Navigation System Symptom Troubleshooting - Rearview camera image does not change when selecting different views
Rearview camera image does not change when selecting different views
NOTE:
Check the vehicle 12 volt battery condition first.
You can select three different rearview camera angles for backing up. If there is no camera image on the display, go to Rearview camera image does not come on or work properly troubleshooting.
Check the connectors for poor connections or loose terminals.
1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Shift the transmission to R position/mode.

?3.
Operate the audio-navigation unit to see if the rearview image changes between the wide view, the normal view, and the top down view.

Does the rearview camera image change properly?

     
YES
     
     
     
Intermittent failure, the system is OK at this time.?
     
NO
     
     
     
The failure is duplicated, go to step 2.
2.
Shorted wire check (CAMERA BIT0 line, CAMERA BIT1 line):

Shorted wire check (CAMERA BIT0 line, CAMERA BIT1 line)
?1.
Shift the transmission to P position/mode.

?2.
Turn the vehicle to the OFF (LOCK) mode.

?3.
Disconnect the following connectors.
Audio-navigation unit connector G (24P)
Rearview camera 12P connector

?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Audio-navigation unit connector G (24P): disconnected
 
Rearview camera 12P connector: disconnected
Test point 1
Audio-navigation unit connector G (24P) No. 5
Test point 2
Body ground

Test point 1
Audio-navigation unit connector G (24P) No. 18
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
Repair a short to body ground in the wire(s) between the rearview camera and the audio-navigation unit.?
     
NO
     
     
     
The CAMERA BIT0 and the CAMERA BIT1 wires are not shorted to ground. Go to step 3.
3.
Shorted wire check (CAMERA BIT0 line to CAMERA BIT1 line):

Shorted wire check (CAMERA BIT0 line to CAMERA BIT1 line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Audio-navigation unit connector G (24P): disconnected
 
Rearview camera 12P connector: disconnected
Test point 1
Audio-navigation unit connector G (24P) No. 5
Test point 2
Audio-navigation unit connector G (24P) No. 18

Is there continuity?

     
YES
     
     
     
Repair a short in the wires between the rearview camera and the audio-navigation unit.?
     
NO
     
     
     
The CAMERA BIT0 and the CAMERA BIT1 wires are not shorted. Go to step 4.
4.
Open wire check (CAMERA BIT0 line, CAMERA BIT1 line):

Open wire check (CAMERA BIT0 line, CAMERA BIT1 line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Audio-navigation unit connector G (24P): disconnected
 
Rearview camera 12P connector: disconnected
Test point 1
Audio-navigation unit connector G (24P) No. 5
Test point 2
Rearview camera 12P connector No. 2


Is there continuity?

     
YES
     
     
     
The CAMERA BIT0 and the CAMERA BIT1 wires are OK. Go to step 5.
     
NO
     
     
     
Repair an open in the wire(s) between the rearview camera and the audio-navigation unit.?
5.
Rearview camera check (substitution):

Rearview camera check (substitution)
?1.
Substitute a known-good rearview camera.

?2.
Reconnect all the connectors, and recheck.

Does the symptom go away?

     
YES
     
     
     
     
NO