U0602

Lost Communication With Particulate Filter Pressure Sensor B

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–89 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Problems with diesel particulate filter regeneration
Possible transition to emergency mode

Causes

Open or short circuit in the sensor circuit
Particulate filter pressure sensor B fault
Poor contact in the sensor connector
Problems with the engine ECU
Wiring harness damage

How to Fix

Check the integrity of the sensor wires and connectors
Check the power supply and ground of the sensor
Test DPF pressure sensor B
Check connections to the ECU
Replace sensor if necessary

Related codes

U0601 U0603 P2452