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U3012 Engine Code Repair

Meaning of U3012 engine trouble code is a kind of network trouble code and when your car's 'U3012 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.

U3012 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 U3012 code is occuring now you should check U3012 repair processes.
Now don't ask yourself; What should you do with U3012 code ?
The solution is here :

U3012 Possible Solution:

U3012 Engine

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

U3012 Code Meaning :

U
OBD-II Diagnostic Network (U) Trouble Code For Engine

3
Ignition System Or Misfire

0
Injector Circuit Malfunction - Cylinders

1
Cold Start Injector 1 Malfunction

2
Crankshaft Position Sensor A Circuit Low Input

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

U3012 OBD-II Diagnostic Network (U) Trouble Code Description

U3012 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For U3012 Code

The reason of U3012 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

U3012 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.