Rearview camera image does not come on

NOTE: 

• Check the vehicle 12 volt battery condition first .
• Check the connectors for poor connections or loose terminals.

1. Problem verification

   -1. Turn the vehicle to the ON mode.

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

   Does the center display image change to rearview when the transmission is shifted to R position/mode?

   YES 

   Intermittent failure, the system is OK at this time.

   NO: Display audio type

   The failure is duplicated, go to step 2.

   NO: Color audio type

   The failure is duplicated, go to step 5.

2. System Diagnostic Mode check

   -1. Shift the transmission to P position/mode.

   Go into the System Diagnostic Mode, and use the System Links to check the Rear Wide Camera icon status.

   • With navigation
   • Without navigation 

   Is the Rear Camera icon green?

   YES 

   Go to step 3.

   NO: With navigation

   Go to Navigation Unit DTC 2608 (R-Camera Diag) troubleshooting .

   NO: Without navigation

   Go to Audio Unit DTC 2608 (R-Camera Diag) troubleshooting .

3. Determine possible failure area (BACK LT line, others):

   Go into the System Diagnostic Mode, and use the Vehicle Status to check the BACK signal;

   • With navigation
   • Without navigation 

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

   Does the BACK signal change from [0] to [1] when the transmission is shifted from P position/mode to R position/mode?

   YES 

   Go to step 12.

   NO 

   Go to step 4.

4. Open wire check (BACK LT line)

   -1. Shift the transmission to P position/mode.

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

   -3. Disconnect the following connector.

   Audio-navigation unit connector C (32P) (with navigation)Audio unit connector C (32P) (without navigation)

   -4. Turn the vehicle to the ON mode.

   -5. Shift the transmission to R position/mode.

   -6. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Audio-navigation unit connector C (32P) (with navigation): disconnected Audio unit connector C (32P) (without navigation): disconnected
   Test point 1	Audio-navigation unit connector C (32P) (with navigation) No. 15
   	Audio unit connector C (32P) (without navigation) No. 15
   Test point 2	Body ground

   Is there battery voltage?

   YES: with navigation

   Replace the audio-navigation unit .

   YES: without navigation

   Replace the audio unit .

   NO 

   Repair an open in the wire.

5. In Line Diag check

   -1. Shift the transmission to P position/mode.

   -2. Go into the System Diagnostic Mode, and use the In Line Diag to check the rearview camera connection .

   Does the Rear Camera indicate OK?

   YES 

   Go to step 10.

   NO 

   Go to step 6.

6. Determine possible failure area (CAMERA ADPT line, others)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Disconnect the following connector.

   Rearview camera 8P connector

   -3. Turn the vehicle to the ON mode.

   -4. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Rearview camera 8P connector: disconnected
   Test point 1	Rearview camera 8P connector No. 6
   Test point 2	Body ground

   Is there about 5.0 V?

   YES 

   Go to step 8.

   NO 

   Go to step 7.

7. Open wire check (CAMERA ADPT line)

   -1. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Rearview camera 8P connector: disconnected
   Test point 1	Audio unit connector C (32P) No. 16
   Test point 2	Body ground

   Is there about 5.0 V?

   YES 

   Repair an open in the wire.

   NO 

   Replace the audio unit .

8. Determine possible failure area (rearview camera, others)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Rearview camera 8P connector: disconnected
   Test point 1	Rearview camera 8P connector No. 5
   Test point 2	Body ground

   Is there continuity?

   YES 

   Replace the rearview camera .

   NO 

   Go to step 9.

9. Open wire check (SH CAMERA line)

   -1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Rearview camera 8P connector: disconnected
   Test point 1	Audio unit connector C (32P) No. 28
   Test point 2	Body ground

   Is there continuity?

   YES 

   There is an open in the wire(s). Replace the affected shielded harness.

   NO 

   Replace the audio unit .

10. Determine possible failure area (BACK LT line, others)

    -1. Go into the System Diagnostic Mode, and use the MICU_ICU in the Vehicle Information to check the BACK signal .

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

    Does the C_BACKLTSW signal change from [0] to [1] when the transmission is shifted from P position/mode to R position/mode?

    YES 

    Go to step 12.

    NO 

    Go to step 11.

11. Open wire check (B-CAN_H line, B-CAN_L line)

    -1. Shift the transmission to P position/mode.

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

    -3. Disconnect the following connectors.

    Body control module connector B (36P)

    Audio unit connector A (24P)

    -4. Check for continuity between test points 1 and 2.

    Test condition	Vehicle OFF (LOCK) mode
    	Body control module connector B (36P): disconnected
    	Audio unit connector A (24P): disconnected
    Test point 1	Body control module connector B (36P) No. 20
    Test point 2	Audio unit connector A (24P) No. 14

    Test point 1	Body control module connector B (36P) No. 21
    Test point 2	Audio unit connector A (24P) No. 24

    Is there continuity?

    YES 

    Replace the audio unit .

    NO 

    Repair an open in the wire(s).

12. Shorted wire check (CAMERA VCC, CAMERA GND, CAMERA V, CAMERA V GND lines)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Disconnect the following connectors.

    Audio-navigation unit connector C (32P) (with navigation)Audio unit connector C (32P) (without navigation)

    Rearview camera 8P connector

    -3. Check for continuity between the following test points and body ground individually.

    Test condition	Vehicle OFF (LOCK) mode
    	Audio-navigation unit connector C (32P) (with navigation): disconnected Audio unit connector C (32P) (without navigation): disconnected
    	Rearview camera 8P connector: disconnected

    Connector	Terminal
    Audio-navigation unit connector C (32P) (with navigation) Audio unit connector C (32P) (without navigation)	No. 13
    	No. 14
    	No. 29
    	No. 30

    Is there continuity?

    YES 

    There is a short to body ground in the wire(s). Replace the affected shielded harness.

    NO 

    The CAMERA VCC, CAMERA GND, CAMERA V, and CAMERA V GND wires are not shorted to ground. Go to step 13.

13. Shorted wire check (CAMERA lines)

    -1. Check for continuity between test points 1 and 2.

    Test condition

    Vehicle OFF (LOCK) mode

    	Audio-navigation unit connector C (32P) (with navigation): disconnected Audio unit connector C (32P) (without navigation): disconnected
    	Rearview camera 8P connector: disconnected

    Test point 1:Audio-navigation unit connector C (32P) (with navigation) Audio unit connector C (32P) (without navigation)	Test point 2:Audio-navigation unit connector C (32P) (with navigation) Audio unit connector C (32P) (without navigation)
    No. 13	No. 14, No. 28, No. 29, No. 30
    No. 14	No. 28, No. 29, No. 30
    No. 28	No. 29, No. 30
    No. 29	No. 30

    Is there continuity between any of the terminals?

    YES 

    There is a short in the wires. Replace the affected shielded harness.

    NO 

    The CAMERA wires are not shorted in the wires. Go to step 14.

14. Open wire check (CAMERA VCC, CAMERA GND, CAMERA V, CAMERA V GND lines)

    -1. Check for continuity between test points 1 and 2.

    Test condition	Vehicle OFF (LOCK) mode
    	Audio-navigation unit connector C (32P) (with navigation): disconnected Audio unit connector C (32P) (without navigation): disconnected
    	Rearview camera 8P connector: disconnected

    Test point 1:Audio-navigation unit connector C (32P) (with navigation) Audio unit connector C (32P) (without navigation)	Test point 2:Rearview camera 8P connector
    No. 13	No. 2
    No. 14	No. 8
    No. 29	No. 7
    No. 30	No. 1

    Is there continuity?

    YES 

    The CAMERA VCC, CAMERA GND, CAMERA V, and CAMERA V GND wires are OK. Go to step 15.

    NO 

    There is an open in the wire(s). Replace the affected shielded harness.

15. Voltage check (CAMERA VCC line)

    -1. Reconnect audio-navigation unit connector C (32P) (with navigation).

    -2. Reconnect audio unit connector C (32P) (without navigation).

    -3. Reconnect the rearview camera 8P connector.

    -4. Turn the vehicle to the ON mode.

    -5. Measure the voltage between test points 1 and 2.

    Test condition	Vehicle ON mode
    Test point 1	Audio-navigation unit connector C (32P) (with navigation) No. 13
    	Audio unit connector C (32P) (without navigation) No. 13
    Test point 2	Body ground

    Is there about 8.0 V?

    YES 

    Go to step 16.

    NO: With navigation

    Replace the audio-navigation unit .

    NO: Without navigation

    Replace the audio unit .

16. Rearview camera check (substitution)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Substitute a known-good rearview camera , and recheck.

    Does the symptom go away?

    YES 

    Replace the original rearview camera .

    NO: With navigation

    Replace the audio-navigation unit .

    NO: Without navigation

    Replace the audio unit .