Inspection Procedure 6: A camera image is displayed when the selector lever is moved to the R position, but it is not switched when the camera switch is pressed.


COMMENT ON TROUBLE SYMPTOM


A camera image is displayed when the selector lever is moved to the R position, but it is not switched when the camera switch is pressed. In this case, the camera input signal system may be defective.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III data list.


Using the camera-ECU service data.

Item No.
 M.U.T.-III display
 Check condition
 Normal condition
5
 Camera switch
 Camera switch: OFF
OFF
Camera switch: ON
 ON

Q. Is the check result normal?

Go to Step 7.

NO <vehicles with display audio or MMCS> : Go to Step 2.

NO <vehicles without display audio and MMCS> : Go to Step 5.

STEP 2. Check the operation of the audio remote control switch.


Check that the audio remote control switch operation normally.

Q. Is the check result normal?

Go to Step 3.

Troubleshoot the audio remote control switch.

STEP 3. Check of short to power supply, short to earth, and open circuit in REM+, REM- line between radio and CD player <vehicles with display audio> or multivision display <vehicles with MMCS> connector and steering wheel remote control switch connector.


Q. Is the check result normal?

Go to Step 4.

Repair the connector(s) or wiring harness.

STEP 4. Check the camera switch (steering wheel remote control switch).


Check the camera switch (Refer to ).

Q. Is the check result normal?

Replace the radio and CD player <vehicles with display audio> or multivision display <vehicles with or MMCS>.

Replace the steering wheel remote control switch.

STEP 5. Check of open circuit in CMSW lines between inside rear view mirror assembly (with integrated monitor) connector and camera-ECU connector.


Q. Is the check result normal?

Go to Step 6.

Repair the connector(s) or wiring harness.

STEP 6. Retest the system.


Check that the multi around monitor operates normally.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction).

Replace the inside rear view mirror assembly (with integrated monitor).

STEP 7. Retest the system.


Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction).

Replace the camera-ECU (Refer to ).