Powertrain
generic / SAE
P22F1
Particulate Matter Sensor Heater Performance
The particulate matter (PM) sensor heater on diesel after-DPF systems does not reach or hold the calibrated operating temperature within the expected time. Without proper heating the PM sensor cannot be regenerated and read correctly.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number2 / F1
Possible causes
- PM sensor aging high
- Increased heater resistance medium
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–1500 €
- Estimated time: 1–4 h
- Component: pm sensor
- Component: pm heater circuit
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012