The problem was fixed by replacing one coal at the alternator, in debug mode is 14V and before at starting engine it remained the U-Term at 11.6V now: U-Term30: 14V U-Reference:13.5V
Tag: opel
astra h error ECN062102
Astra h – having random battery red led on starting gives error at pedal test on alternator: P0621 Generator Lamp “L” Control Circuit Malfunction IPC (Instrument) C-021