B245B Diagnostic Trouble Code

B245B 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 B245B diagnostic trouble code may include:

Fuel pressure too low
Rich or lean exhaust
Diminished fuel efficiency
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Faulty IMRC actuator/sensor

Repair Processes :

Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic 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.

Process Tips

Diagnostic trouble code B245B 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 B245B.

Fortunately, B245B is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B245B Trouble Code For Specific Cars

B245B Citroen Big Fifteen Front Doppler Sensor Circuit Failure
B245B Oldsmobile O4 Damper Circuit Failure
B245B Alfa Romeo Long Air Bag Crash Sensor #1 Feed/Return Circuit Short To Ground
B245B Pontiac Rageous First Gear Switch Circuit Malfunction
B245B American Gadabout Air Suspension Height Sensor Power Circuit Failure
B245B Shelby Super Cars Ultimate Intake Air Temperature Circuit Low Input
B245B Toyota Dyna O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)