U0990 DTC For Mercedes S 63

Mercedes S 63 Engine Specifications:
Engine Type :Multi-Cylinder Engine
Cylinder Type :V-Type Engine
Engine Air Intake Process :Turbocharged Engine

Your Mercedes S 63 engine control system detects a problem, the computer stores the diagnostic trouble code U0990 in its memory. To figure out what is wrong with your vehicle you must first extract the U0990 DTC For Mercedes S 63.

On 1999 and later U0990 Mercedes S 63 engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.

U0990 Mercedes S 63 DTC Meaning

U Network Code - Problem is climate control system, lighting, airbags, etc.
0 SAE - Generic
9 Transmission
9 TP Sensor Learn Not Complete
0 Transmission Engaged At High Throttle Angle

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. U0990 Mercedes S 63 code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.

U0989 DTC (Previous DTC Code) ( Next DTC Code ) U0991 DTC
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