What is the OBD 2 fault code p0622?
What is the OBD 2 fault code p0622? OBD II fault code P0622 is a generic code that is defined as “Alternator, field control -circuit malfunction”, and is set when the PCM (Powertrain Control Module) detects an abnormal, or the absence of the PWM (Pulse Width Modulated) signal that turns the field winding in the generator on and off. What to do if your p0622 generator is not working? If not check system fuses and relays and replace defective parts as required. If voltage is discovered at the generator field coil control terminal, suspect a defective alternator/generator. If the alternator...