Lexus NX: Diagnostic Trouble Code Chart

Lexus NX Service Manual / Engine & Hybrid System / Cruise Control / Front Radar Sensor System / Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Front Radar Sensor System

DTC No.	Detection Item	Link
C1A1100	Front Radar Sensor Optical Axis Misalignment Malfunction
C1A8C46	Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure
C1A8D1C	Power Supply Circuit in Front Radar Sensor Circuit Voltage Out of Range
C1A9000	Malfunction of Millimeter-wave Circuit in Front Radar Sensor
C1A9100	Malfunction of Acceleration Sensor in Front Radar Sensor
U010487	Lost Communication with Cruise Control Module Missing Message
U030557	Software Incompatibility with Cruise Control Module Invalid/Incompatible Software Component

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System Description

SYSTEM DESCRIPTION AUTOMATIC LIGHT CONTROL SYSTEM (a) When the headlight dimmer switch is in the AUTO position, the automatic light control system detects ambient light levels and controls the headlights, taillights, front fog lights, clearance lights and license plate lights. LIGHT AUTO TURN-OFF SY

Power Source Mode does not Change to ON (ACC)

DESCRIPTION If the power switch is pressed with the electrical key transmitter sub-assembly in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode. Related Data List and Active Test Items Problem Symptom Data List and Active Test Pow

Lexus NX: Diagnostic Trouble Code Chart

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Vehicle Control History

Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure (C1A8C46,C1A8D1C,C1A9000,C1A9100)

Front Radar Sensor Optical Axis Misalignment Malfunction (C1A1100)

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System Description

Power Source Mode does not Change to ON (ACC)