OBD-II code · Powertrain (generic, extended)
P2AB0 Particulate Matter Sensor Processor Performance
The ECM detects a processing performance fault inside the particulate matter (PM) sensor module. Internal self-tests fail or computed soot mass is implausible.
Is it safe to drive with P2AB0?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyInternal PM sensor module fault
- PossibleModule firmware corruption after voltage drop
- Less likelyModule software outdated, reflash may resolve
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Pm Sensor, Pm Sensor Module
Related codes
- P2AADDiesel Fuel Presence Sensor Range/Performance
- P2AAEDiesel Fuel Presence Sensor Circuit Low
- P2AAFDiesel Fuel Presence Sensor Circuit High
- P2AB1Catalyst Heater Control Module Performance
- P2AB2Catalyst Heater Control Module Supply Voltage
- P2AB3Cold Start Intake Manifold Runner Control Stuck Open Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.