U0489 Bmw 228 OBD Code

OBD/2 U0489 error code description and symptoms.

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code U0489

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

U0489 Bmw 228 Error Code Repair Process :

If your cooling fan 2 control circuit malfunction 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 U0489 and engine control unit are in charge of monitoring a bunch of different cooling fan 2 control circuit malfunction, and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Easy)
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Repair Time (20 Min.)
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Cost Prediction : $ 40-75

Common Causes of Bmw 228 U0489 OBD2 Code

A common cause of code U0489 is the failure of Cooling Fan 2 Control Circuit Malfunction, but there are several other possible causes as well, such as ;
Wrench Tool U0489 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.

U0489 code for other Bmw cars

You can view according U0489 DTC for your car model. We selected several models to see obd2 solutions click and view it.

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

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