Audio System Symptom Troubleshooting - Rearview camera image does not come on or work properly(Without Navigation with Touch Screen) (2016 2017 2018)
Rearview camera image does not come on or work properly
NOTE:
- Check the vehicle battery condition first .
- Check the connectors for poor connections or loose terminals.
- Problem verification
-1. Press the engine start/stop button to select the ON mode.
-2. Shift the transmission to R position/mode.
Does the center display unit image change when the transmission is shifted to R position/mode?
YES
Intermittent failure, the system is OK at this time.
NO
The failure is duplicated, go to step 2.
- 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 Camera icon status .
Is the Rear Camera icon green?
YES
Go to step 6.
NO
Go to step 3.
- Determine possible failure area (CAMERA ADPT line, others)
-1. Press the engine start/stop button to select the OFF mode.
-2. Disconnect the following connector.
Rearview camera 12P connector -3. Press the engine start/stop button to select the ON mode.
-4. Measure the voltage between test points 1 and 2.
Test condition ON mode Rearview camera 12P connector: disconnected Test circuit CAMERA ADPT Test point 1 Rearview camera 12P connector No. 11 (BRN) Test point 2 Body ground Is there about 3.0 V?
YES
The CAMERA ADPT wire is OK. Go to step 5.
NO
Go to step 4.
- Open wire check (CAMERA ADPT line)
-1. Measure the voltage between test points 1 and 2.
Test condition ON mode Rearview camera 12P connector: disconnected Test circuit CAMERA ADPT Test point 1 Audio unit connector G (24P) No. 17 (BLK) Test point 2 Body ground Is there about 3.0 V?
YES
Repair an open in the wire between the audio unit and the rearview camera.
NO
- Rearview camera check
-1. Press the engine start/stop button to select the OFF mode.
-2. Check for continuity between test points 1 and 2.
Test condition OFF mode Rearview camera 12P connector: disconnected Test circuit RC GND Test point 1 Rearview camera 12P connector No. 6 (RED) Test point 2 Body ground Is there continuity?
YES
NO
Repair an open in the wire between the audio unit and the rearview camera.
- Determine possible failure area (BACK LT line, others)
-1. Go into the System Diagnostic Mode, and use the Car Status diagnosis to check the BACK signal .
-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 8.
NO
Go to step 7.
- Open wire check (BACK LT line)
-1. Shift the transmission to P position/mode.
-2. Press the engine start/stop button to select the OFF mode.
-3. Disconnect the following connector.
Audio unit connector G (24P) -4. Press the engine start/stop button to select the ON mode.
-5. Shift the transmission to R position/mode.
-6. Measure the voltage between test points 1 and 2.
Test condition ON mode Audio unit connector G (24P): disconnected Test circuit BACK LT Test point 1 Audio unit connector G (24P) No. 24 (GRY) Test point 2 Body ground Is there battery voltage?
YES
NO
Repair an open in the wire between the audio unit and the under-dash fuse/relay box.
- Shorted wire check (CAMERA lines) 1
-1. Shift the transmission to P position/mode.
-2. Press the engine start/stop button to select the OFF mode.
-3. Disconnect the following connector.
Rearview camera 12P connector Audio unit connector G (24P) -4. Check for continuity between these test points and body ground individually.
Test condition OFF mode Rearview camera 12P connector: disconnected Audio unit connector G (24P): disconnected Connector Test circuit Terminal Audio unit connector G (24P) CAMERA GND No. 3 (WHT) RC GND No. 4 (GRN) CAMERA V No. 15 (BLK) CAMERA VCC No. 16 (RED) Is there continuity?
YES
There is a short to body ground in the wire(s) between the audio unit and the rearview camera. Replace the affected shielded harness.
NO
The CAMERA wires are OK. Go to step 9.
- Shorted wire check (CAMERA lines) 2
-1. Check for continuity between test points 1 and 2.
Test condition OFF mode Rearview camera 12P connector: disconnected Audio unit connector G (24P): disconnected Test circuits Connector: Audio unit connector G (24P) Test point 1 Test points 2 CAMERA SH to CAMERA GND, RC GND, CAMERA V, CAMERA VCC No. 2 (GRY) No. 3 (WHT), No. 4 (GRN), No. 15 (BLK), No. 16 (RED) CAMERA GND to RC GND, CAMERA V, CAMERA VCC No. 3 (WHT) No. 4 (GRN), No. 15 (BLK), No. 16 (RED) RC GND to CAMERA V, CAMERA VCC No. 4 (GRN) No. 15 (BLK), No. 16 (RED) CAMERA V to CAMERA VCC No. 15 (BLK) No. 16 (RED) Is there continuity between any of the terminals?
YES
There is a short in the wires between the audio unit and the rearview camera. Replace the affected shielded harness.
NO
The CAMERA wires are not shorted in the wires. Go to step 10.
- Open wire check (CAMERA lines)
-1. Check for continuity between test points 1 and 2.
Test condition OFF mode Rearview camera 12P connector: disconnected Audio unit connector G (24P): disconnected Test circuit Test point 1:Audio unit connector G (24P) Test point 2:Rearview camera 12P connector CAMERA V GND No. 3 (WHT) No. 7 (WHT) RC GND No. 4 (GRN) No. 6 (RED) CAMERA V No. 15 (BLK) No. 9 (BLK) CAMERA VCC No. 16 (RED) No. 4 (GRN) Is there continuity?
YES
The CAMERA wires are not open. Go to step 11.
NO
There is an open in the wire(s) between the audio unit and the rearview camera. Replace affected shielded harness.
- Rearview camera check (substitution)
-1. Substitute a known-good rearview camera .
-2. Reconnect all the connectors, and recheck.
Does the symptom go away?
YES
Replace the original rearview camera.
NO