What is the voltage of BMW's wake-up line?

1 Answers
SanAllie
07/30/25 1:42am
BMW wake-up line voltage depends on the voltage of the power battery pack used in the electric vehicle. The charging voltage should be slightly higher than the battery pack voltage. Introduction to Wake-up Line: The wake-up line reactivates electrical appliances or modules that are in sleep mode before starting the car. The wake-up line is controlled by CAS. Simply put, the wake-up line activates the vehicle's circuit system. Introduction to Sleep Line: Opposite to the wake-up line is the sleep line, which gradually shuts down electrical appliances when the car is turned off. The wake-up line reactivates these sleeping electrical appliances before starting the car, and it is controlled by CAS.
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