B101D Diagnostic Trouble Code

B101D 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 B101D diagnostic trouble code may include:

Faulty O2 Sensor
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Engine surge

Possible Causes :

Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code B101D 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 B101D.

Fortunately, B101D is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B101D Trouble Code For Specific Cars

B101D Lotus Elise S2 111s Traction Control Disable Switch Circuit Short to Battery
B101D Holden Maloo Power Supply #1 Circuit Short to Ground
B101D Ktm Duke 200 Servo Motor Potentiometer Defrost Circuit Open
B101D Italdesign Nazca
B101D Nissan Mm Compressor Failure
B101D Buick Skylark Damper High Side Rear Circuit Short To Battery
B101D Pontiac Rageous First Gear Switch Circuit Malfunction