Inspection Procedure 3: Rear view camera image is not correctly displayed. <Vehicles with smartphone link display audio>


caution Before replacing the smartphone link display audio, ensure that the power supply circuit, the earth circuit, and the communication circuit are normal (Check that the voltage is 10 V or more).

COMMENTS ON TROUBLE SYMPTOM


When the screen of rear view camera is not shown even if the shift lever <M/T> or selector lever <A/T> is "R" (Reverse) position, the rear view camera, the smartphone link display audio, the wiring harness, connectors, back-up lamp switch <M/T>, inhibitor switch <A/T> may be defective.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. Check the smartphone link display audio operation.


Check if the smartphone link display audio operates normally and the sound is output.

Q. Is the check result normal?

Go to Step 2.

Troubleshoot the smartphone link display audio (Refer to ).

STEP 2. Confirmation the service mode.



  1. Display the "Vehicle Signal Info" screen (Refer to ).
  2. Move the shift lever <M/T> or selector lever <A/T> to the "R" (reverse) position.
  3. Check that "Reverse" is "ON."

Q. Is the check result normal?

Go to Step 5.

Go to Step 3.

STEP 3. Check the back-up lamp switch <M/T> or inhibitor switch <A/T>.


Check the continuity of the back-up lamp switch <M/T> or inhibitor switch <A/T>. (Refer to GROUP 22G - Transmission or GROUP 23A - On-vehicle service, Inhibitor switch continuity check)

Q. Is the check result normal?

Go to Step 4.

Replace the back-up lamp switch <M/T> or inhibitor switch <A/T>.

STEP 4. Check of short to power supply, short to earth, and open circuit in REV line between smartphone link display audio connector and back-up lamp switch <M/T> or inhibitor switch <A/T> connector.


Q. Is the check result normal?

Go to Step 7.

Repair the connector(s) or wiring harness.

STEP 5. Confirmation the service mode.



  1. Display the "Communication Check" screen (Refer to ).
  2. Check that "Rear Camera" is "OK."

Q. Is the check result normal?

Go to Step 7.

Go to Step 6.

STEP 6. Check of short to power supply, short to earth, and open circuit in CACC, CGND, CDET, CMP- and CMP+ line between smartphone link display audio connector and rear view camera connector.


Q. Is the check result normal?

Go to Step 7.

Repair the wiring harness.

STEP 7. Trouble symptom recheck.


Check that the display of rear view camera is shown normally.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions).

Replace the rear view camera temporarily and go to Step 8.

STEP 8. Trouble symptom recheck.


Check that the display of rear view camera is shown normally.

Q. Is the check result normal?

Replace the rear view camera.

Replace the smartphone link display audio.