Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Diagnosis System

DIAGNOSIS SYSTEM

CHECK FOR DTCs (USING SYSTEM CHECK MODE SCREEN)

HINT:

  • When system self-diagnosis DTCs cannot be output due to a malfunction that is preventing diagnosis mode from being started or the multi-display from displaying, read the DTCs using the GTS.
  • Depending on the multi-display settings, the background will remain started even when the ignition switch is turned off. For that reason, check the multi-display setting before performing an inspection.

    Click here

(a) Start diagnosis and display the "Service Menu" screen.

(b) Select "Failure Diagnosis" on the service menu screen to display the failure diagnosis screen.

(c) Select "System Check" of the failure diagnosis screen to display the system check mode screen.

System Check Mode Screen Description

Display

Content

*a: Device Name List

Displays the components names, including additional devices (the physical address is displayed if the name is unknown)

*b: Check Result

Displays the inspection result of connected devices

*c: Optional Device Name List

Displays the components names, including aftermarket devices

*d: Memory Clear

Delete current DTCs and confirmed DTCs (press and hold for 3 seconds or more)

*e: Recheck

Performs a check again

(1) Confirm that each of the following connected devices are displayed:

Name

Component

Connection Method

AVN

Radio and display receiver assembly

-

DSP-AMP*1

Stereo component amplifier assembly

AVC-LAN

IF-BOX_USB

Stereo jack adapter assembly

USB

DCM*2

Telematics transceiver

USB

  • *1: for 9 Speakers
  • *2: w/ Telematics Transceiver

HINT:

  • When diagnosis starts, the system check mode screen is displayed and the check is performed.
  • System check mode displays the inspection results screen based on the response for each device during "system inspection instruction", "system inspection result demand", etc., and "Normal Diagnosis Notice", notifications.
  • The displayed screen is an example only. The actual device name displayed on the screen may differ depending on the connected device (dealer installed options, etc.).

(2) CHECK SYSTEM CHECK RESULTS (AVC -LAN/USB/LOCAL BUS CONNECTED DEVICES)

Check result

Meaning

*1: When the "DETAIL" button is pressed, the system transitions to the unit check mode screen.

*2: If "NCON" is displayed for all AVC-LAN connected devices or all AVC-LAN connected devices are not displayed, refer to the troubleshooting procedure for AVC-LAN malfunction.

Click here

OK

No DTCs are stored

DETAIL

(*1)

DTCs are stored

NCON (*2)

  • A device that was previously registered to the system is not responding during registration
  • Cannot confirm a connection of a device that was previously registered to the system

NRES

No response of diagnosis information

Device name and/or system check result cannot be displayed for AVC-LAN*2/USB/LOCAL BUS CONNECTED DEVICES

No history of a device being registered to the system, and no response during the diagnosis check

(d) Unit Check Mode

(1) When "DETAIL" is displayed on the system check mode inspection results, the system transitions to the unit check mode screen when pressed.

(2) Confirm and record the DTCs

Unit Check Mode Screen Description

Display

Content

*a: Device name

Target device name

*b: History DTC

Displays stored DTCs (up to 6 items) for the target device

*c: Latest

An "X" is displayed for the target device when latest DTCs (latest malfunction in current trip) exist

*d: Confirm

An "X" is displayed for the target device when confirmed DTCs (diagnosis codes that have been confirmed up until the current time) exist

*e: Time of occurrence

Displays the time that the DTC was stored

*f: Code CLR

Clears DTC information of the target device and clears the display

NOTICE:

A maximum of 6 codes are stored for the radio and display receiver assembly. When it is suspected that more than 6 codes are output, confirm the DTCs using the GTS.

HINT:

Unit check mode screen is updated once per second.

CLEAR DTC (USING SYSTEM CHECK MODE SCREEN)

(a) Clear the DTCs

(1) Select "Code CLR" on the unit check mode screen (press and hold for 3 seconds or more) and clear the DTCs.

ENTER DIAGNOSTIC MODE

HINT:

  • When system self-diagnosis DTCs cannot be output due to a malfunction that is preventing diagnosis mode from being started or the multi-display from displaying, read the DTCs using the GTS.
  • Enter diagnostic mode by performing one of the following methods.

(a) Start method 1

(1) Using the GTS, display the diagnostic mode window.

Body Electrical > Navigation System > Utility

Tester Display

Diagnostic Mode

(2) When diagnosis starts, the "Service Menu" screen is displayed.

(b) Start method 2

(1) Ensure that the vehicle is stopped.

(2) Turn the ignition switch to ON.

(3) Turn off the multi-display.

(4) Turn off the audio of the radio and display receiver assembly.

(5) Flick the multi-display 5 times from left to right as shown in the illustration.

(6) Flick the multi-display 5 times from right to left as shown in the illustration.

HINT:

Make sure to complete the operation within 15 seconds of performing the initial flick from left to right.

(7) When diagnosis starts, the service menu screen is displayed.

HINT:

If diagnosis does not start due to a failed operation, turn the display on then off and perform the procedure from the start. (Only turning the audio of the radio and display receiver assembly from off to on is not a valid method)

DIAGNOSTIC MODE SCREEN TRANSITION

(a) Service Menu

CANCEL DIAGNOSTIC MODE

HINT:

There are 2 methods to cancel diagnosis

(a) Cancellation method 1

(1) Press and hold the VOL switch for 3 seconds or more to restart the system.

(b) Cancellation method 2

(1) Turn the ignition switch off.

SERVICE MENU

HINT:

The service menu screen can be used to perform malfunction diagnosis for each device, confirm functions and information, and collect data.

(a) Failure Diagnosis

Failure Diagnosis Screen Display Contents

Display

Details

Proceed to

System Check

Display the names of devices connected to the system, and display current and confirmed DTCs as diagnosis results for those devices.

Diagnosis Recorder

"Bluetooth" connection history and Wi-Fi connection history can be confirmed

-

HINT:

Each failure diagnosis screen is created by the radio and display receiver assembly.

(1) Diagnosis Recorder

Diagnosis Recorder Screen Description

Display

Details

Proceed to

Delete REC DATA

Recorded history data can be cleared

-

Recording ON/OFF

When performing a "Bluetooth" trace or Wi-Fi trace, the recorder function can be set to off

-

BT cmc Trace output

"Bluetooth" connection history can be confirmed

Wi-Fi cmc Trace output

Wi-Fi connection history can be confirmed

HINT:

Each diagnosis recorder screen is created by the radio and display receiver assembly.

(b) Function Check/Setting I

Function Check/Setting I Screen Description

Display

Content

Proceed to

Panel&Steering Switch

Checks the operation of the panel switch and steering switch

Touch Switch Check

Checks the operation of the touch switch of the multi-display

Microphone Check

Checks the connection status of the microphone to the radio and display receiver assembly

System Sensors Check*1

  • Displays GNSS related information
  • Sets GNSS date and time settings
  • Displays information regarding each sensor in the radio and display receiver assembly

GNSS Check*2

  • Displays GNSS related information
  • Sets GNSS date and time settings
  • Displays information regarding each sensor in the radio and display receiver assembly

Vehicle Signal

Performs an inspection of vehicle side signal received by the radio and display receiver assembly

HF Voice Quality Setting

HF Voice Quality Setting

Camera Setting*3

Performs adjustment of parking assist monitor system

  • *1: w/ Navigation Function
  • *2: w/o Navigation Function
  • *3: w/ Parking Assist Monitor System

HINT:

Each function check/setting I screen is created by the radio and display receiver assembly.

(c) Service Information

HINT:

The service information screen can be used to confirm information and read the memory.

Service Information Screen Description

Display

Content

Proceed to

VUI Information

Displays information regarding voice recognition

Memory point backup

Performs memory read using the GTS

-

Version Information

Displays connected device version information

-

APP distribution Info

Displays in-vehicle device ID, device identification ID, distribution application PF version, registered user information, etc.

-

Repro info

Displays in-vehicle device ID, SCOMO ID, etc.

-

HINT:

Each service information screen is created by the radio and display receiver assembly.

(1) APP distribution Info

APP distribution Info Screen Description

Item

Content

in-vehicle ID

Displays in-vehicle device ID

Model discernment ID

Displays model discernment ID

APP distribution PF version

Displays platform version that the application uses

Connection Server

This item is displayed but is not used

User registration

User registration information is displayed

(2) Repro info

Repro Info Screen Display Information

Display

Details

In-vehicle ID

Displays in-vehicle device ID of radio and display receiver assembly

SCOMO ID

This item is displayed but is not used

Server

This item is displayed but is not used

(d) Product Information

Product Information Screen Description

Display

Content

VIN

Displays VIN

Product Number (AVN)

Displays serial number of the radio and display receiver assembly

Product Number (Ext Box)

This item is displayed but is not used

HU ID

Displays serial number of the radio and display receiver assembly

Chip serial No. (AVN)

Displays IC serial number of the radio and display receiver assembly

Chip serial No. (Ext Box)

This item is displayed but is not used

DCM IMEI

Displays telematics transceiver IMEI

DCM ICCID

Displays telematics transceiver ICCID

DCM MSISDN

Displays telematics transceiver MSISDN

DCM Contract status

Displays telematics transceiver contract status

HELPNET ID

Displays telematics transceiver HELPNET ID

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