Toyota Corolla Cross: Steering Knuckle

 Low Beam LH Circuit Voltage Out of Range (B24441C,B24451C)

DESCRIPTION The BIN resistance is equipped for the purpose of correcting variances in brightness (luminous flux) when the light control LED ECU is energizing the LED with a constant current to illuminate it. Also, it monitors the voltage applied to the BIN resistance in order to detect abnormalitie

 ECU Power Source Circuit

DESCRIPTION When the ignition switch is ON, auxiliary battery voltage is applied to terminal MREL of the ECM through the coil of the EFI-MAIN relay. This causes the EFI-MAIN relay to close, which supplies power to terminal +B of the TCM. WIRING DIAGRAM Refer to DTC U010087. Click here CAU