Fault code lookup

PowertrainP0B3F

Caution

Severity: Caution - get it checked when you can

Short circuit or open circuit to power supply (+)

20 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 20

BrandCodeDescriptionSystem
Ashok Leyland CVP0B3FNo description available Powertrain
BAIC MotorP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
Mercedes-BenzP0B3FNo description available Powertrain
BYDP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
CheryP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
DFFSP0B3FOpen circuit or short to battery BrandPowertrain
DFFXP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
DFXKP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
EOBDP0B3FHybrid/EV-akun jänniteanturi 'A' -piiri katkonainen/epävakaa BrandPowertrain
GeelyP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
GMP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
Great WallP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
HafeiP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
HyundaiP0B3FNo description available Powertrain
IsuzuP0B3FNo description available Powertrain
Land RoverP0B3FHybrid/EV Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
PeugeotP0B3FNo description available Powertrain
SaabP0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
MG (SAIC)P0B3FHybrid Battery Voltage Sense 'A' Circuit Intermittent/Erratic BrandPowertrain
ToyotaP0B3FShort circuit or open circuit to power supply (+) 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.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of P0B3F and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzP0B3F00Sensor A for the battery voltage in the hybrid/high-voltage battery has a sporadic malfunction. BrandPowertrain

6Related codes

Browse Pxxx codes or P0B3xx codes.

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