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99 S70 ETS light

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- 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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adha153
Posts: 8
Joined: 4 July 2010
Year and Model: 1999 S70
Location: Idaho

99 S70 ETS light

Post by adha153 »

My ETS light has been coming on and off for a bit now. Now it has come on and stayed on. I don't notice any difference in the performance or driving of the car. I'm kind of worried that it could become a problem. Does anyone have any tips?
Thanks
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t5ftw
Posts: 111
Joined: 18 May 2010
Year and Model: 1999
Location: Virginia, US
Been thanked: 2 times

Post by t5ftw »

I was just about to ask the same thing. I have very similar problem. My ETS light also has been coming on and off for a while. Now, it stays on a lot longer than before. I am afraid that it won't go away sometimes. I do not feel any decreased performance when ETS light is on. Mine is 99 S70 T5. My ETM has software upgraded and yellow sticker on it. Current mileage is about 93K.
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