[DrewBillburg]

Using keyless results in lights flashing, doors unlocking, etc. Remote has new battery. This activity may even continue hours later, all by itself. Not using the remote totally stops problem. Local shop found tech bulletin saying that the keyless system gets interference from the engine cooling fan system, and only fixed by replacing two wiring harnesses at $150.00 each, plus labor. Keyless system is Nissan, came with car. Is this truly the only solution? If so, would an after-market system (eg., Pep Boys) work, with the original malfunctioning system in place.

Thanks