Published On May 28, 2022
My water/coolant pump supply in BMW 535i 2011-14 got short circuit and fuse blew off inside the ISM.
Error codes
20A909 BSD: Engine coolant pump missing
20A902 MOTOR COOLING SYSTEM: low power operation: supply voltage the coolant pump is too low
20AB08 ENGINE-COOLING SYSTEM: no emergency signal to coolant pump
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