Quote:
Originally Posted by cbracerx
Battery tender is a major brand and has worked fine on other cars. Battery age is unknown. It’s a Varta and BMW branded. No low battery warning but I haven’t checked the running voltage yet. The vehicle started right up after storage.
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The new systems seem to divert current to the starter, and starve other components. Helps start cars when batts run low, but can result in odd errors from other modules when they dont power up properly.
In your case, through, it was on a tender...an now it is well charged and has multiple starts, with the same issues? hmmm. For $200, you prolly need one every 10 year at least..
Back to code clearing. Can you clear, then read codes without starting? Might not really be clearing them....