Fault code lookup

PowertrainP0AA5

Caution

Severity: Caution - get it checked when you can

Hybrid Battery Negative Contactor Circuit Stuck Open

25 brands affected · Description from Toyota data.

Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions

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

Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.

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 25

BrandCodeDescriptionSystem
Ashok Leyland CVP0AA5No description available Powertrain
BAIC MotorP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
Mercedes-BenzP0AA5No description available Powertrain
BYDP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
CheryP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
DaewooP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
DFFSP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
DFFXP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
DFXKP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
EOBDP0AA5Hybrid/EV battery negative contactor circuit stuck open BrandPowertrain
FordP0AA5No description available Powertrain
GeelyP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
GMP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
Great WallP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
HafeiP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
HoldenP0AA5Hybrid/EV Battery Negative Contactor Circuit Stuck Open BrandPowertrain
HondaP0AA5No description available Powertrain
HyundaiP0AA5No description available Powertrain
IsuzuP0AA5No description available Powertrain
Land RoverP0AA5No description available Powertrain
OpelP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
PeugeotP0AA5No description available Powertrain
SaabP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
MG (SAIC)P0AA5Hybrid Battery Negative Contactor Circuit Stuck Open BrandPowertrain
ToyotaP0AA5Hybrid Battery Negative Contactor Circuit Stuck Open 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

Browse Pxxx codes or P0AAxx codes.

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