Lexus NX: Brake

 Extension Module Malfunction 2 (B1556)

DESCRIPTION These DTCs are stored when a malfunction occurs in the Navigation ECU. DTC No. Detection Item DTC Detection Condition Trouble Area B1556 Extension Module Malfunction 2 When any of the following conditions is met: Internal hard drive malfunction EEPROM error Storag

 Lost Communication with Cruise Control Front Distance Range Sensor Single Sensor or Center Missing Message (U023587)

DESCRIPTION The forward recognition camera is connected to the millimeter wave radar sensor assembly via the CAN communication line. When the signal from the millimeter wave radar sensor assembly is interrupted, the forward recognition camera outputs U023587. DTC No. Detection Item DTC Detect