P04A0

Exhaust Pressure Control Valve "B" Range/Performance

DTC P04A0, sometimes indicated as P04A000 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the auxiliary emissions system causing exhaust pressure control valve "b" range/performance.

The exhaust pressure control valve "B" range/performance fault code means that the valve is not working properly. There are several possible causes for this, including a faulty valve, a clogged or dirty valve, or a problem with the electrical system that powers the valve.
If you have this fault code, you will need to have the valve checked to determine the exact cause. If the valve is found to be defective, it will need to be replaced. If the problem is with the electrical system, the issue will need to be diagnosed and fixed.

  • P04A0: Pressure Control Valve B Range/Performance
  • P04A0: Exhaust Pressure Control Valve "B" Range/Performance
  • P04A0: Exhaust gas pressure control valve B – circuit range/performance
  • P04A0 00: Exhaust gas pressure control valve B - circuit range/performance

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • 2069484/3 - ENGINE AND ENGINE COOLING
    BENTLEY: Exhaust flap - dtcs evident - P048D - P048B - P04A8 - P04A0 evident - v8 kovomo. Customer statement - engine warning lamp is illuminated within the driver instrument panel (dip) workshop findings one or more of the following diagnostic t
  • 2069484.2 - ELECTRICAL SYSTEM
    BENTLEY: Exhaust flap dtcs evident - P048D - P048B - P04A8 - P04A0 - v8 kovomo customer statement: -engine warning lamp is illuminated within the driver instrument panel (dip)
  • 2069484.1 - ENGINE AND ENGINE COOLING
    BENTLEY: Exhaust flap - dtcs evident - P048D - P048B - P04A8 - P04A0 evident - v8 kovomo. Customer statement: - engine warning lamp illuminated within the driver instrument panel (dip) workshop findings one or more of the following diagnostic tro
  • A2622482058998_4 - ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
    AUDI: This bulletin contains repair instructions from the exhaust system at idle speed dtcs P047600, P048C00, P04A000, or P301B00 are stored in the ecm.
  • A2621452058998_3 - ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
    AUDI: This bulletin contains repair instructions from the exhaust system at idle speed dtcs P047600, P048C00, P04A000, or P301B00 are stored in the ecm.
  • A2621442058998_2 - ENGINE AND ENGINE COOLING
    AUDI: This bulletin contains repair instructions from the exhaust system at idle speed dtcs P047600, P048C00, P04A000, or P301B00 are stored in the ecm.
  • A2620392058998_1 - UNKNOWN OR OTHER
    AUDI: This bulletin contains repair instructions for exhaust system noises with one of the following dtcs stored: dtc P047600 or dtc P04A000, dtc P048C00 or dtc P301B00.
Previous Code: P049F | Next Code: P04A1