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Audi A5 U1123 Engine Error Code

When you check Audi A5 car engine light came on code U1123 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Audi manufacturer may have a different definition for the U1123 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1123 Audi A5 Code Clear

A good ground connection is also extremely important. U1123 Audi A5 engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit. Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance (any resistance will lower circuit voltage).

U1123 Code Reason

Audi A5 U1123 OBD-II Diagnostic Network (U) Trouble Code Description

U1123 SCP (J1850) Invalid or Missing Data for Odometer so you have to check ODB-II Engine Error Code list.

Reason For Audi A5 U1123 Code

The reason of Audi A5 U1123 OBD-II Engine Error Code is U1123 SCP (J1850) Invalid or Missing Data for Odometer.

There are currently two main types of cylinder deactivation used today, depending on the type of engine. U1123 Audi A5 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.

Audi A5 U1123 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.

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