B245D Diagnostic Trouble Code

B245D 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 B245D diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Dirty air cleaner element Damaged DPF

Repair Processes :

Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed.

Process Tips

Diagnostic trouble code B245D 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 B245D.

Fortunately, B245D is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B245D Trouble Code For Specific Cars

B245D Wolseley 14 SCP (J1850) Invalid or Missing Data for Seat Switches
B245D Fiat Regata Lamp Warning Relay Circuit Short To Ground
B245D Toyota Land Cruiser Oil Pressure Switch Failure
B245D Citroen Ln
B245D Porsche 356 Front Lateral Accelerometer Circuit Failure
B245D Hongqi Flagship RF LAMP HIGH BEAM CIRCUIT Failure
B245D Ford Mustang 5 Mirror Passenger Down Circuit Failure