U2423 Audi Q5 OBD Code

OBD/2 U2423 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

U2423 Audi Q5 Error Code Repair Process :

The scent may U2423 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U2423, so if the inside of your car accelerometer rear circuit failure as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Audi Q5 U2423 OBD2 Code

A common cause of code U2423 is the failure of Accelerometer Rear Circuit Failure, but there are several other possible causes as well, such as ;

Dirty Oil
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Fuel tank leaking
Faulty Intake Valve Timing Control Solenoid Valve

U2423 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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U2423 Audi Q5 OBD Code

U2423 Audi Q5 Error Code Repair Process :

Common Causes of Audi Q5 U2423 OBD2 Code

U2423 code for other Audi cars