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U3115 BMW Fault Code

Check U3115 OBD Fault Code Reason
Description:

The Camshaft Position sensor will signal the Engine Control Module when the #1 cylinder is ready for the spark plug to fire (top-dead-center on compression stroke).

The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

U3115 Code Symptoms :

See U3115 in engine

The U3115 Check Engine lamp is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. U3115 diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks with your car's computers to find out exactly what's prompting the light to turn on.

Diagnosis And Repairing U3115

Parts or components should not be replaced with reference to only a U3115 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

How to fix U3115 code ?

  • Exhaust gas leaks
  • Faulty Crankshaft Position Sensor (POS)
  • Faulty variable valve timing (VVT)
  • Oil flow restriction in the oil passages or the VCT valve body

On some transmissions, such as automated manual transmissions or automatic transmissions with manual mode, the GSP switch lets the TCM know whether or not the driver has selected automatic or manual function.

On manual transmissions, the GSP switch informs the TCM which gear the driver is selecting, and may function as a neutral safety switch, depending on system design. The TCM also uses the gate select position switch to monitor transmission operation. For example, if the driver selects manual mode and selects 3rd gear on an automatic transmission, the TCM may monitor speed sensors to detect clutch and brake slippage.

BMW Cars that meet U3115 error