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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.
 
 
TROUBLESHOOTING HINTS
  • The camera-ECU may be defective
  • The camera switch (steering wheel remote control switch) may be defective
  • The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check data list.
Using the camera-ECU data list.
  • Operate the camera switch.
 
Item No.Scan tool (M.U.T.-IIISE) displayCheck conditionNormal condition
5Camera switchCamera switch: OFF OFF
Camera switch: ONON
Is the check result normal?
Go to Step 5.
: Go to Step 2.
 
STEP 2. Check the operation of the audio remote control switch.
Check that the audio remote control switch operation normally.
Is the check result normal?
Go to Step 3.
Troubleshoot the audio remote control switch (Refer to ).
 
STEP 3. Check of short to power supply, short to ground, and open circuit in REM+, REM- line between multivision display connector and steering wheel remote control switch connector.
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 ).
Is the check result normal?
Replace the multivision display.
Replace the steering wheel remote control switch.
 
STEP 5. Retest the system.
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 camera-ECU (Refer to ).