OBD-II code · Powertrain (generic, extended)
P24A0 Closed Loop Particulate Filter Regeneration Control At Limit Temperature Too Low
With regeneration running closed-loop the controller is at maximum heat-input demand yet cannot raise EGT to setpoint - typical for a load-poor drive cycle.
Is it safe to drive with P24A0?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyDrive cycle load too low
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0–1 h
- Emissions test
- Likely to fail
- Parts involved
- Dpf B1
Related codes
- P249DClosed Loop Reductant Injection Control At Limit Flow Too Low
- P249EClosed Loop Reductant Injection Control At Limit Flow Too High
- P249FExcessive Time To Enter Closed Loop Particulate Filter Regeneration Control
- P24A1Closed Loop Particulate Filter Regeneration Control At Limit Temperature Too High
- P24A2Particulate Filter Regeneration Incomplete Bank 1
- P24A3Particulate Filter Restriction Soot Accumulation Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.