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U2409 Engine Trouble Code

Meaning of U2409 engine trouble code is a kind of network trouble code and U2409 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,200. Taking your car into a shop will cost you around $210 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

U2409 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for U2409 code is occuring now you should check U2409 repair processes.
Now don't ask yourself; What should you do with U2409 code ?
The solution is here :

U2409 Possible Solution:

U2409 Engine

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

U2409 Code Meaning :

U 2 4 0 9
OBD-II Diagnostic Network (U) Trouble Code For Engine Fuel And Air Metering (Injector Circuit Malfunctions Only) O2 Sensor Heater Circuit Malfunction Cold Start Injector 1 Malfunction Reverse Input Circuit

Regarding the U2409 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

U2409 OBD-II Diagnostic Network (U) Trouble Code Description

U2409 engine trouble code is about Reverse Input Circuit.

Main reason For U2409 Code

The reason of U2409 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

U2409 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.