B1836 Diagnostic Trouble Code

B1836 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 B1836 diagnostic trouble code may include:

Fuel pressure too high
Diminished fuel efficiency
Rich or lean exhaust
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.
Faulty IMRC actuator relay (if equipped)

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for.

Process Tips

Diagnostic trouble code B1836 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 B1836.

Fortunately, B1836 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1836 Trouble Code For Specific Cars

B1836 Dellow Mk Hydraulic Pressure Unit Loss of Pressure
B1836 Maserati 3.7 Transmission Clutch Interlock Safety Switch Short Circuit To Battery
B1836 Jaguar Xj-6 Seat Driver Front Up Switch Circuit Short To Ground
B1836 Bmw R 1200 Gs Clutch position ckt short to battery
B1836 Renault Logan Hazard Flash Output Circuit Short To Ground
B1836 Ferrari Tipo Keyless Entry Circuit Short To Ground
B1836 Mcc Fortwo A/C Refrigerant pressure Sensor Circuit High Input