Audio System DTC 2618
DTC 2618 : LaneWatch Diag
- Check the vehicle 12 volt battery condition first .
- This audio DTC sets when Connection NG is indicated in the LaneWatch diagnosis (the LaneWatch icon is red in the System Links).
- Before you troubleshoot, make sure to follow the General Troubleshooting Information .
- Check the connectors for poor connections or loose terminals.
- Problem verification
-1. Clear the hard error codes .
-2. Turn the vehicle to the OFF (LOCK) mode then the ON mode.
-3. Check for hard error codes .
Is DTC 2618 indicated?
YES
The failure is duplicated, go to step 2.
NO
Intermittent failure, the system is OK at this time.
- Determine possible failure area (LaneWatch camera power and ground, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
LaneWatch camera 6P connector -3. Turn the vehicle to the ON mode.
-4. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode LaneWatch camera 6P connector: disconnected Test point 1 LaneWatch camera 6P connector (male terminals) No. 3: Test point 2 LaneWatch camera 6P connector (male terminals) No. 4: Is there about 6 - 9 V?
YES
Go to step 7.
NO
Go to step 3.
- Determine possible failure area (LWC CAM VCC line, SH LWC CAN line)
-1. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode LaneWatch camera 6P connector: disconnected Test point 1 LaneWatch camera 6P connector (male terminals) No. 4: Test point 2 Body ground Is there about 6 - 9 V?
YES
Go to step 6.
NO
Go to step 4.
- Open wire check (LWC CAM VCC line)
-1. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode LaneWatch camera 6P connector: disconnected Test point 1 Audio unit connector B (24P) No. 8 Test point 2 Body ground Is there about 6 - 9 V?
YES
There is an open in the wire between the audio unit and the LaneWatch camera. Replace the affected shielded harness.
NO
The LWC CAM VCC wire is not open. Go to step 5.
- Shorted wire check (LWC CAM VCC line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Audio unit connector B (24P) -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode LaneWatch camera 6P connector: disconnected Audio unit connector B (24P): disconnected Test point 1 Audio unit connector B (24P) No. 8 Test point 2 Body ground Is there continuity?
YES
There is a short to body ground in the wire between the audio unit and the LaneWatch camera. Replace the affected shielded harness.
NO
- Open wire check (SH LWC CAM line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Audio unit connector B (24P) -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Audio unit connector B (24P): disconnected LaneWatch camera 6P connector: disconnected Test point 1 Audio unit connector B (24P) No. 9 Test point 2 LaneWatch camera 6P connector (male terminals) No. 3: Is there continuity?
YES
NO
There is an open in the wire between the audio unit and the LaneWatch camera. Replace the affected shielded harness.
- Shorted wire check (UNIT TO LWC, LWC TO UNIT lines)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Audio unit connector B (24P) -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode LaneWatch camera 6P connector: disconnected Audio unit connector B (24P): disconnected Test point 1 Audio unit connector B (24P) No. 22 Test point 2 Body ground Test point 1 Audio unit connector B (24P) No. 23 Test point 2 Body ground Is there continuity?
YES
There is a short to body ground in the wire(s) between the audio unit and the LaneWatch camera. Replace the affected shielded harness.
NO
The UNIT TO LWC wire and the LWC TO UNIT wire are not shorted. Go to step 8.
- Shorted wire check (UNIT TO LWC line to LWC TO UNIT line)
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode LaneWatch camera 6P connector: disconnected Audio unit connector B (24P): disconnected Test point 1 Audio unit connector B (24P) No. 22 Test point 2 Audio unit connector B (24P) No. 23 Is there continuity?
YES
There is a short in the wires between the audio unit and the LaneWatch camera. Replace the affected shielded harness.
NO
The UNIT TO LWC to the LWC TO UNIT wires are not shorted. Go to step 9.
- Open wire check (UNIT TO LWC, LWC TO UNIT lines)
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode LaneWatch camera 6P connector: disconnected Audio unit connector B (24P): disconnected Test point 1 Audio unit connector B (24P) No. 22 Test point 2 LaneWatch camera 6P connector (male terminals) No. 2: Test point 1 Audio unit connector B (24P) No. 23 Test point 2 LaneWatch camera 6P connector (male terminals) No. 5: Is there continuity?
YES
Replace the LaneWatch camera .
NO
There is an open in the wire(s) between the audio unit and the LaneWatch camera. Replace the affected shielded harness.