P20FB Mercedes Cl 55 OBD Code

OBD/2 P20FB error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as P20FB. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for P20FB

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

P20FB Mercedes Cl 55 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P20FB light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If fuel restriction condition so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the fuel restriction condition.

Common Causes of Mercedes Cl 55 P20FB OBD2 Code

A common cause of code P20FB is the failure of Fuel Restriction Condition, but there are several other possible causes as well, such as ;

EVAP system hose leaking
1Camshaft Position Sensor circuit poor electrical connection
Faulty variable valve timing (VVT)
Engine Control Module (ECM)

P20FB is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P20FB Mercedes Cl 55 OBD Code

P20FB Mercedes Cl 55 Error Code Repair Process :

Common Causes of Mercedes Cl 55 P20FB OBD2 Code

P20FB code for other Mercedes cars