Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Diagnostic Trouble Code Chart

Toyota Corolla Cross (2022-2026) Service Manual / ADAS & AD / Advanced Driver Assistance System / Front Radar Sensor System / Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Front Radar Sensor System

DTC No.

Detection Item

DTC Output from

Link

C1A1100

Front Radar Sensor Optical Axis Misalignment Malfunction

Front Radar Sensor

C1A8C04

Main Microcomputer in Front Radar Sensor System Internal Failure

Front Radar Sensor

C1A8C46

Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure

Front Radar Sensor

C1A8D1C

Power Supply Circuit in Front Radar Sensor Circuit Voltage Out of Range

Front Radar Sensor

C1A9000

Malfunction of Millimeter-wave Circuit in Front Radar Sensor

Front Radar Sensor

U010487

Lost Communication with Cruise Control Module Missing Message

Front Radar Sensor

U130C51

Software Incompatibility with Image Processing Module "A" Not Programmed

Front Radar Sensor

U130C57

Software Incompatibility with Image Processing Module "A" Invalid/Incompatible Software Component

Front Radar Sensor

    READ NEXT:

     VEHICLE CONTROL HISTORY (RoB)

    VEHICLE CONTROL HISTORY (RoB) NOTICE: Vehicle control history may be recorded due to the replacement or repair of related parts. When checking the Vehicle Control History, make sure to rec

     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 st

     Main Microcomputer in Front Radar Sensor System Internal Failure (C1A8C04,C1A8C46,C1A8D1C,C1A9000)

    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

    SEE MORE:

     Data List / Active Test

    DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the GTS to read the Data List allows the values or states of sw

     Removal

    REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL) Procedure Part Name Code 1 BACK DOOR TRIM UPPER PANEL ASSEMBLY 64790B - - - 2 BACK DOOR SIDE GARNISH LH 67938A - - - 3 BACK DOOR SIDE GARNISH RH 67937B - -

    © 2020-2026 Copyright www.tcorollacross.com PT NL