Fault codes › P04B8

P04B8

Generic code
Free on OBD DashX

Want real-world data on P04B8?

See which problems come with P04B8, how often it shows up in other vehicles, and how to fix it — step by step.

  • Real-world fix data
  • How often it happens
  • Step-by-step repairs
See P04B8 on OBD DashX No sign-up needed · available in 10 languages

iWhat P04B8 means

  • Fuel Fill Door Position Sensor/Switch Circuit

!Possible symptoms

  • Check and reset the fuel fill door position sensor/switch
  • Inspect the wiring and connections related to the fuel fill door position sensor/switch for any damage or loose connections
  • Replace the fuel fill door position sensor/switch if necessary
  • Inspect and clean the fuel fill door area and ensure it is properly aligned and functioning correctly

?Possible causes

  • Faulty or malfunctioning fuel fill door position sensor/switch
  • Loose or damaged wiring connections related to the fuel fill door position sensor/switch circuit
  • Issues with the fuel fill door itself, such as being stuck or not closing properly
  • Electrical issues, such as a blown fuse or relay, affecting the fuel fill door position sensor/switch circuit
  • ECU (Engine Control Unit) or PCM (Powertrain Control Module) malfunction related to the fuel fill door position sensor/switch circuit

✓Possible solutions

  • Malfunction indicator lamp (MIL) illumination
  • Difficulty or inability to open the fuel fill door
  • Inaccurate fuel level reading on the dashboard
  • Stalling or hesitation during acceleration
  • Decreased fuel efficiency
Free on OBD DashX

P04B8 on OBD DashX

Real-world causes, how often this code shows up, and the fix — step by step.

Open P04B8 No sign-up needed · available in 10 languages

Search fault codes

Scan your own car

Read and clear fault codes, live data and service resets with the CaRPM app.