OBD-II code · Powertrain (generic)
P04C4 Fuel Fill Door Lock Position Sensor Circuit Range or Performance
Same as P04C3 with feedback in plausible range yet not matching the commanded lock state.
Is it safe to drive with P04C4?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor signal offset
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–1.4 h
- Emissions test
- Usually unaffected
- Parts involved
- Fuel Fill Door Lock Position Sensor
Related codes
- P04C1Fuel Fill Door Unlock Control Circuit Low
- P04C2Fuel Fill Door Unlock Control Circuit High
- P04C3Fuel Fill Door Lock Position Sensor Circuit
- P04C5Fuel Fill Door Lock Position Sensor Circuit Low
- P04C6Fuel Fill Door Lock Position Sensor Circuit High
- P04C7Fuel Fill Door Lock Position Sensor Circuit Intermittent or Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.