B106B Diagnostic Trouble Code

B106B 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 B106B diagnostic trouble code may include:

Possible spark knock (detonation / pre-ignition)
Poor fuel economy
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
Hesitation upon acceleration

Possible Causes :

A plugged converter will cause of host of driveability problems as well as set this code. A severely plugged converter will result in the inability to increase rpm when under load. Look for a code such as P0421 -- catalytic converter efficiency below threshold if the converter indicating a faulty converter.
Dirty air cleaner element Damaged DPF
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

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. 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. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code B106B 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 B106B.

Fortunately, B106B is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B106B Trouble Code For Specific Cars

B106B Mazda Mazda 2 Turbo Pressure Control Solenoid Circuit Malfunction
B106B Tata Indigo Mirror Passenger Vertical Feedback Potentiometer Circuit Open
B106B Belsize 9 Hp Barometer Pressure Circuit Malfunction
B106B Iveco Daily Seat Direction Switch Assembly Circuit Failure
B106B Volkswagen Eurovan Ride Control LF Shock Actuator Circuit Failure
B106B Holden Combo Pedal Position Sensor C Circuit High Input
B106B Daihatsu Fourtrak Gear shift position Fault