B1A3A Diagnostic Trouble Code

B1A3A 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 B1A3A diagnostic trouble code may include:

Faulty PCM
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Poor acceleration
Hesitation upon 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.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code B1A3A 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 B1A3A.

Fortunately, B1A3A is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1A3A Trouble Code For Specific Cars

B1A3A Healey Alvis Passenger Solar Radiation Sensor Circuit Short to Ground
B1A3A Lada Oka Shift Solenoid B Malfunction
B1A3A Gmc Terrain Park Brake Valve Solenoid #1 Sense Input Circuit Short to Gound
B1A3A Mg Va Alternative Fuel Controller
B1A3A Riley Redwing Hydraulic Fluid Pressure/ Flow Circuit Failure
B1A3A Ford Ts50 Misfire Rate Catalyst Damage Fault - Bank 2
B1A3A Glas 2600 PAD Warning Lamp Circuit Short to Battery