Volkswagen Passat U1112 Engine Error Code
When you check Volkswagen Passat car engine light came on code U1112 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Volkswagen manufacturer may have a different definition for the U1112 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.
On 1999 and later U1112 Volkswagen Passat 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.
Volkswagen Passat U1112 OBD-II Diagnostic Network (U) Trouble Code DescriptionU1112 SCP (J1850) Invalid or Missing Data for Primary Id so you have to check ODB-II Engine Error Code list.
Reason For Volkswagen Passat U1112 CodeThe reason of Volkswagen Passat U1112 OBD-II Engine Error Code is U1112 SCP (J1850) Invalid or Missing Data for Primary Id.
There are currently two main types of cylinder deactivation used today, depending on the type of engine. U1112 Volkswagen Passat 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.
Volkswagen Passat U1112 Possible Solution :
In-line Ford engines, along with those of most other manufacturers, begin the numbering of cylinders at the front and proceed in numerical order toward the back. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine. In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. Other manufacturers sometimes use an alternating pattern in the V-engines.
What does fault code U1112 mean for Volkswagen Passat ?