Inspection Procedure 1: Rear view camera image is not correctly displayed <Vehicles with display audio>.
caution
Before replacing the rear view camera or 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 sift lever <M/T> or selector lever <CVT, A/T> is "R" (Reverse) position, the rear view camera, the radio and CD player, the wiring harness, connectors, inhibitor switch may be defective.
PROBABLE CAUSES
Damaged harness wires and connectors
Malfunction of the rear view camera
Malfunction of the radio and CD player
Malfunction of the inhibitor switch
Malfunction of CAN bus line
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. Confirmation in display audio service mode.
(1)Display the "Vehicle Signal Check" screen (Refer to ).
(2)Move the sift lever <M/T> or selector lever <CVT, A/T> to the "R" (reverse) position.
(3)Check that "Shift Position R" is "ON."
Q.
Is the check result normal?
Go to Step 5
Go to Step 3
STEP 3. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.
Q.
Is the check result normal?
Go to Step 4
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
STEP 4. Check of short to power supply, short to earth, and open circuit in BLP1 line between ETACS-ECU connector and inhibitor switch connector
Q.
Is the check result normal?
Go to Step 7
Repair the connector(s) or wiring harness.
STEP 5. Confirmation in display audio service mode.
(1)Display the "External Device Connection 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, CDET, CGND, 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. 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.
Go to Step 2
Troubleshoot the radio and CD player. (Refer to 
.)