OBD-II code · Powertrain (generic)
P04CC Fuel Fill Door Open Request Sensor or Switch Circuit Intermittent or Erratic
Same as P04C8 with intermittent or erratic signal - typically a connector or harness fault. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P04CC?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyIntermittent contact at connector
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1 h
- Emissions test
- Usually unaffected
- Parts involved
- Fuel Fill Door Request Switch, Fuel Fill Door Wiring
Related codes
- P04C9Fuel Fill Door Open Request Performance Stuck Off
- P04CAFuel Fill Door Open Request Sensor or Switch Circuit Low
- P04CBFuel Fill Door Open Request Sensor or Switch Circuit High
- P04CDFuel Fill Door Open Request Sensor or Switch Stuck On
- P04CEEGR Temperature Sensor C Circuit
- P04CFEGR Temperature Sensor C Circuit Range or Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.