P24C3Exhaust Gas Temperature Measurement System - Multiple Sensor Correlation Bank 2
- 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
- P24C3 is the bank 2 counterpart of P24C2 and only makes sense on engines whose two cylinder banks feed separate exhaust strings, each with its own set of temperature probes. The controller has found that the probes of the second string disagree among themselves beyond what the operating state allows. No manufacturer documents P24C3 publicly. Ford's 2023 diesel summary shows how such a group check works for bank 1: a key-on comparison after a long soak and a model comparison while driving, each probe weighed against the others. CARB requires that temperature sensors used for aftertreatment control be checked for rationality. The individual bank 2 probes have their own codes P2082, P2086, P2467 and P2474. A test with all probes cold after an overnight stop usually shows the outlier.
- What you may notice
- Malfunction indicator lamp on
- Particulate filter regeneration may be inhibited
- Likely causes
- LikelyOne bank 2 temperature probe has drifted and no longer matches the others
- PossibleContact resistance in a bank 2 probe connector or harness
- RareExhaust leak near one probe cooling its tip
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.