Rear View Camera Image Is Not Correctly Displayed[Vehicles Without MMCS]
Rear view camera image is not correctly displayed. [Vehicles without MMCS]
CAUTION:
Before replacing the rear view camera or interior mirror, ensure that the power supply circuit, the ground 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 [CVT] is "R" (Reverse) position, the rear view camera, the interior mirror, the wiring harness, connectors, backup light switch [M/T] or transmission range switch [CVT] may be defective.
NOTE:
If the indicator on the interior mirror is illuminated in orange but the monitor is not displayed, this is not a malfunction as the monitor has been set to always stay OFF.
PROBABLE CAUSES
- Damaged harness wires and connectors
- Malfunction of the backup light switch[ M/T]
- Malfunction of the transmission range switch[ CVT]
- Malfunction of the rear view camera
- Malfunction of the interior mirror
DIAGNOSIS
STEP 1. Check the interior mirror.
Check the illumination condition of the indicator.
(1)Turn the ignition switch to the "ON" position.
(2)Move the shift lever [M/T] or selector lever [CVT] to the "R" (Reverse) position.
(3)Check that the indicator of the interior mirror illuminates.
Q. Is the check result normal?
YES Go to Step 2.
NO Go to Step 4.
STEP 2. Check the interior mirror.
Check the illumination condition of the indicator.
(1)Turn the ignition switch to the "ON" position.
(2)Move the shift lever [M/T] or selector lever [CVT] to the "R" (Reverse) position.
(3)Check that the indicator of the interior mirror illuminates in green.
Q. Is the check result normal?
YES Go to Step 20.
NO Go to Step 3.
STEP 3. Check the interior mirror.
Check that the rear view screen is displayed on the monitor of the interior mirror.
(1)Turn the ignition switch to the "ON" position.
(2)Move the shift lever [M/T] or selector lever [CVT] to the "R" (Reverse) position.
(3)Press the switch of the interior mirror and check that the rear view screen is displayed.
NOTE:
The illumination color of the indicator of the interior mirror changes from orange to green.
Q. Is the check result normal?
YES Go to Step 20.
NO Go to Step 4.
STEP 4. Using scan tool MB991958, read the ETACS-ECU diagnostic trouble code.
(1)Operate scan tool MB991958 to read the ETACS-ECU option coding information Programming and Relearning).
(2)Check if the diagnostic trouble code is set to the ETACS-ECU.
Q. Is the DTC set?
YES Troubleshoot the ETACS-ECU (Refer to Electronic Time and Alarm Control System (ETACS)), and then go to Step 5.
NO Go to Step 5.
STEP 5. Using scan tool MB991958, check data list.
Check the input signal of ACC relay.
- Turn the ignition switch to the "ACC" position.
OK: Normal condition is displayed.
Q. Is the check result normal?
YES Go to Step 6.
NO Refer to CAN Bus Diagnostics Chart.
STEP 6. Using scan tool MB991958, check data list.
Check if ETACS-ECU related signal is set.
- Turn the ignition switch to the "ON" position.
OK: Normal condition is displayed.
Q. Is the check result normal?
YES Go to Step 7.
NO Refer to Electronic Time and Alarm Control System (ETACS).
STEP 7. Using scan tool MB991958, check data list.
Check if ETACS-ECU related signal is set.
- Turn the ignition switch to the "ON" position.
- Shift lever[ M/T] or selector lever[ CVT] is "R" (Reverse) position.
OK: Normal condition is displayed.
Q. Is the check result normal?
YES Go to Step 8.
NO Go to Step 12.
STEP 8. Check the inside rear view mirror assembly connector E-17 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q. Is inside rear view mirror assembly connector E-17 in good condition?
YES Go to Step 9.
NO Repair or replace the damaged component(s). Harness Connector Inspection.
STEP 9. Check the wiring harness between inside rear view mirror assembly connector E-17 (terminal 1) and ETACS-ECU connector C-415 (terminal 9).
- Check the power supply lines (battery power supply) for open circuit and short circuit.
NOTE:
Also check intermediate connector C-226 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-226 is damaged, repair or replace the connector as described in Harness Connector Inspection.
Q. Is the wiring harness between inside rear view mirror assembly connector E-17 (terminal 1) and ETACS-ECU connector C-415 (terminal 9) in good condition?
YES Go to Step 10.
NO Repair the wiring harness.
STEP 10. Check the ground circuit to the interior mirror. Measure the resistance at inside rear view mirror assembly connector E-17 (terminal 4).
(1)Disconnect inside rear view mirror assembly connector E-17, and measure the resistance available at the wiring harness side of the connector.
(2)Measure the resistance between E-17 (terminal 4) and ground.
OK: The resistance should be 2ohms or less.
Q. Is the measured resistance 2ohms or less?
YES Go to Step 18.
NO Go to Step 11.
STEP 11. Check the wiring harness between inside rear view mirror assembly connector E-17 (terminal 4) and ground.
- Check the ground wire for open circuit.
Q. Is the wiring harness between inside rear view mirror assembly connector E-17 (terminal 4) and ground in good condition?
YES The trouble can be an intermittent malfunction NO Repair the wiring harness.
STEP 12. Check ETACS-ECU connector C-412 and backup light switch connector B-109 [M/T] or transmission range switch connector B-122 [CVT] for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q. Are ETACS-ECU connector C-412 and backup light switch connector B-109[ M/T] or transmission range switch connector B-122[ CVT] in good condition?
YES Go to Step 13.
NO Repair or replace the damaged component(s). Harness Connector Inspection.
STEP 13. Check the wiring harness between ETACS-ECU connector C-412
(terminal 4) and backup light switch connector B-109 (terminal 2) [M/T] or transmission range switch connector B-122 (terminal 3) [CVT].
- Check the communication lines for open circuit and short circuit.
NOTE:
Also check intermediate connector C-28 and A-17 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-28 and A-17 is damaged, repair or replace the connector as described in Harness Connector Inspection Harness Connector Inspection.
Q. Is the wiring harness between ETACS-ECU connector C-412 (terminal 4) and backup light switch connector B-109 (terminal 2)[ M/T] or transmission range switch connector B-122 (terminal 3)[ CVT] in good condition?
YES Go to Step 14.
NO Repair the wiring harness.
STEP 14. Check ETACS-ECU connector C-403 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q. Is ETACS-ECU connector C-403 in good condition?
YES Go to Step 15.
NO Repair or replace the damaged component(s). Harness Connector Inspection.
STEP 15. Check the wiring harness between ETACS-ECU connector C-403
(terminal 2) and backup light switch connector B-109 (terminal 1) [M/T] or transmission range switch connector B-122 (terminal 9) [CVT].
- Check the communication lines for open circuit and short circuit.
NOTE:
Also check intermediate connector A-17 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector A-17 is damaged, repair or replace the connector as described in Harness Connector Inspection Harness Connector Inspection.
Q. Is the wiring harness between ETACS-ECU connector C-403 (terminal 2) and backup light switch connector B-109 (terminal 1)[ M/T] or transmission range switch connector B-122 (terminal 9)[ CVT] in good condition?
YES [CVT] : Go to Step 16.
YES [M/T] : Go to Step 17.
NO Repair the wiring harness.
STEP 16. Check the transmission range switch and the control cable.
Check that the transmission range switch and the control cable are adjusted correctly
Adjustments [CVT].
Q. Is the check result normal?
YES Go to Step 17.
NO Adjust the transmission range switch and the control cable.
STEP 17. Check the backup light switch [M/T] or transmission range switch [CVT].
- Check the continuity of the backup light switch[M/T] Inspection[ M/T].
- Check for continuity of the transmission range switch Adjustments[ CVT].
Q. Is the check result normal?
YES The trouble can be an intermittent malfunction How to Cope With Intermittent Malfunctions).
NO Replace the transmission range switch.
STEP 18. Check ETACS-ECU connector C-413 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q. Is ETACS-ECU connector C-413 in good condition?
YES Go to Step 19.
NO Repair or replace the damaged component(s). Harness Connector Inspection.
STEP 19. Check the wiring harness between ETACS-ECU connector C-413
(terminal 2) and inside rear view mirror assembly connector E-17 (terminal 2).
- Check the communication lines for open circuit and short circuit.
NOTE:
Also check intermediate connector C-26 and C-226 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-26 and C-226 is damaged, repair or replace the connector as described in Harness Connector Inspection.
Q. Is the wiring harness between ETACS-ECU connector C-413 (terminal 2) and inside rear view mirror assembly connector E-17 (terminal 2) in good condition?
YES Go to Step 20.
NO Repair the wiring harness.
STEP 20. Check rear view camera connector G-08 and inside rear view mirror assembly connector E-17 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q. Are rear view camera connector G-08 and inside rear view mirror assembly connector E-17 in good condition?
YES Go to Step 21.
NO Repair or replace the damaged component(s). Harness Connector Inspection.
STEP 21. Check the wiring harness between rear view camera connector G-08 (terminal 3, 6, 1, 4) and inside rear view mirror assembly connector E-17 (terminal 5, 6, 12, 11).
- Check the communication lines for open circuit and short circuit.
NOTE:
Also check intermediate connector G-02, C-17, C-132, C-101 and C-226 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector G-02, C-17, C-132, C-101 and C-226 is damaged, repair or replace the connector as described in Harness Connector Inspection Harness Connector Inspection.
Q. Is the check result normal?
YES Go to Step 22.
NO Repair the wiring harness.
STEP 22. Trouble symptom recheck.
Check that the display of rear view camera is shown normally.
Q. Is the check result normal?
YES The trouble can be an intermittent malfunction NO Replace the rear view camera temporarily and go to Step 23.
STEP 23. Trouble symptom recheck.
Check that the display of rear view camera is shown normally.
Q. Is the check result normal?
YES Replace the rear view camera.
NO Replace the interior mirror.