Lexus NX: 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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 Vehicle Control History

VEHICLE CONTROL HISTORY NOTICE: When checking the Vehicle Control History, make sure to record the output codes. Then, clear the Vehicle Control History (RoB) and check it again. CHECK VEHICLE CONTROL

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

DESCRIPTION When an internal malfunction is detected in the millimeter wave radar sensor assembly, a DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A8C46 M

 Front Radar Sensor Optical Axis Misalignment Malfunction (C1A1100)

DESCRIPTION The millimeter wave radar sensor assembly performs self-diagnosis to check for misalignment of its beam axis. If misalignment is detected, the millimeter wave radar sensor assembly stores

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 Precaution

PRECAUTION PRECAUTIONS FOR HANDS FREE POWER BACK DOOR (w/ Hands Free Power Back Door) (a) In the following situations, the hands free power back door may operate unintentionally if the electrical transmitter key sub-assembly is near or within the rear door exterior detection area: HINT: Refer to sma

 Short in P/T Squib (RH) Circuit (B1900-B1903)

DESCRIPTION The front pretensioner RH circuit consists of the airbag ECU assembly and front seat outer belt assembly RH. This circuit instructs the SRS to deploy when deployment conditions are met. These DTCs are stored when a malfunction is detected in the front pretensioner RH circuit. DTC No.

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