OBD Guide
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P04CC

Fuel Fill Door Open Request Sensor/Switch Circuit Intermittent/Erratic

P04CC is an OBD-II diagnostic trouble code meaning: Fuel Fill Door Open Request Sensor/Switch Circuit Intermittent/Erratic. Common causes: malfunction of the sunroof opening request sensor/switch, open or short circuit in wiring harness. Estimated repair cost: $22–56.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Problems with refueling (the hatch may not open automatically)
  • Possible errors related to the EVAP system

Causes

  • Malfunction of the sunroof opening request sensor/switch
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Problems with the sunroof control module

How to Fix

  1. Check the sunroof request sensor/switch for damage.
  2. Inspect the wiring harness and connectors for damage or corrosion.
  3. Check the resistance and voltage in the sensor circuit
  4. Replace sensor or switch if necessary
  5. Clean or replace connectors if corroded

Related codes

P0442P0455P0456

Error P04CC by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P04CC code mean?

P04CC is an OBD-II diagnostic trouble code that indicates: Fuel Fill Door Open Request Sensor/Switch Circuit Intermittent/Erratic

What causes a P04CC error code?

The most common causes of P04CC include: Malfunction of the sunroof opening request sensor/switch; Open or short circuit in wiring harness; Poor contact in connectors; Problems with the sunroof control module.

How do I fix a P04CC diagnostic trouble code?

To fix P04CC: Check the sunroof request sensor/switch for damage.. Inspect the wiring harness and connectors for damage or corrosion.. Check the resistance and voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P04CC?

Yes, but get it checked soon

How much does it cost to fix P04CC?

The estimated repair cost for P04CC is $22–56. Actual cost depends on your vehicle, location, and labor rates.

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