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U1105 Engine Trouble Code

Meaning of U1105 engine trouble code is a kind of network trouble code and U1105 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.

U1105 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 U1105 code is occuring now you should check U1105 repair processes.
Now don't ask yourself; What should you do with U1105 code ?
The solution is here :

U1105 Possible Solution:

U1105 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.

U1105 Code Meaning :

U 1 1 0 5
OBD-II Diagnostic Network (U) Trouble Code For Engine Fuel And Air Metering Fuel Rail/System Pressure - Too High Cold Start Injector 1 Malfunction Crankshaft Position Sensor B Circuit Malfunction

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

U1105 OBD-II Diagnostic Network (U) Trouble Code Description

U1105 engine trouble code is about Crankshaft Position Sensor B Circuit Malfunction.

Main reason For U1105 Code

The reason of U1105 OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.

U1105 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.