Ford Police Interceptor Utility U0121 Engine Error Code

When you check Ford Police Interceptor Utility car engine light came on code U0121 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Ford manufacturer may have a different definition for the U0121 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

On 1999 and later U0121 Ford Police Interceptor Utility 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.

Ford Police Interceptor Utility U0121 OBD-II Diagnostic Network (U) Trouble Code Description Ford Police Interceptor Utility car U0121 OBD-II Trouble Code Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and comm Reason For Ford Police Interceptor Utility U0121 Code The reason of Ford Police Interceptor Utility U0121 OBD-II Engine Error Code is U0121 Lost Communication With Electronic Brake Control Module.

When you turn on the ignition, the Service Engine Soon or Check Engine U0121 Ford Police Interceptor Utility 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 U0121 Ford Police Interceptor Utility 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 !

Ford Police Interceptor Utility U0121 Possible Solution :

What does fault code U0121 mean for Ford Police Interceptor Utility ? What does a diagnostic reading U0121 mean for Ford Police Interceptor Utility ? How to fix OBD2 Code U0121 for Ford Police Interceptor Utility ? What do we know about U0121 code for Ford Police Interceptor Utility ?