Audio System Symptom Troubleshooting - Rearview camera image does not come on or work properly(With Normal Audio)
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 multi-information display unit image change to rear view 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.
- 2. Determine possible failure area (BACK LT line, others):
- 1. Shift the transmission to P position/mode.
- 2. Do the Self-Diagnostic Function, and use the Camera in the Display Diagnosis - Refer to: How to Troubleshoot the Audio SystemAudio System Self-Diagnostic Function .
Does the rearview image appear?
YES
Go to step 3.
NO
Go to step 4.
- 3. Open wire check (BACK LT line):
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Multi-information display unit connector A (32P) - 3. Turn the vehicle to the ON mode.
- 4. Shift the transmission to R position/mode.
- 5. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Multi-information display unit connector A (32P): disconnected Test point 1 Multi-information display unit connector A (32P) No. 14 Test point 2 Body ground Is there battery voltage?
YES
Replace the multi-information display unit .
NO
Repair an open in the wire between the multi-information display unit and the under-dash fuse/relay box.
- 4. 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. 7 Test point 2 Body ground Is there about 3.0 V?
YES
The CAMERA ADPT wire is OK. Go to step 6.
NO
Go to step 5.
- 5. 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 Multi-information display unit connector A (32P) No. 21 Test point 2 Body ground Is there about 3.0 V?
YES
Repair an open in the wire between the multi-information display unit and the rearview camera.
NO
- 6. Open wire check (CAMERA lines):
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Multi-information display unit connector A (32P) - 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Rearview camera 8P connector: disconnected Multi-information display unit connector A (32P): disconnected Test point 1: Test point 2: No. 2 No. 8 No. 3 No. 4 No. 18 No. 5 No. 19 No. 6 No. 20 No. 3 Is there continuity?
YES
The CAMERA wires are not open. Go to step 7.
NO
There is an open in the wire(s) between the multi-information display unit and the rearview camera. Replace affected shielded harness.
- 7. Shorted wire check (CAMERA lines) 1:
- 1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Rearview camera 8P connector: disconnected Multi-information display unit connector A (32P): disconnected Test point 1 Test points 2 No. 2 No. 3, No. 18, No. 19, No. 20 No. 3 No. 18, No. 19, No. 20 No. 18 No. 19, No. 20 No. 19 No. 20 Is there continuity between any of the terminals?
YES
There is a short in the wires between the multi-information display unit and the rearview camera. Replace the affected shielded harness.
NO
The CAMERA wires are not shorted in the wires. Go to step 8.
- 8. Shorted wire check (CAMERA lines) 2:
- 1. Check for continuity between these test points and body ground individually.
Test condition Vehicle OFF (LOCK) mode Rearview camera 8P connector: disconnected Multi-information display unit connector A (32P): disconnected Connector Terminal Multi-information display unit connector A (32P) No. 3 No. 18 No. 19 No. 20 Is there continuity?
YES
There is a short to body ground in the wire(s) between the multi-information display unit and the rearview camera. Replace the affected shielded harness.
NO
The CAMERA wires are OK. Go to step 9.
- 9. 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