P24D5EVAP System Pressure Sensor/Switch B Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P24D5 is the general circuit code for a second EVAP pressure sensor, called B to tell it apart from the main sensor A (P0450 range). Which sensor is B depends on the maker: Mitsubishi's 2023 Outlander PHEV uses it for an absolute fuel tank pressure sensor on its sealed tank, GM for a canister vapour pressure sensor, and Audi's bulletin 2069531 assigns sensor 2 to the G950 part in the purge path. No manufacturer documents P24D5 itself publicly; all three use the more specific P24D6 to P24D8. CARB requires circuit checks on every EVAP input. A stored P24D5 suggests a fault in the 5 V reference, ground or signal wire of that sensor; until it is fixed the leak or purge diagnostics depending on it are blocked.
- What you may notice
- Malfunction indicator lamp on
- EVAP readiness monitor incomplete
- Likely causes
- LikelyOpen or shorted reference, ground or signal wire of sensor B
- PossibleLoose or corroded connector at sensor B
- PossibleEVAP pressure sensor B failed
- 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: €50 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.