OBD-II code · Powertrain (generic, extended)
P24CC Reductant Tank Cap Switch Circuit Range or Performance
Same as P24CB with input in plausible range yet not matching driver action.
Is it safe to drive with P24CC?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyContact drifted
Symptoms
- Check engine light or NOx warning on
- AdBlue/DEF level or quality warning
- Possible no-start countdown after ignore period
- Failed emissions inspection (NOx)
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1 h
- Emissions test
- Likely to fail
- Parts involved
- Reductant Tank Cap Switch
Related codes
- P24C9Particulate Matter Sensor Temperature Circuit High
- P24CAParticulate Matter Sensor Temperature Circuit Intermittent
- P24CBReductant Tank Cap Switch Circuit
- P24CDReductant Tank Cap Switch Circuit Low
- P24CEReductant Tank Cap Switch Circuit High
- P24CFReductant Tank Cap Switch Circuit Intermittent or Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.