P3856 Mercedes Cls 320 OBD Code

OBD/2 P3856 error code description and symptoms.

The Transmission Range Sensor (also referred to as the PRNDL input an/or neutral safety switch) tells the transmission control module (TCM) an the engine control module (PCM) that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc. It is attached directly to the manual valve of transmission, so when the shift lever is moved from park to drive, the Transmission Range Sensor communicates this critical information to the above mentioned vehicle control module systems.

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

P3856 Mercedes Cls 320 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P3856 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 air suspension lf air spring solenoid output circuit open 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 air suspension lf air spring solenoid output circuit open.

Common Causes of Mercedes Cls 320 P3856 OBD2 Code

A common cause of code P3856 is the failure of Air Suspension LF Air Spring Solenoid Output Circuit Open, but there are several other possible causes as well, such as ;

Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Faulty ignition coil (s)
Faulty variable valve timing (VVT)
Missing or loose fuel cap

P3856 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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P3856 Mercedes Cls 320 OBD Code

P3856 Mercedes Cls 320 Error Code Repair Process :

Common Causes of Mercedes Cls 320 P3856 OBD2 Code

P3856 code for other Mercedes cars