B2572 Diagnostic Trouble Code

B2572 is a kind of OBD-II Diagnostic B-Body Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a B2572 diagnostic trouble code may include:

The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Faulty PCM
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Diminished fuel efficiency

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors.

Process Tips

Diagnostic trouble code B2572 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before B2572.

Fortunately, B2572 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2572 Trouble Code For Specific Cars

B2572 Matra M530 Transmission Neutral Safety Switch Open Circuit
B2572 Osi 850 Door Unlock Disarm Switch Circuit Open
B2572 Voisin C Random/Multiple Cylinder Misfire Detected
B2572 Vaz Calina PRNDL Input #4 Circuit Failure
B2572 Oldsmobile Lss Cylinder Head Temp Sensor Low Input
B2572 Toyota Lite-ace Oil Temperature Sensor Circuit Open
B2572 Pontiac Tempest Four Wheel Drive (4WD) Switch Circuit Low