Fault code lookup

PowertrainP0A1A

Caution

Severity: Caution - get it checked when you can

Generator Control Module

30 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 or powertrain control system has stored a fault that does not have specific guidance in this database yet.

2Common causes

  1. Sensor or actuator fault
  2. Wiring or connector fault
  3. Vacuum or intake leak
  4. Fuel or ignition problem
  5. Control module fault

3Can I drive?

Caution · drive with care

The electrical system may fail and the battery may go flat, risking a stall. If the battery or charging warning light is on, drive straight to a workshop.

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 30

BrandCodeDescriptionSystem
Ashok Leyland CVP0A1AEngine Cold Start. Fuel Injection. Signal C. Value Too High BrandPowertrain
BAIC MotorP0A1AGenerator Control Module BrandPowertrain
BYDP0A1AGenerator Control Module BrandPowertrain
CheryP0A1AGenerator Control Module BrandPowertrain
DaewooP0A1AGenerator Control Module BrandPowertrain
DaihatsuP0A1APCU error received BrandPowertrain
DFFSP0A1AGenerator Control Module BrandPowertrain
DFFXP0A1AGenerator Control Module BrandPowertrain
DFXKP0A1AGenerator Control Module BrandPowertrain
EOBDP0A1AGeneratorstyrmodul BrandPowertrain
GeelyP0A1AGenerator Control Module BrandPowertrain
GMP0A1AGenerator Control Module BrandPowertrain
Great WallP0A1AGenerator Control Module BrandPowertrain
HafeiP0A1AGenerator Control Module BrandPowertrain
HoldenP0A1AGenerator Electrical Malfunction BrandPowertrain
HondaP0A1AGenerator Control Module SAEPowertrain
HyundaiP0A1AGenerator Control Module SAEPowertrain
IsuzuP0A1AGenerator Control Module SAEPowertrain
Land RoverP0A1AGenerator Control Module SAEPowertrain
MaseratiP0A1AGenerator control module BrandPowertrain
MitsubishiP0A1AAlternator communication BrandPowertrain
OpelP0A1AGenerator Control Module BrandPowertrain
PeroduaP0A1APCU error received BrandPowertrain
PeugeotP0A1AGenerator Control Module SAEPowertrain
ProtonP0A1AAlternator communication BrandPowertrain
SaabP0A1AGenerator Control Module BrandPowertrain
MG (SAIC)P0A1AGenerator Control Module BrandPowertrain
SubaruP0A1AGenerator Control Module SAEPowertrain
SuzukiP0A1AGenerator Control Module SAEPowertrain
ToyotaP0A1AAlternator control signal failure 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

  • P0A10 DC/DC converter status circuit high
  • P0A11 DC/DC converter enable circuit/open
  • P0A12 DC/DC Converter Enable Circuit Low
  • P0A13 DC/DC Converter Enable Circuit High
  • P0A14 Engine Mount A Control Circuit/Open
  • P0A15 Engine Mount A Control Circuit Low
  • P0A16 Engine Mount A Control Circuit High
  • P0A17 Motor torque sensor circuit
  • P0A18 Motor torque sensor circuit range/performance
  • P0A19 Motor torque sensor circuit low
  • P0A1B Drive Motor A Control Module Performance
  • P0A1C Drive Motor B Control Module

Browse Pxxx codes or P0A1xx codes.

OpenDTC - independent fault code reference