This sounds like some other system also has a problem. I would be very surprised if there's power going to Those sensors if the computer is in sleep mode. Determine if your car goes to sleep mode with the light by the gear indicator. And of course try one sensor at a time.

How many pins on the sensors? If just two then measure the resistance on the sensor when it's not plugged in or the voltage on the sensor when it is plugged in

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)