Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Diagnosis System



(a) When troubleshooting a vehicle with a diagnosis system, the only difference from the usual troubleshooting procedure is connecting the GTS to the vehicle and reading various data output from the clearance warning ECU assembly.

The clearance warning ECU assembly stores DTCs when the ECU detects a malfunction in the ECU itself or in its circuits.

To check the DTCs, connect the GTS to the DLC3 on the vehicle. The GTS makes it possible to clear the DTCs, activate the various actuators, and check the freeze frame data and Data List.


(a) Check the DLC3.

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     Data List / Active Test

    DATA LIST / ACTIVE TEST CHECK USING GTS (DATA LIST) (a) Data List (1) Read the Data List according to the display on the GTS. Body Electrical > Clearance Warning > Data List Test

     Diagnostic Trouble Code Chart

    DIAGNOSTIC TROUBLE CODE CHART Intuitive Parking Assist System DTC No. Detection Item Link C161504 Clearance Warning ECU System Internal F


    VEHICLE CONTROL HISTORY (RoB) NOTICE: When checking the vehicle control history, first store the output history and then check the history. CHECK VEHICLE CONTROL HISTORY (a) Following the instru


     Internal Control Module Random Access Memory (RAM) Error Data Memory Failure (P060444)

    MONITOR DESCRIPTION The engine stop and start ECU continuously monitors its internal memory status. This self-check ensures that the engine stop and start ECU is functioning properly. The engine stop and start ECU memory status is diagnosed by internal mirroring of the main CPU and sub CPU to detect

     Diagnostic Trouble Code Chart

    DIAGNOSTIC TROUBLE CODE CHART Power Back Door System DTC No. Detection Item Link B222049 Back Door Motor Internal Electronic Failure B222631 PBD Unit Pulse Sensor LH Circuit No Signal B222731 PBD Unit Pulse Sensor RH Circuit No Signal

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