P2998 Mercedes A 170 OBD Code

OBD/2 P2998 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.

P2998 Mercedes A 170 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P2998 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 turn signal / hazard power feed 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 turn signal / hazard power feed circuit short to battery.

Common Causes of Mercedes A 170 P2998 OBD2 Code

A common cause of code P2998 is the failure of Turn Signal / Hazard Power Feed 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
Faulty select solenoid
Missing or loose fuel cap

P2998 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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P2998 Mercedes A 170 OBD Code

P2998 Mercedes A 170 Error Code Repair Process :

Common Causes of Mercedes A 170 P2998 OBD2 Code

P2998 code for other Mercedes cars