B2539 Diagnostic Trouble Code

B2539 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 B2539 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Dirty air cleaner element Damaged DPF

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. 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. 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.

Process Tips

Diagnostic trouble code B2539 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 B2539.

Fortunately, B2539 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B2539 Trouble Code For Specific Cars

B2539 Delage 3-litre Hydraulic Oil Temperature Sensor Circuit High Input
B2539 Cisitalia 202 Exhaust Valve Control Solenoid Circuit Low (Bank 1)
B2539 Lon Boll 12 Timing Reference High Resolution Signal B Too Few Pulses
B2539 Ford Ka Mirror Driver Right Short To Ground
B2539 Bucciali Tav Cylinder #1 High To Low Side Open
B2539 Lagonda 12 Shift Solenoid D Control Circuit High
B2539 Bmw Serie 2 Active Tourer Clutch Position Sensor Circuit Intermittent Malfunction