>>> before I go paying the Nissan dealer squillions to plug it into whatever they plug it into...
You may have to do that anyway after the new battery as some codes... even if spurious... can only be cleared by dealer level diagnostics. Very much depends just how sophisticated the indie's gear was.
But yes as others have said above a tired battery will often throw the most obscure fault codes. Our CLK had spent a month on the dealer's forecourt prior to our purchase the other week and many of the systems had various codes because folks had been viewing it and playing with the gizmos taking the battery right down but still just enough to start.
I condition charged the battery and cleared all the codes... they've not returned.
I'd advise giving the indie a little profit from his efforts buy getting him to source and fit a new battery then running a code clear and recheck to see it it's done the trick.
Only if that fails will it need to go to the dealer to put the light out. If so hope they are better than the BMW dealers here who quoted me £182 min to run a diagnostic and even then they mis-diagnosed the issue. Of course I refused to pay and they accepted that. Bought a £24 used part on Ebay... cleared the code with my pocket reader/diagnostic and all sorted.
Last edited by: Fenlander on Wed 20 Sep 17 at 17:47
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