Rolls Royce Silver Shadow U0121 Engine Error Code

When you check Rolls Royce Silver Shadow car engine light came on code U0121 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Rolls Royce 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.

To solve U0121 Rolls Royce Silver Shadow problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

Rolls Royce Silver Shadow U0121 OBD-II Diagnostic Network (U) Trouble Code Description Rolls Royce Silver Shadow 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 Rolls Royce Silver Shadow U0121 Code The reason of Rolls Royce Silver Shadow U0121 OBD-II Engine Error Code is U0121 Lost Communication With Electronic Brake Control Module.

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. U0121 Rolls Royce Silver Shadow 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.

Rolls Royce Silver Shadow U0121 Possible Solution :

What does fault code U0121 mean for Rolls Royce Silver Shadow ? What does a diagnostic reading U0121 mean for Rolls Royce Silver Shadow ? How to fix OBD2 Code U0121 for Rolls Royce Silver Shadow ? What do we know about U0121 code for Rolls Royce Silver Shadow ?