LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2021 >> RX 450h Base >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Cruise Control DTCS >> Front Radar Sensor System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Front Radar Sensor System

FRONT RADAR SENSOR SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Code Description
C1A11-00 Front Radar Sensor Optical Axis Misalignment Malfunction
C1A8C-46 Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure
C1A8D-1C Power Supply Circuit in Front Radar Sensor Circuit Voltage Out of Range
C1A90-00 Malfunction of Millimeter-wave Circuit in Front Radar Sensor
C1A91-00 Malfunction of Acceleration Sensor in Front Radar Sensor
U0104-87 Lost Communication with Cruise Control Module Missing Message
U0305-57 Software Incompatibility with Cruise Control Module Invalid/Incompatible Software Component