P7B18 Mercedes Clk 270 OBD Code

OBD/2 P7B18 error code description and symptoms.

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code P7B18

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

P7B18 Mercedes Clk 270 Error Code Repair Process :

If your vehicle failed a P7B18 test and the P7B18 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look : Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Common Causes of Mercedes Clk 270 P7B18 OBD2 Code

A common cause of code P7B18 is the failure of , but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty Crankshaft Position Sensor (POS)
Faulty starter motor
Fuel injectors may be faulty

P7B18 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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P7B18 Mercedes Clk 270 OBD Code

P7B18 Mercedes Clk 270 Error Code Repair Process :

Common Causes of Mercedes Clk 270 P7B18 OBD2 Code

P7B18 code for other Mercedes cars