PowertrainP0622

Serious

Severity: Serious - have it checked soon

Generator Field F Control Circuit

33 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

Safety: This code relates to the charging system. The battery may go flat and the car may stall.

1What it means in plain English

The engine computer or one of its output circuits has a fault.

2Common causes

Engine control module fault
Power or ground connection problem
Low battery or charging voltage
Wiring short or open circuit
Software or memory fault

3Can I drive?

Serious · drive with care

If the engine runs normally, drive carefully to a workshop for diagnosis. If it runs badly, stalls, or will not restart, have the car towed.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 33

Brand	Code	Description	System
Ashok Leyland CV	P0622	Generator Field F Control Circuit SAE	Powertrain
BAIC Motor	P0622	Generator Field/F Terminal Circuit Brand	Powertrain
BMW	P0622	Generator Field F Control Circuit SAE	Powertrain
BYD	P0622	Generator FR terminal Brand	Powertrain
Chery	P0622	Generator FR terminal Brand	Powertrain
Daewoo	P0622	Generator Field/F Terminal Circuit Brand	Powertrain
Daihatsu	P0622	Alterfield duty abnormalitya Brand	Powertrain
DFFS	P0622	ECU internal fault Brand	Powertrain
DFFX	P0622	Generator FR terminal Brand	Powertrain
DFXK	P0622	Generator Field/F Terminal Circuit Brand	Powertrain
EOBD	P0622	Generator Field F Control Circuit SAE	Powertrain
Ford	P0622	Alternator: P1246 Brand	Powertrain
Geely	P0622	Generator FR terminal Brand	Powertrain
GM	P0622	Circuit borne F générateur Brand	Powertrain
Great Wall	P0622	Generator FR terminal Brand	Powertrain
Hafei	P0622	Generator FR terminal Brand	Powertrain
Holden	P0622	Generator F-Terminal Circuit Brand	Powertrain
Hyundai	P0622	Generator Field F Control Circuit SAE	Powertrain
Isuzu	P0622	Generator Field F Control Circuit SAE	Powertrain
Land Rover	P0622	Generator field terminal circuit Brand	Powertrain
Mazda	P0622	Alternator: P1246 Brand	Powertrain
Mitsubishi	P0622	Generator FR terminal Brand	Powertrain
Opel	P0622	Circuit borne F générateur Brand	Powertrain
Perodua	P0622	Alterfield duty abnormalitya Brand	Powertrain
Peugeot	P0622	Generator Field F Control Circuit SAE	Powertrain
Proton	P0622	Generator FR terminal Brand	Powertrain
Saab	P0622	Circuit borne F générateur Brand	Powertrain
MG (SAIC)	P0622	Generator Field/F Terminal Circuit Brand	Powertrain
Smart	P0622	Generator Field F Control Circuit SAE	Powertrain
Suzuki	P0622	Generator Field / F Terminal Circuit Brand	Powertrain
Tata	P0622	Generator Control Circuit Brand	Powertrain
Toyota	P0622	ECU internal fault (energy reserve) Brand	Powertrain
Volkswagen	P0622	SAE: Generator Field F Terminal Circuit Brand	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 4

These 7-character codes are manufacturer-specific variants of P0622 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P062200	Incorrect roating magnetic field or inverted phase L1/N Brand	Powertrain
SsangYong	P062200	Alternator feedback frequency over max threshold Brand	Powertrain
SsangYong	P062236	Alternator feedback frequency under min threshold Brand	Powertrain
SsangYong	P062237	Alternator frequency excessive Brand	Powertrain

6Related codes

Browse Pxxx codes or P062xx codes.