OBD-II code · Powertrain (generic, extended)
P24B2 Particulate Matter Sensor Circuit Intermittent
Same as P24AE with intermittent or erratic signal. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P24B2?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyIntermittent contact at connector
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–3 h
- Emissions test
- Likely to fail
- Parts involved
- Particulate Matter Sensor
Related codes
- P24AFParticulate Matter Sensor Circuit Range or Performance
- P24B0Particulate Matter Sensor Circuit Low
- P24B1Particulate Matter Sensor Circuit High
- P24B3Particulate Matter Sensor Heater Control Circuit Open
- P24B4Particulate Matter Sensor Heater Control Circuit Range or Performance
- P24B5Particulate Matter Sensor Heater Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.