Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

  • The following inspection procedures for the parking assist monitor system are based on the assumption that the audio and visual system is normal. If the audio and visual system has any malfunction, first proceed with troubleshooting of the audio and visual system.
  • Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the parking assist monitor system may be needed.

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  • The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

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  • After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

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    HINT:

    When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

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HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
General

Symptom

Suspected Area

Link

When the shift position is in R, an image of the area behind the vehicle is not displayed (screen is not black)

Vehicle Signal Check Mode (Reverse Signal)

CAN communication system*1

CAN communication system*2

Hybrid control system*1

-

SFI control system*2

-

Rear television camera assembly

Radio and display receiver assembly

When the shift position is in R, an image of the area behind the vehicle is not displayed (screen is black)

Proceed to "Image from Camera for Parking Assist Monitor is Abnormal"

When the shift position is not in R, an image of the area behind the vehicle is displayed

Vehicle Signal Check Mode (Reverse Signal)

CAN communication system*1

CAN communication system*2

Hybrid control system*1

-

SFI control system*2

-

Radio and display receiver assembly

When the shift position is in R, an image of the area behind the vehicle is displayed and then switches to another image

Vehicle Signal Check Mode (Reverse Signal)

CAN communication system*1

CAN communication system*2

Hybrid control system*1

-

SFI control system*2

-

Radio and display receiver assembly

  • *1: for HEV Model
  • *2: for Gasoline Model
Display Malfunction

Symptom

Suspected Area

Link

Parking assist monitor display malfunction (distortion of the color/screen) occurs continuously

Proceed to "Image from Camera for Parking Assist Monitor is Abnormal"

Parking assist monitor display malfunction (distortion of the color/screen) occurs temporarily

Check the usage conditions (explain to the customer that the display may be temporarily distorted when the vehicle is close to an object that transmits radio waves, such as a telecommunication tower, an airport or a truck equipped with a transceiver)

-

Parking Assist Monitor System Malfunction

Symptom

Suspected Area

Link

Estimated course lines are not displayed

Parking assist monitor screen display mode settings (check that estimated course line display mode is selected)

-

Rear television camera assembly

Radio and display receiver assembly

Steering sensor

The vehicle width guide lines and estimated course lines do not match when the steering wheel is turned to the center position

Check that the rear television camera assembly is correctly installed

Rear television camera assembly

Steering sensor

The guide lines are not displayed even though the back door is closed

Check that the No. 1 luggage compartment light assembly illuminates normally (if not, refer to Lighting System [INT] - Problem Symptoms Table)

Rear television camera assembly

The guide lines remain displayed even though the back door is open

Check that the No. 1 luggage compartment light assembly illuminates normally (if not, refer to Lighting System [INT] - Problem Symptoms Table)

Rear television camera assembly

Guide lines and buttons are not displayed for all parking assist monitor screen display modes.

CAN communication system*1

CAN communication system*2

Proceed to "Luggage Compartment Room Light" in Lighting System (INT)

Rear television camera assembly

The guide lines and buttons remain displayed even though the back door is open.

CAN communication system*1

CAN communication system*2

Proceed to "Luggage Compartment Room Light" in Lighting System (INT)

Rear television camera assembly

When adjusting the camera optical axis, "You can not calibrate the camera when the door is open. Please close the door." is displayed even after the back door has been closed

Check that the No. 1 luggage compartment light assembly illuminates normally (if not, refer to Lighting System [INT] - Problem Symptoms Table)

Rear television camera assembly

"CHK" message(s) are displayed on the signal check screen

Signal check (diagnosis system)

When an image of the area behind the vehicle is displayed, the lines are misaligned (the image from the camera is tilted)

Back camera position setting (calibration)

Rear television camera assembly

  • *1: for HEV Model
  • *2: for Gasoline Model
Others

Symptom

Suspected Area

Link

A switch displayed on the parking assist monitor screen does not respond when pushed, or a switch other than the pushed switch responds.

Proceed to "CHECK TOUCH SWITCH" in Audio and visual system

Rear television camera assembly

Radio and display receiver assembly

A beep sound is not emitted when a switch displayed on the parking assist monitor screen is pushed.

Check the setting on the audio screen (General setting)

-

Proceed to "CHECK TOUCH SWITCH" in Audio and visual system

Rear television camera assembly

Radio and display receiver assembly

The language of the messages displayed on the parking assist monitor screen cannot be changed.

Check the setting on the audio screen (General setting)

-

Rear television camera assembly

Radio and display receiver assembly

The switches displayed on the parking assist monitor screen are grayed out.

Rear television camera assembly

Radio and display receiver assembly

The color of the switches displayed on the parking assist monitor screen are abnormal, or the switches are not dimmed when the headlights are turned on.

Check the setting on the audio screen (Screen adjustment)

-

Proceed to "CHECK TOUCH SWITCH" in Audio and visual system

Rear television camera assembly

Radio and display receiver assembly

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