P0B09 Mercedes Citan OBD Code

OBD/2 P0B09 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.

A good starting point in your diagnosis is checking all system fuses and fusible links. This can be done using the DVOM on the voltage setting. You will want to test the fuses with circuits loaded. Some fuses will appear normal until a load is placed on their respective circuit; at which point they will fail. This has been the cause of many 'phantom malfunctions'. Consult your vehicle information source for fuse and fusible link locations. If all fuses are in working order, you may want to check TCM relay operation by swapping identical relays. Usually the horn relay, starter relay, fuel pump relay, air conditioning clutch relay, and controller relays are similar enough in design to swap for diagnostic purposes.

P0B09 Mercedes Citan Error Code Repair Process :

If your passenger side check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P0B09 and engine control unit are in charge of monitoring a bunch of different passenger side, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mercedes Citan P0B09 OBD2 Code

A common cause of code P0B09 is the failure of Passenger Side, 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
Engine Control Module (ECM)
Intake Valve Timing Control Solenoid Valve harness is open or shorted
EVAP canister or fuel tank leaks

P0B09 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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P0B09 Mercedes Citan OBD Code

P0B09 Mercedes Citan Error Code Repair Process :

Common Causes of Mercedes Citan P0B09 OBD2 Code

P0B09 code for other Mercedes cars