Fault code lookup

PowertrainP0623

Serious

Severity: Serious - have it checked soon

Generator Lamp Control Circuit

27 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

  1. Engine control module fault
  2. Power or ground connection problem
  3. Low battery or charging voltage
  4. Wiring short or open circuit
  5. 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 27

BrandCodeDescriptionSystem
Ashok Leyland CVP0623Generator Lamp Control Circuit SAEPowertrain
BAIC MotorP0623Generator Lamp Control Circuit BrandPowertrain
BMWP0623Generator Lamp Control Circuit BrandPowertrain
BYDP0623Generator Lamp Control Circuit BrandPowertrain
CheryP0623Generator Lamp Control Circuit BrandPowertrain
DaewooP0623Generator Lamp Control Circuit BrandPowertrain
DFFSP0623ECU fault BrandPowertrain
DFFXP0623Generator Lamp Control Circuit BrandPowertrain
DFXKP0623Generator Lamp Control Circuit BrandPowertrain
EOBDP0623Generatorlampa styrkrets BrandPowertrain
GeelyP0623Generator Lamp Control Circuit BrandPowertrain
GMP0623Generator Lamp Control Circuit BrandPowertrain
Great WallP0623Generator Lamp Control Circuit BrandPowertrain
HafeiP0623Generator Lamp Control Circuit BrandPowertrain
HoldenP0623Charging System Indicator Control Circuit BrandPowertrain
HyundaiP0623Generator Lamp Control Circuit SAEPowertrain
IsuzuP0623Generator Lamp Control Circuit SAEPowertrain
Land RoverP0623Generator Lamp Control Circuit SAEPowertrain
MitsubishiP0623Alternator control circuit BrandPowertrain
OpelP0623Generator Lamp Control Circuit BrandPowertrain
PeugeotP0623Generator Lamp Control Circuit SAEPowertrain
ProtonP0623Alternator control circuit BrandPowertrain
SaabP0623Generator Lamp Control Circuit BrandPowertrain
MG (SAIC)P0623Generator Lamp Control Circuit BrandPowertrain
TataP0623Generator Lamp Control Circuit BrandPowertrain
ToyotaP0623ECU fault (tilt sensor) BrandPowertrain
VolkswagenP0623SAE: Generator Lamp Control Circuit BrandPowertrain

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.

5Related codes

  • P0620 Generator Control Circuit
  • P0621 Generator Lamp L Control Circuit
  • P0622 Generator Field F Control Circuit
  • P0624 Fuel Cap Lamp Control Circuit
  • P0625 Generator Field/F Terminal Circuit Low
  • P0626 Generator Field/F Terminal Circuit High
  • P0627 Fuel Pump A Control Circuit/Open
  • P0628 Fuel Pump A Control Circuit Low
  • P0629 Fuel Pump A Control Circuit High
  • P062A Fuel Pump A Control Circuit Range/Performance
  • P062B ECM Internal Control Module - Fuel Injection Control implausible (Drive Failure)
  • P062C Internal Control Module Vehicle Speed Performance

Browse Pxxx codes or P062xx codes.

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