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

Toyota Yaris XP210 (2020-2024) 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 (2020-2024) Reapir and Service Manual: Starter Inrush Current Reduction Relay Circuit


    DESCRIPTION The starter inrush current reduction relay prevents the auxiliary battery voltage from becoming dropping excessively while the starter assembly is operating. If the auxiliary battery voltage drops below the threshold, stop and start control will be prohibited...

    Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: How To Proceed With Troubleshooting


    CAUTION / NOTICE / HINT HINT: Before performing troubleshooting for the dynamic radar cruise control system, perform troubleshooting for the pre-collision system. Click here *: Use the GTS. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2...

    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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