Continuous Airbag Light

bigblue75 · 21st May 2019, 15:49

Had the airbag light come on and "airbag fault" show when I started the car earlier. Previously fixed this in my last 75 by disconnecting and reconnecting the blue and yellow underseat connectors but not this time.
Have checked the carpets around the side impact sensors and both sides dry so read a little from the forum and came across the post

https://the75andztclub.co.uk/forum/s...2&postcount=39

The airbag light on my dash remains on continuously from posII to starting and beyond. I also found that removing fuse 18 before restarting the car has no effect on the dashboard airbag light which stays lit until the key is turned to stop the engine.

Do these symptoms indicate a faulty DCU? is there anything else I can check before replacing the SRS DCU and having it configured to the car?

Thanks in advance.

planenut · 21st May 2019, 15:54

I had the light displayed on one car I acquired, and it did not disappear until I gently moved the connectors in the plugs, just to bend them slightly but without undue force.

The only time is showed since was during severe rain storms so I think that was probably due to condensation.

good luck.

roverbarmy · 21st May 2019, 16:31

I also use electrical contact cleaner, sprayed into the connectors.

max1 · 21st May 2019, 18:17

I had the airbag light on permanently, and it was down to corrosion on the side impact sensor under the carpet. If you have ever had water under the carpets this will cause the problem. There are two sensors, one under each front seat, and there are two colour variations dependant on your vehicle model, one is orange and one is green.

marinabrian · 21st May 2019, 18:20

I reckon you should have it diagnosed properly Joe, otherwise it could be absolutely anything

Brian

bigblue75 · 21st May 2019, 18:52

Awaiting a cruise kit which will need configuring to the car so will try to get to a T4 for this and a diagnosis of the airbag fault in one session.
Had hoped for a definite "yeah, that's the SRS DCU goosed" kind of answer- would have picked one up to take along while having the cruise sorted.

Thanks for the assistance.

21st May 2019, 15:49	#1
bigblue75 older not wiser 75 Tourer Join Date: Oct 2014 Location: Falkirk Posts: 274 Thanks: 93 Thanked 46 Times in 35 Posts	Continuous Airbag Light Had the airbag light come on and "airbag fault" show when I started the car earlier. Previously fixed this in my last 75 by disconnecting and reconnecting the blue and yellow underseat connectors but not this time. Have checked the carpets around the side impact sensors and both sides dry so read a little from the forum and came across the post https://the75andztclub.co.uk/forum/s...2&postcount=39 The airbag light on my dash remains on continuously from posII to starting and beyond. I also found that removing fuse 18 before restarting the car has no effect on the dashboard airbag light which stays lit until the key is turned to stop the engine. Do these symptoms indicate a faulty DCU? is there anything else I can check before replacing the SRS DCU and having it configured to the car? Thanks in advance. Last edited by bigblue75; 21st May 2019 at 15:51..

21st May 2019, 16:31	#3
roverbarmy This is my second home Roverless + 1.7D Sportage Join Date: Aug 2014 Location: East Norfolk Posts: 7,050 Thanks: 729 Thanked 2,021 Times in 1,449 Posts	I also use electrical contact cleaner, sprayed into the connectors. __________________ Oil in my veins!

21st May 2019, 15:54	#2
planenut Regional Secretary Rover 1.8T Tourer Join Date: May 2007 Location: Heathrow Posts: 6,955 Thanks: 1,551 Thanked 2,036 Times in 1,264 Posts	I had the light displayed on one car I acquired, and it did not disappear until I gently moved the connectors in the plugs, just to bend them slightly but without undue force. The only time is showed since was during severe rain storms so I think that was probably due to condensation. good luck.

21st May 2019, 18:17	#4
max1 Avid contributor Rover 75 Tourer cdt Join Date: Sep 2014 Location: Wolverhampton Posts: 176 Thanks: 51 Thanked 57 Times in 39 Posts	I had the airbag light on permanently, and it was down to corrosion on the side impact sensor under the carpet. If you have ever had water under the carpets this will cause the problem. There are two sensors, one under each front seat, and there are two colour variations dependant on your vehicle model, one is orange and one is green.

21st May 2019, 18:20	#5
marinabrian MG ZT Join Date: Jan 2011 Location: Newcastle Upon Tyne Posts: 20,151 Thanks: 3,565 Thanked 10,837 Times in 5,718 Posts	I reckon you should have it diagnosed properly Joe, otherwise it could be absolutely anything Brian

21st May 2019, 18:52	#6
bigblue75 older not wiser 75 Tourer Join Date: Oct 2014 Location: Falkirk Posts: 274 Thanks: 93 Thanked 46 Times in 35 Posts	Awaiting a cruise kit which will need configuring to the car so will try to get to a T4 for this and a diagnosis of the airbag fault in one session. Had hoped for a definite "yeah, that's the SRS DCU goosed" kind of answer- would have picked one up to take along while having the cruise sorted. Thanks for the assistance.