B1052 Diagnostic Trouble Code

B1052 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 B1052 diagnostic trouble code may include:

Reduction in engine performance, especially at low RPM levels
Vacuum leak on the engine
Diminished fuel efficiency
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

Fuel with a large percentage of sulfur will clog the DPF quickly
The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Dirty air cleaner element Damaged DPF

Repair Processes :

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. Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications.

Process Tips

Diagnostic trouble code B1052 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 B1052.

Fortunately, B1052 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1052 Trouble Code For Specific Cars

B1052 Volvo 66
B1052 Dodge Daytona Ignition Coil K Primary/Secondary Circuit Malfunction
B1052 Mazda B4000 Transmission Transfer Case Differential Lock-Up Feedback Switch Open Circuit
B1052 Riley Stelvio Hydraulic Oil Temperature Sensor Circuit
B1052 Ford 427 LF CORNER LAMP OUTPUT Ckt Short to Battery
B1052 Chevrolet Sail EIC Switch-2 Assembly Circuit Short To Battery
B1052 Ford Lotus-cortina Mirror Driver Up Circuit Open