P2B9B

Vehicle Conditions Incorrect for Particulate Matter Sensor Regeneration

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$11–56 (est.)

Symptoms

Increased fuel consumption
Reduced engine power
Check Engine light comes on
Possible unpleasant odor from the exhaust system

Causes

Low driving speed
Frequent trips over short distances
Malfunction of exhaust gas temperature sensors
Problems with the fuel injection system

How to Fix

Check exhaust gas temperature sensors
Drive at high speed to force regeneration
Check the fuel injection system
Use a diagnostic scanner to force regeneration
Check the condition of the particulate filter

Related codes

P2B9A P2B9C P2002