P24DAParticulate Matter Sensor Exhaust Sample Error Bank 1
- 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
- P24DA checks that the particulate matter sensor actually samples exhaust gas, which is how the system detects a sensor that has been pulled out, sits in a blocked protection tube or is mounted wrongly. Ford's 2023 diesel summary runs it once per drive in protective heating mode and fails it if the summed sensor voltage change during exhaust flow changes stays under 0.5 V, over about 3 minutes. GM's 25OBDG04A table watches filtered heater power, sets the code below 1.66 and rates it Type A, so the lamp comes on after one trip. Bulletin 18-2225 lists P24DA among the codes cured by a new sensor on 2017–2018 Super Duty diesels. Because a sensor outside the exhaust would hide a failed filter, the code counts as emissions-relevant; P2002 reports the filter itself.
- What you may notice
- Malfunction indicator lamp on
- Particulate filter monitor does not complete
- Likely causes
- LikelyProtection tube clogged
- PossibleSensor removed from the exhaust or installed wrongly
- PossibleSensor no longer responding to exhaust flow
- 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.