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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Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: If the main body ECU (multiplex network body ECU) is replaced, refer to Registration. Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in

Parts Location

PARTS LOCATION ILLUSTRATION *1 COOLING FAN RELAY (FAN NO. 1) *2 COOLING FAN ECU *3 COOLING FAN MOTOR *4 CRANKSHAFT POSITION SENSOR *5 ECM *6 NO. 2 ENGINE ROOM RELAY BLOCK - FAN FUSE *7 NO. 2 COOLING FAN MOTOR *8 INSTRUMENT PANEL JUNCTION BLOCK - ECU-IG NO. 4 F

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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Problem Symptoms Table

Parts Location