Audio System Symptom Troubleshooting - Rearview camera image does not come on

1.

Problem verification:

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:

System Diagnostic Mode check

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

?2.

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):

Determine possible failure area (BACK LT line, others)

?1.

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):

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:

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):

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):

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):

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):

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):

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):

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):

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):

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):

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):

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):

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.?