Fault code lookup

PowertrainP001F

Caution

Severity: Caution - get it checked when you can

Lost communication with electric auxiliary brake ECU

19 brands affected · Description from Toyota data.

Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · Powertrain: engine, transmission and emissions

Safety: This code relates to the braking system. Have braking checked promptly.

1What it means in plain English

This code is in the fuel and air metering range, which includes fuel-pressure and camshaft-timing faults.

2Common causes

  1. Dirty or faulty mass air flow sensor
  2. Vacuum or intake air leak
  3. Weak fuel pump or clogged fuel filter
  4. Faulty fuel injector
  5. Faulty oxygen sensor
  6. Wiring or connector fault

3Can I drive?

Caution · drive with care

The braking system may be affected. Have it checked promptly; if the pedal feels abnormal, the car pulls when braking, or a brake warning light is on, stop safely.

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 19

BrandCodeDescriptionSystem
Ashok Leyland CVP001FNo description available Powertrain
BAIC MotorP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
BYDP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
CheryP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
DFFSP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
DFFXP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
DFXKP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
EOBDP001F'A'-kamaxelprofilaktuator 'A'-styrkrets hög bank 2 BrandPowertrain
GeelyP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
GMP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
Great WallP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
HafeiP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
HondaP001FNo description available Powertrain
HyundaiP001FNo description available Powertrain
Land RoverP001F'A' Camshaft Profile Control Circuit High Bank 2 BrandPowertrain
PeugeotP001FNo description available Powertrain
SaabP001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
MG (SAIC)P001F'A' Camshaft Profile Control Circuit/High Bank 2 BrandPowertrain
ToyotaP001FLost communication with electric auxiliary brake ECU 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 P001xx codes.

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