U0446 DTC For Chevrolet Impala

Chevrolet Impala Engine Specifications:
Engine Type :Multi-Cylinder Engine
Cylinder Type :V-Type Engine
Engine Air Intake Process :Supercharged Engine

Your Chevrolet Impala engine control system detects a problem, the computer stores the diagnostic trouble code U0446 in its memory. To figure out what is wrong with your vehicle you must first extract the U0446 DTC For Chevrolet Impala.

On 1999 and later U0446 Chevrolet Impala 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.

U0446 Chevrolet Impala DTC Meaning

U Network Code - Problem is climate control system, lighting, airbags, etc.
0 SAE - Generic
4 Fuel And Air Metering (Injector Circuit Malfunctions Only)
4 Control Module Throttle Actuator Position Performance
6 Transmission Control Module Reprogrammable Memory

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. U0446 Chevrolet Impala 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.

U0445 DTC (Previous DTC Code) ( Next DTC Code ) U0447 DTC
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