Mazda 3 U2UAU Engine Trouble Code
When your car's 'Mazda 3 U2UAU 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.
Mazda 3 U2UAU Code Meaning :
OBD-II Diagnostic Network (U) Trouble Code For Engine
Fuel And Air Metering (Injector Circuit Malfunctions Only)
Engine Oil Temperature Sensor Malfunction
Cylinder 10 Contribution/balance Fault
Exhaust Gas Recirculation Sensor B Circuit High

When you check Mazda 3 car engine light came on code U2UAU the reason should be . However manufacturer may have a different definition for the U2UAU OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.
U2UAU OBD-II Diagnostic Network (U) Trouble Code Description
U2UAU engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.Reason For U2UAU Code
The reason of U2UAU OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.U2UAU 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.
U2UAE Previous Engine Trouble Code For Mazda 3 | Next Engine Trouble Code For Mazda 3 U3000 |