Toyota Yaris: Front Radar Sensor System / Diagnostic Trouble Code Chart

Toyota Yaris XP210 (2020-2026) Reapir and 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

C1A8749

Microwave Integrated Circuit (VCO Circuit) in Front Radar Sensor Internal Electronic Failure

C1A8887

Microwave Integrated Circuit to Antenna in Front Radar Sensor Missing Message

C1A8987

Antenna to Microwave Integrated Circuit in Front Radar Sensor Missing Message

C1A8C08

Main Microcomputer in Front Radar Sensor Bus Signal / Message Failure

U030051

Internal Control Module Software Incompatibility Not Programmed

U030057

Internal Control Module Software Incompatibility Invalid/Incompatible Software Component

U032251

Software Incompatibility with Body Control Module Not Programmed

U032257

Software Incompatibility with Body Control Module Invalid/Incompatible Software Component

    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...

    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 DTC C1A1100...

    Other information:

    Toyota Yaris XP210 (2020-2026) Owner's Manual: Fuel Economy Data Reset and Trip Meter (TRIP A) Synchronization (Linking)


    Because the average fuel economy indication on the instrument cluster display is linked with the “Average Fuel Economy History” (Current) indication on the center display, when one is reset the other is also reset. In addition, switching between reset and no reset of the average fuel economy indication on the instrument cluster display and the “Average Fuel Economy History” (Current) indication on the center display when resetting the trip meter (Trip A) is possible...

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Removal


    REMOVAL CAUTION / NOTICE / HINT CAUTION: Never perform work on fuel system components near any possible ignition sources. Vaporized fuel could ignite, resulting in a serious accident. Do not perform work on fuel system components without first disconnecting the cable from the negative (-) auxiliary battery terminal...

    Categories

    Break-In Period

    No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.

    Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.

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