P1500 - mitsubishi galant 2001 v6

Question

What this cood error neans?

Answer 1

P1500 is open circuit in alternator FR terminal, This can be from a faulty charging system to a poor connection at the alternator, FR terminal the worst case would be a failing PCM, For now check the charging system , battery voltage should be above 12.5 volts and engine running you should be 2 volts above battery voltage, so  13-14 volts should be good.