B1536 Diagnostic Trouble Code

B1536 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 B1536 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
Diminished fuel efficiency

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)
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. 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.

Process Tips

Diagnostic trouble code B1536 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 B1536.

Fortunately, B1536 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1536 Trouble Code For Specific Cars

B1536 Alfa Romeo Gp159 Air Assist Control Valve Range/Performance
B1536 Lamborghini 400 Shift Solenoid E Stuck On
B1536 Fiat 128 Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
B1536 Playboy Convertible Evaporative Emission Control System Control Valve
B1536 Gordon-keeble Gk Passenger Door Disarm Switch ckt Short to Ground
B1536 Lotec Sirius Torque Converter Clutch Circuit Malfuction
B1536 Porsche 959 Fuel Level Sensor B Circuit Malfunction