B3887 Mercedes Cl 420 OBD Code

OBD/2 B3887 error code description and symptoms.

The input turbine speed sensor detects rotation of the input shaft of the input shaft speed sensor transmission. The computer uses that information, along with the output shaft speed sensor to determine if the transmission is operating according to plan. If the computer detects a difference between the input shaft speed , and the expected output shaft speed, it will adjust transmission pump pressure to prevent clutch disc slip. If adding pressure doesn't solve the problem, it will set a trouble code.

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.

B3887 Mercedes Cl 420 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine B3887 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 ignition key-in circuit short to battery 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 ignition key-in circuit short to battery.

Common Causes of Mercedes Cl 420 B3887 OBD2 Code

A common cause of code B3887 is the failure of Ignition Key-In Circuit Short To Battery, but there are several other possible causes as well, such as ;

Faulty Air Flow Meter
1Camshaft Position Sensor circuit poor electrical connection
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Exhaust gas leaks

B3887 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

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

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B3887 Mercedes Cl 420 OBD Code

B3887 Mercedes Cl 420 Error Code Repair Process :

Common Causes of Mercedes Cl 420 B3887 OBD2 Code

B3887 code for other Mercedes cars