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U1771 Engine Trouble Code

Meaning of U1771 engine trouble code is a kind of network trouble code and when your car's 'U1771 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

U1771 Fault Symptoms :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for U1771 code is occuring now you should check U1771 repair processes.
Now don't ask yourself; What should you do with U1771 code ?
The solution is here :

U1771 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.

U1771 Code Meaning :

U	1	7	7	1
OBD-II Diagnostic Network (U) Trouble Code For Engine	Fuel And Air Metering	Fuel Rail Pressure Sensor Circuit Malfunction	Cylinder 10 Contribution/balance Fault	Crankshaft Position Sensor A Circuit Low Input

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

U1771 OBD-II Diagnostic Network (U) Trouble Code Description

U1771 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For U1771 Code

The reason of U1771 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

U1771 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.

	Example: 0140