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SRS Dash Warning 1999 S70-GLT

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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800artfreed
Posts: 118
Joined: 03 Apr 2018, 15:49
Year and Model: 98 S70T5; 99 S70GLt
Location: Washington DC
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SRS Dash Warning 1999 S70-GLT

Post by 800artfreed »

Suddenly the SRS dash light appeared on the 1999 S70-GLT. Using a Harbor Freight Zurich 13 scan tool (no longer sold) the data from the SRS scan was driver's airbag signal intermittent. The scanner listed it as fault code # 0079. Searching of the forum I saw the link to Robert DiY Youtube video on replacing the clock-spring connector for the steering wheel airbag. Pulled one from the local PnP. Good news they are now selling airbags again.
Installed the clock-spring connector and reconnected the battery. Tried to reset the SRS code using my scanner but it failed to reset.

I had a spare airbag and swapped that as well hoping that the system would reset. No luck.
With both exchanged parts still in the car I went to a local body shop that I use for repairs and asked if they had a professional level scan tool I could use to try and confirm the code was correct. Many web sites suggest that SRS #0079 is a seat belt pre-tensioner fault. His Snap-On scanner only went back to year 2000. My car was a 1999. I used the scanner anyway and it synced to the SRS system and detected the SRS fault, confirming the same fault code # 0079.
I then used the Snap-On scanner to reset the code. Hurray! It reset. The dash light has remained off. So it was probably the clock spring connector and not the airbag but I don't have a definitive outcome. This vehicle as less than 90K miles. I have 2 other 1998 x70s with plus 200K miles. I find it amazing that this is the car that developed this fault.
VolvoVoyeur
1998 S70-T5 200K+
1998 V70-T5 200k+
1999 S70-GLT 80k+

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