Audio-Navigation System DTC 2618
DTC 2618 : LaneWatch Diag
- Check the vehicle 12 volt battery condition first .
- This navigation 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 any official Honda service website for more service information about the navigation system.
- 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-navigation 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-navigation 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-navigation 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-navigation unit connector B (24P): disconnected Test point 1 Audio-navigation 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-navigation 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-navigation unit connector B (24P) -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Audio-navigation unit connector B (24P): disconnected LaneWatch camera 6P connector: disconnected Test point 1 Audio-navigation unit connector B (24P) No. 9 Test point 2 LaneWatch camera 6P connector (male terminals) No. 3: Is there continuity?
YES
Replace the audio-navigation unit .
NO
There is an open in the wire between the audio-navigation 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-navigation 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-navigation unit connector B (24P): disconnected Test point 1 Audio-navigation unit connector B (24P) No. 22 Test point 2 Body ground Test point 1 Audio-navigation 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-navigation 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-navigation unit connector B (24P): disconnected Test point 1 Audio-navigation unit connector B (24P) No. 22 Test point 2 Audio-navigation unit connector B (24P) No. 23 Is there continuity?
YES
There is a short in the wires between the audio-navigation 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-navigation unit connector B (24P): disconnected Test point 1 Audio-navigation unit connector B (24P) No. 22 Test point 2 LaneWatch camera 6P connector (male terminals) No. 2: Test point 1 Audio-navigation 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-navigation unit and the LaneWatch camera. Replace the affected shielded harness.