Rear view camera image is not correctly displayed.


caution Before replacing the radio and CD player, 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 selector lever is in the "R" (Reverse) position, the rear view camera, the wiring harness, connectors, inhibitor switch or radio and CD player may be defective.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. Check the radio and CD player operation.


Check if the radio and CD player normally and the sound is output.

Q. Is the check result normal?

Go to Step 2.

Troubleshoot the radio and CD player (Refer to ).

STEP 2. Check the inhibitor switch and the control cable.


Check that the inhibitor switch and the control cable are adjusted correctly (Refer to GROUP 23A - On-vehicle Service .)

Q. Is the check result normal?

Go to Step 3.

Adjust the inhibitor switch and the control cable.

STEP 3. Check the inhibitor switch.


Check the continuity of the inhibitor switch. (Refer to GROUP 23A - On-vehicle Service .)

Q. Is the check result normal?

Go to Step 4.

Replace the back-up lamp switch.

STEP 4. Resistance measurement at rear view camera connector (earth terminal)


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Measure the resistance between the rear view camera connector (earth terminal) and body earth.
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?

Go to Step 6.

Go to Step 5.

STEP 5. Check of open circuit in earth line between rear view camera connector and the body earth


Q. Is the check result normal?

Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).

Repair the connector(s) or wiring harness.

STEP 6. Check of short to power supply, short to earth, and open circuit in CACC, CMP-, CMP+ line between radio and CD player connector and rear view camera connector


Q. Is the check result normal?

Go to Step 7.

Repair the connector(s) or wiring harness.

STEP 7. Check of short to power supply, short to earth, and open circuit in REV line between radio and CD player connector and inhibitor switch connector


Q. Is the check result normal?

Go to Step 8.

Repair the connector(s) or wiring harness.

STEP 8. 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 Malfunction ).

Replace the rear view camera temporarily and go to Step 9.

STEP 9. 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 radio and CD player.