B153A Diagnostic Trouble Code

B153A 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 B153A diagnostic trouble code may include:

Hesitation upon acceleration
Excessive exhaust leak
Rich or lean exhaust
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)
Some aftermarket accessories and performance modifications

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. 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. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio.

Process Tips

Diagnostic trouble code B153A 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 B153A.

Fortunately, B153A is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B153A Trouble Code For Specific Cars

B153A Maserati 150 Transmission Automatic 4-Wheel Drive Indicator (Lamp) Circuit Failure
B153A Ferrari 328 Insufficient Engine Speed Increase During Self Test
B153A Mercedes C 240 ABS Inlet Valve Coil LF Circuit Open
B153A Datsun Pulsar HO2S Heater Control Circuit (Bank 2 Sensor 3)
B153A Zhonghua Coupe
B153A Mercedes Cl 600 ABS Inlet Valve Coil RF Circuit Short To Battery
B153A Toyota Ist Oil Level Switch Circuit Short To Ground