Fault code lookup

PowertrainP1074

Caution

Severity: Caution - get it checked when you can

Ambient temperature sensor signal is implausible (low)

21 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 21

BrandCodeDescriptionSystem
BAIC MotorP1074Intake Air Temperature (IAT) sensor signal low BrandPowertrain
BYDP1074NO. 117 battery voltage sampling wire loop fault BrandPowertrain
CheryP1074Mass Air Flow Sensor 2 (G246): Signal too High BrandPowertrain
DaewooP1074ECU Does Not See Speed Sens BrandPowertrain
DFFSP1074Ambient temperature sensor signal is implausible BrandPowertrain
DFXKP1074Ambient temperature sensor signal implausibly low BrandPowertrain
EOBDP1074Luchtmassameter 2 BrandPowertrain
GeelyP1074Mass Air Flow Sensor 2 (G246): Signal too High BrandPowertrain
GMP1074ECU Does Not See Speed Sens BrandPowertrain
HoldenP1074Stop/Start Capacitor Control Module Long Term Memory Reset BrandPowertrain
IsuzuP1074No description available Powertrain
MahindraP1074No description available Powertrain
MaseratiP1074No description available Powertrain
MitsubishiP1074Module2(Cell5)voltage under flow BrandPowertrain
OpelP1074ECU Does Not See Speed Sens BrandPowertrain
PeugeotP1074No description available Powertrain
PorscheP1074No description available Powertrain
ProtonP1074Module2(Cell5)voltage under flow BrandPowertrain
SaabP1074ECU Does Not See Speed Sens BrandPowertrain
ToyotaP1074Ambient temperature sensor signal is implausible (low) BrandPowertrain
VolkswagenP1074Mass air flow sensor 2 (G246): signal too high; Short to plus 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 P107xx codes.

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