U229C Trouble Code

View U229C obd/2 error code description and symptoms. U229C engine photo

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.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

Difficulty Level (Expert)
Level
Repair Time (35 Min.)
Time
Cost Prediction : $ 40-75

U229C Error Code Repair Process :

If your speed wheel sensor rf input short circuit to ground check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system U229C and engine control unit are in charge of monitoring a bunch of different speed wheel sensor rf input short circuit to ground, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool U229C 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.

Common Causes of U229C

A common cause of code U229C is the failure of Speed Wheel Sensor RF Input Short Circuit To Ground, but there are several other possible causes as well, such as ;

U229C code for all cars

You can view according U229C DTC for your car model. We selected several models to see obd2 solutions click and view it.

+U229C Renault Master 2 +U229C Allard J2 +U229C Citroen C8 +U229C Marmon V16 +U229C Mercedes-benz 400

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