Fault codes s40 2010
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Joined: Mar 2012
Posts: 9,601
Likes: 540
From: Burlington, VT
First thing to do is to research what the codes mean using a website which lists codes/causes. The fact that the codes reappear says you have a fault and not a transient "false positive".
https://www.autocodes.com/p2585_volvo.html
https://www.autocodes.com/p082a.html
This says you have two seemingly unrelated issues - first thing is to check your fuel additive level then check the connector to the sensor and control module. Next you have a generic gear lever position code. Again the first thing to do is check the connector/wiring.
Since you have two codes that may be wiring related, I'd look at a wiring diagram to see if there's anything common like a voltage source or ground point.
After that, you'd be well served to have a shop with a VIDA DICE system do a more detailed set of diagnostics.
https://www.autocodes.com/p2585_volvo.html
https://www.autocodes.com/p082a.html
This says you have two seemingly unrelated issues - first thing is to check your fuel additive level then check the connector to the sensor and control module. Next you have a generic gear lever position code. Again the first thing to do is check the connector/wiring.
Since you have two codes that may be wiring related, I'd look at a wiring diagram to see if there's anything common like a voltage source or ground point.
After that, you'd be well served to have a shop with a VIDA DICE system do a more detailed set of diagnostics.
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