Fault code lookup

PowertrainP084F

Caution

Severity: Caution - get it checked when you can

Park/neutral switch output circuit

21 brands affected · Description from Toyota data.

Key terms: Powertrain: engine, transmission and emissions

1What it means in plain English

This range normally covers the transmission control system, but some manufacturers use P07-P09 codes for unrelated functions (fuel pump control, air-mix motors, lighting or windows). Check the description before assuming it is a transmission fault.

2Common causes

  1. Low or dirty transmission fluid
  2. Faulty shift solenoid
  3. Faulty speed sensor
  4. Wiring or connector fault
  5. Internal transmission wear

3Can I drive?

Caution · drive with care

If the transmission slips, jerks, will not shift, or a transmission temperature warning is on, stop driving and let it cool: continuing can cause expensive damage. If the code names a different system (for example the fuel pump), treat it on its own terms; a fuel-pump control failure can stall the car, so have it checked before driving further. Otherwise drive gently 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 21

BrandCodeDescriptionSystem
Ashok Leyland CVP084FBackup file name BrandPowertrain
BAIC MotorP084FPark/Neutral Switch Output Circuit BrandPowertrain
BYDP084FPark/Neutral Switch Output Circuit BrandPowertrain
CheryP084FPark/Neutral Switch Output Circuit BrandPowertrain
DFFSP084FPark/Neutral Switch Output Circuit BrandPowertrain
DFFXP084FPark/Neutral Switch Output Circuit BrandPowertrain
DFXKP084FPark/Neutral Switch Output Circuit BrandPowertrain
EOBDP084FPark/neutralbryter utgangskrets BrandPowertrain
GeelyP084FPark/Neutral Switch Output Circuit BrandPowertrain
GMP084FPark/Neutral Switch Output Circuit BrandPowertrain
Great WallP084FPark/Neutral Switch Output Circuit BrandPowertrain
HafeiP084FPark/Neutral Switch Output Circuit BrandPowertrain
HondaP084FNo description available Powertrain
HyundaiP084FNo description available Powertrain
IsuzuP084FNo description available Powertrain
Land RoverP084FNo description available Powertrain
PeugeotP084FNo description available Powertrain
ProtonP084FNo description available Powertrain
SaabP084FPark/Neutral Switch Output Circuit BrandPowertrain
MG (SAIC)P084FPark/Neutral Switch Output Circuit BrandPowertrain
ToyotaP084FPark/neutral switch output 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 P084xx codes.

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