P24C7Particulate Matter Sensor Temperature Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P24C7 checks whether the temperature the particulate matter sensor reports fits the exhaust around it. Ford's 2023 diesel summary does an offset test after a cold soak of at least 6 hours, flagging more than 45 °C against the mean of the exhaust temperature sensors, and a dynamic test while driving that fails below -150 or above 60 °C against a model. VW's 2014 Touareg list uses 60 K and -100 K. GM's 18OBDG04 table sets it at more than 100 °C deviation in 200 of 250 samples (Type B) and names a damaged sensor or extra harness resistance as causes. Mazda treats it as a two-cycle code on the CX-5 SKYACTIV-D 2.2 (01-005-22); Ford 18-2225 and GM coverage 16018 replace the sensor. P24C6 is the electrical fault.
- What you may notice
- Malfunction indicator lamp on
- Particulate filter monitor does not complete
- Likely causes
- LikelySensor element damaged or temperature track drifted
- PossibleExtra resistance between sensor and sensor control unit
- RareFaulty exhaust temperature sensor used as reference
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €150 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.