P1488
Particulate Matter Sensor Protection Tube Performance
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Problems with diesel particulate filter regeneration
- Unstable engine idling
Causes
- Sensor protection tube clogged
- Mechanical damage to the tube
- Particulate filter sensor malfunction
- Problems with the sensor electrical circuit
- Contact contamination or corrosion
How to Fix
- Check the condition of the sensor protective tube
- Clean or replace the protective tube
- Check the functionality of the diesel particulate filter sensor
- Check the integrity of the sensor electrical circuit
- Clean sensor contacts and connectors