5. FUEL INJECTION SYSTEM MXU 500EXi/MXU500i Blinks Failure Fault description Priority Fault management Codes Throttle position sensor 1.Make sure if the connector of Throttle position movement speed sensor is connected correctly. 5 P1122 problem 2.Check if the Throttle position sensor is adjusted. 2 6 P0560 Battery voltage 1 1. Check if the battery voltage is lower or higher. malfunction 2.Check if the charge system is malfunction. Inlet air temperature sensor or electric circuit 7 P0110 Intake air temperature 2 malfunction circuit malfunction 1. Check if the connector of Idle air valve loosen. 2.Check if the resistance of valve is normal. 8 P0410 Idle air valve circuit 2 malfunction Idle speed volume 1.Check if the ISC steps range over 65steps. control range problem 9 P0505 3 1.Check if the connector of Injector is loosen. 2.Check if the ECU send signal to Injector. 10 P0251 Injector or electric 2 3.Check if the power source and resistance of Injector circuit problem are malfunction. 5-12