Fault code lookup

PowertrainP1439

Caution

Severity: Caution - get it checked when you can

Floor temperature switch circuit

16 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 16

BrandCodeDescriptionSystem
BYDP1439NO. 314 battery voltage sampling wire loop fault BrandPowertrain
CheryP1439Potentiometer for EGR (G212): Error in Basic Setting BrandPowertrain
DaewooP1439Floor Temp Switch Circuit BrandPowertrain
DFXKP1439Potentiometer for EGR (G212): Error in Basic Setting BrandPowertrain
EOBDP1439Lattiavastinpiiri BrandPowertrain
GeelyP1439Potentiometer for EGR (G212): Error in Basic Setting BrandPowertrain
GMP1439Floor Temp Switch Circuit BrandPowertrain
Great WallP1439Cylinder 3 exhaust temperature implausible BrandPowertrain
HoldenP1439No description available Powertrain
HondaP1439No description available Powertrain
Land RoverP1439Floor Temp Switch Circuit BrandPowertrain
OpelP1439Floor Temp Switch Circuit BrandPowertrain
PeugeotP1439No description available Powertrain
ProtonP1439No description available Powertrain
SaabP1439Floor Temp Switch Circuit BrandPowertrain
ToyotaP1439Floor temperature switch 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

Browse Pxxx codes or P143xx codes.

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