U0403 Engine Trouble Code
Meaning of U0403 engine trouble code is a kind of network trouble code and U0403 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 $2,140 and you can't do it yourself unless you're an experienced mechanic.
U0403 Fault Symptoms :
If one of these reasons for U0403 code is occuring now you should check U0403 repair processes.
Now don't ask yourself; What should you do with U0403 code ?
The solution is here :
U0403 Possible Solution:
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.
U0403 Code Meaning :
|OBD-II Diagnostic Network (U) Trouble Code For Engine||Intake Valve Control Solenoid Circuit Low||O2 Sensor Heater Circuit Malfunction||Cold Start Injector 1 Malfunction||Exhaust Gas Recirculation Sensor B Circuit High|
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.
U0403 OBD-II Diagnostic Network (U) Trouble Code DescriptionU0403 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.
Main reason For U0403 CodeThe reason of U0403 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.
U0403 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.