B1272 Diagnostic Trouble Code

B1272 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 B1272 diagnostic trouble code may include:

Corroded or damaged connector
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Lack of power
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

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.
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. If you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs.

Process Tips

Diagnostic trouble code B1272 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 B1272.

Fortunately, B1272 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1272 Trouble Code For Specific Cars

B1272 Vauxhall Victor Pressure Control Solenoid Malfunction
B1272 Tvr Tamora Power Steering Failure
B1272 Mitsubishi Outlander Aux Heater Blower Fan Circuit Open
B1272 Volkswagen Derby RF LAMP LOW BEAM CIRCUIT Failure
B1272 Studebaker Sky Hawk Lamp Warning Relay Circuit Short To Battery
B1272 Alpine A108-904 Air Bag Passenger Circuit Failure
B1272 Volvo V60 SCP (J1850) Invalid or Missing Data for External Access (Doors)