#4
Devilish This is my second home 75 Tourer Join Date: Apr 2009 Location: Cannock Posts: 4,133 Thanks: 3 Thanked 189 Times in 121 Posts	Ian, what others may do, and what I would do are different things. Disconnect the battery. It does not matter how long the key is out the IGN. Much of the system is connected in series. They are + triggered. Inadvertently put anything in contact with 12v and you will rue the day. __________________ If at first you don't succeed, hide the evidence Last edited by Devilish; 29th January 2021 at 17:47..

29th January 2021, 17:28	#2
SCP440 I really should get out more....... MG ZT-T 260 Join Date: Feb 2016 Location: Witney Posts: 2,508 Thanks: 6 Thanked 910 Times in 571 Posts	No need to remove the battery but once the key has been removed from the ignition dont start doing the job for at least 30 mins. Not always the under seat connections as I recently found out, mine turned out to be a high resistance connector on the nearside impact sensor. One light does everything, any fault and the light will come on.