Fault code lookup

PowertrainP04FF

Caution

Severity: Caution - get it checked when you can

Catalyst Heater Circuit Performance Bank 2

5 brands affected · Description from Land Rover data.

Key terms: Catalytic converter: cleans the exhaust gases · EGR: exhaust gas recirculation, which cuts harmful gases · EVAP: the system that traps fuel vapour · Oxygen sensor: measures oxygen in the exhaust gas · Bank 2: the side of the engine containing cylinder 2 · Powertrain: engine, transmission and emissions

1What it means in plain English

This range covers emissions control (EGR, EVAP, oxygen sensors and the catalytic converter), but some manufacturers also use P04 codes for oil-pressure, brake-fluid and coolant-level warnings.

2Common causes

  1. Clogged or faulty EGR valve
  2. EVAP system leak (hoses, canister, fuel cap)
  3. Faulty oxygen sensor
  4. Ageing catalytic converter
  5. Low oil, brake fluid or coolant (on some models)
  6. Wiring or connector fault

3Can I drive?

Caution · drive with care

Do not assume this code is safe to drive. Check the description: if it names oil pressure, brake fluid, coolant, or a brake fault, stop safely and have it diagnosed before driving. Emissions-only codes (EGR, EVAP, catalyst) should still be checked before an emissions or roadworthiness inspection.

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 5

BrandCodeDescriptionSystem
Ashok Leyland CVP04FFNo description available Powertrain
EOBDP04FFKatalysatorvarmekrets ytelse bank 2 BrandPowertrain
GeelyP04FFLongitudinal Acceleration Sensor Fault BrandPowertrain
IsuzuP04FFNo description available Powertrain
Land RoverP04FFCatalyst Heater Circuit Performance Bank 2 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

  • P04F0 Fuel evaporation system
  • P04F1 Remove the right door spring lock (position switch or actuator circuit)
  • P04F2 Remove the right door spring lock (position switch or actuator circuit)
  • P04F3 Right side door lock actuator circuit failure
  • P04F4 Remove the left door spring lock (position switch or actuator circuit)
  • P04F5 Remove the left door spring lock (position switch or actuator circuit)
  • P04F6 Left door locking actuator circuit failure
  • P04F7 Catalyst heater circuit high bank 2
  • P04F8 Catalyst heater circuit intermittent bank 1
  • P04F9 Catalyst heater circuit intermittent bank 2
  • P04FA EGR 'A' control temperature too high
  • P04FB Crankcase Ventilation Hose Connection Sensor Range/Performance

Browse Pxxx codes or P04Fxx codes.

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