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.
Affected components
- Pm sensor
- Pm sensor module
Common causes
- High likelihood: Internal PM sensor module fault
- Medium likelihood: Module firmware corruption after voltage drop
- Low likelihood: Module software outdated, reflash may resolve
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.