P05BD Diagnostic Trouble Code

P05BD is a kind of OBD-II Diagnostic P-Powertrain 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 P05BD diagnostic trouble code may include:

Reduction in engine performance, especially at low RPM levels
Vacuum leak on the engine
Diminished fuel efficiency
Poor fuel economy

Possible Causes :

Dirty air cleaner element Damaged DPF
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.
Faulty IMRC actuator/sensor

Repair Processes :

Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors. 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 P05BD 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 P05BD.

Fortunately, P05BD is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P05BD Trouble Code For Specific Cars

P05BD Ford Tickford Mirror Switch Assembly Circuit Failure
P05BD Chevrolet Model EGI Mini - MAF Failed Open Circuit
P05BD Alfa Romeo 164 ABS Power Relay Coil Open Circuit
P05BD Ford Desert Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
P05BD Db Hbr HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
P05BD Mini Paceman ASM Mode Circuit Intermittent
P05BD Ford Corcel MAF Sensor Intermittent/ Check of all OBDII Systems Not Complete