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U0555 Engine Code Repair

Meaning of U0555 engine trouble code is a kind of network trouble code and when your car's 'U0555 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.

U0555 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 U0555 code is occuring now you should check U0555 repair processes.
Now don't ask yourself; What should you do with U0555 code ?
The solution is here :

U0555 Possible Solution:

U0555 Engine

Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. If the change in pressure is outside of the calibration the DTC will set. A/C system mechanical failure Open ACP or VREF circuit A/C sensor damaged A/C system electrical failure A/C clutch always engaged Verify A/C system function, including refrigerant charge.

U0555 Code Meaning :

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

0
Intake Valve Control Solenoid Circuit Low

5
O2 Sensor Heater Circuit Malfunction

5
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

5
Timing Reference High Resolution Signal A Too Many Pulses

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.

U0555 OBD-II Diagnostic Network (U) Trouble Code Description

U0555 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Main reason For U0555 Code

The reason of U0555 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

U0555 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.