U2143 BMW Fault Code
Check U2143 OBD Fault Code ReasonThe issue covered by the bulletin involves a power steering noise/whine or fluid leak from the power steering pump, gear or high pressure side power steering hose during extreme low outdoor temperature operation.
U2143 Code Symptoms :
When you turn on the ignition, the Service Engine Soon or Check Engine U2143 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the U2143!
Diagnosis And Repairing U2143
U2143 OBD2 reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.
How to fix U2143 code ?
- Continuous oil flow to the VCT piston chamber
- Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
- EVAP system hose leaking
- Insufficient cylinders compression
