2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 221
BSD_BUS signal by charging at a constant 14.4 V battery.
Service instruction
none
2ECD
2ECD - P0620
Information saved in
DME
Fault code
2ECD - P0620
Fault text
Generator, electric
Fault description
Generator Control Circuit
Condition for fault identification
Test condition:
Commercial vehicle > 350 rpm, no BSD communications
fault
Terminal condition: Terminal 15 ON, no BSD fault
Voltage condition:
System voltage
Condition for fault memory entry
25 sec.
Action in service
With confirmation from restart
==> Replace alternator
Fault effect and breakdown warning
Driver information
Warning light:
Charge indicator lamp
Service instruction
none
2ECE
2ECE - P325A
Information saved in
DME
Fault code
2ECE - P325A
Fault text
Generator, plausibility: electric
Fault description
Generator Electrical Error Calculated
Condition for fault identification
Test condition:
Specified alternator voltage > Application threshold 1 AND
battery voltage < Application threshold 2; no electrical,
mechanical or overheating faults, no active excitation
current
Terminal condition: Terminal 15 ON
