U21AU DTC For Ford 49
Ford 49 Engine Specifications:
| Engine Type : | Multi-Cylinder Engine |
| Cylinder Type : | W-Type Engine |
| Engine Air Intake Process : | Turbocharged Engine |
Your Ford 49 engine control system detects a problem, the computer stores the diagnostic trouble
code U21AU in its memory.
To figure out what is wrong with your vehicle you must first extract the U21AU DTC For Ford 49.
On 1999 and later U21AU Ford 49 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.
U21AU Ford 49 DTC Meaning
| U |
Network Code - Problem is climate control system, lighting, airbags, etc. |
| 2 |
MFG - Manufacturer Specific |
| 1 |
Fuel And Air Metering |
| A |
BBV Sensor Circuit Low Voltage |
| U |
TFP Valve Position Switch-Drive Without Drive Ratio |
There are currently two main types of cylinder deactivation used today, depending on the type of engine. U21AU Ford 49 code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.
You can also check other Ford car models :
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The listed Ford models will give information about U21AU DTC.
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