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Srs System Safety - Removing The Steering Wheel - 2000 V40 Topic is solved

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

broadusc
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Srs System Safety - Removing The Steering Wheel - 2000 V40

Post by broadusc » Fri Feb 22, 2019 9:38 am

I am going to be replacing my turn signal in my 2000 V40 this weekend and have researched the procedure, but just want to double check with someone who knows more than me about the airbag system. From what I can tell, if you disconnect the battery overnight, it should be fairly safe to remove the steering wheel and complete the work without killing or maiming yourself. It that about right? Any other advice or pointers?



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Re: Srs System Safety - Removing The Steering Wheel - 2000 V40  Topic is solved

Post by jimmy57 » Fri Feb 22, 2019 10:14 am

VIDA instructions do not have you wait long. The wait is key off befoe you disconnect neg lead. This allows any network activity to cease. Your car has one teeny bit of network between ECM and TCM. The SRS module is purposefully made to power down quickly as that is a safety for emergency responders after a crash. The disconnection of airbag connectors should not be done fr a couple of minutes. The removal of bag from wheel takes more than that usually. Park car with wheels and steering wheel in straight ahead position. If you turn wheel for fastener access then turn it back before removing wheel from steering shaft. The contact reel position should be preseved. There is a screw in steering wheel and a place to insert the screw to hold the reel in that position. The screw being in place when wheel bolt is loosened or tightened is a leading cause of broken contact reels so most do no use it they only make sure it is in the same place as found.
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broadusc
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Re: Srs System Safety - Removing The Steering Wheel - 2000 V40

Post by broadusc » Fri Feb 22, 2019 10:29 am

Are there any gotchas? If I follow the procedure exactly and hook everything back up correctly, is there any danger the airbag will go off unexpectedly in the future?



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Re: Srs System Safety - Removing The Steering Wheel - 2000 V40

Post by alschnertz » Fri Feb 22, 2019 2:38 pm

I did not have to remove the steering wheel to remove and repair the signal switch / stalk on my 2001 S40.
I do remember needing a small Phillips screwdriver though.


'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
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Re: Srs System Safety - Removing The Steering Wheel - 2000 V40

Post by jimmy57 » Fri Feb 22, 2019 3:05 pm

No risk that the airbag will deploy for no reason. The contact reel damage is the biggest risk. The reel has a range of 4.5 to 5 turns and the steering wheel range from full left to full right is 3 1/4 or so. If the contact reel is one turn past center and has 1.2 turns to go and the steering wheel goes 1.6 turns then it breaks and SRS light pops on for the open circuit to airbag. If there is any doubt: take note of where wires pass through steering wheel. It my be at 1 o'clock for instance. Turn contact reel to the left until it begins to bind. Count each turn as you move it to the right. The point where it got harder to move was 9 o'clock and when you got to 5 oclock past the 4th turn it binds again. That means it turned roughly 4.7 turns. Go back two turns and then further to 1 o'clock where wire passes through the wheel in this example. That would be make the reel be about 2 1/4 from that end and 1/2 of 3 1/4 is 1 5/8 so the reel has spare travel and will not break. I hope that makes sense. If you went back all the way left an counted from 9 oclock two turns to 9 oclock again and then to 1 o clock where wires pass you'd be maybe 2.4 turns from that end but you'd be in the same place as you would counting from right end of travel point.



broadusc
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Re: Srs System Safety - Removing The Steering Wheel - 2000 V40

Post by broadusc » Fri Feb 22, 2019 4:34 pm

alschnertz wrote:
Fri Feb 22, 2019 2:38 pm
I did not have to remove the steering wheel to remove and repair the signal switch / stalk on my 2001 S40.
I do remember needing a small Phillips screwdriver though.
Hmmm....I don't see how that's possible looking at the procedure here https://workshop-manuals.com/volvo/v40/ ... rocedures/

The washer stalk, it looks like you don't have to take off the steering wheel though.



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Re: Srs System Safety - Removing The Steering Wheel - 2000 V40

Post by alschnertz » Fri Feb 22, 2019 6:50 pm

Not sure what else to say.
But I assure you, I did not remove the steering wheel to take the switch off.


'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
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Re: Srs System Safety - Removing The Steering Wheel - 2000 V40

Post by broadusc » Fri Feb 22, 2019 6:55 pm

I'm going to try it your way first for sure. :-)



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alschnertz
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Re: Srs System Safety - Removing The Steering Wheel - 2000 V40

Post by alschnertz » Sat Feb 23, 2019 1:00 pm

Cool.
I got to thinking, it may have been a small torx wrench and not a small Phillips to remove the switch screws.
Regardless of what kind of head the screw had, the steering wheel didn't come off.

Post back with your results!


'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE

broadusc
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Re: Srs System Safety - Removing The Steering Wheel - 2000 V40

Post by broadusc » Sat Feb 23, 2019 5:18 pm

So on the 2000, you definitely have to remove the steering wheel. The turn signal lever has two screws on the back that you have to remove, and the only way to get to them is to remove the steering wheel and the mount that the washer stalk and turn signal stalk are attached to. The procedure I linked to earlier in the thread is correct. It wasn't too bad. The worst part is me being terrified of the airbag.



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