P25BA

Regeneration Control Switch Circuit/Open

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Inability to start DPF regeneration
Error message on the dashboard

Causes

Broken wires in the control circuit
Regeneration switch malfunction
Poor contact in connectors
Wiring harness damage
Engine control unit malfunction

How to Fix

Check the integrity of the control circuit
Inspect connectors and contacts for corrosion
Check the functionality of the regeneration switch
Scan the system for other errors
If necessary, replace the switch or repair the wiring

Related codes

P25BB P25BC P2463