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 Abarth Mono A/C Cycling Period Too Short
B1536 Audi 100 Alarm Panic Input Circuit Short To Ground
B1536 Peugeot 12 Hp Dynamic Stability Control Valve LF Circuit Failure
B1536 Maserati Quattroporte Transmission Fluid Temperature Sensor Circuit Intermittent
B1536 Chevrolet Silverado 2 ELC System 2 Fault
B1536 Maserati 3200 Gt Transmission Component Slipping/ Transmission Mechanical Transfer Case 4x4 Switch Circuit Failure
B1536 Rover 216 IDM Failure