DTC 2618

DTC 2618  : LaneWatch Diag

NOTE: 

• 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.

1. Problem verification

   -1. Clear the hard error codes .

   -2. Turn the vehicle to the OFF (LOCK) mode.

   -3. Wait for at least 6 seconds.

   -4. 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.

2. Determine possible failure area (LWC CAM VCC/LWC VCC AS line, 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 (female terminals) No. 1:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there about 8.0 V?

   YES 

   The LWC CAM VCC/LWC VCC AS wire is OK. Go to step 5.

   NO 

   Go to step 3.

3. Open wire check (LWC CAM VCC/LWC VCC AS 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 F (36P) No. 24
   Test point 2	Body ground

   Is there about 8.0 V?

   YES 

   There is an open in the wire. Replace the affected shielded harness.

   NO 

   The LWC CAM VCC/LWC VCC AS wire is not open. Go to step 4.

4. Shorted wire check (LWC CAM VCC/LWC VCC AS line)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Disconnect the following connector.

   Audio-navigation unit connector F (36P)

   -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 F (36P): disconnected
   Test point 1	Audio-navigation unit connector F (36P) No. 24
   Test point 2	Body ground

   Is there continuity?

   YES 

   There is a short to body ground in the wire. Replace the affected shielded harness.

   NO 

   Replace the audio-navigation unit .

5. Determine possible failure area (LWC CAM VGND/LWC VGND DA AS line, 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
   	LaneWatch camera 6P connector: disconnected
   Test point 1	LaneWatch camera 6P connector (female terminals) No. 5:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The LWC CAM VGND/LWC VGND DA AS wire is OK. Go to step 7.

   NO 

   Go to step 6.

6. Open wire check (LWC CAM VGND/LWC VGND DA AS line)

   -1. Disconnect the following connector.

   Audio-navigation unit connector F (36P)

   -2. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	LaneWatch camera 6P connector: disconnected
   	Audio-navigation unit connector F (36P): disconnected
   Test point 1	Audio-navigation unit connector F (36P) No. 7
   Test point 2	LaneWatch camera 6P connector (female terminals) No. 5:

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Replace the audio-navigation unit .

   NO 

   There is an open in the wire. Replace the affected shielded harness.

7. Determine possible failure area (SH LWC CAM/LWC SH AS line, 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
   	LaneWatch camera 6P connector: disconnected
   Test point 1	LaneWatch camera 6P connector (female terminals) No. 2:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The SH LWC CAM/LWC SH AS wire is OK. Go to step 9.

   NO 

   Go to step 8.

8. Open wire check (SH LWC CAM/LWC SH AS line)

   -1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	LaneWatch camera 6P connector: disconnected
   Test point 1	Audio-navigation unit connector F (36P) No. 6
   Test point 2	Body ground

   Is there continuity?

   YES 

   There is an open in the wire. Replace the affected shielded harness.

   NO 

   Replace the audio-navigation unit .

9. Shorted wire check (LWC UART AS line)

   -1. Disconnect the following connector.

   Audio-navigation unit connector F (36P)

   -2. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	LaneWatch camera 6P connector: disconnected
   	Audio-navigation unit connector F (36P): disconnected
   Test point 1	Audio-navigation unit connector F (36P) No. 26
   Test point 2	Body ground

   Is there continuity?

   YES 

   There is a short to body ground in the wire. Replace the affected shielded harness.

   NO 

   The LWC UART AS wires are not shorted to ground. Go to step 10.

10. Open wire check (LWC UART AS 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 F (36P): disconnected
    Test point 1	Audio-navigation unit connector F (36P) No. 26
    Test point 2	LaneWatch camera 6P connector (female terminals) No. 6:

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Replace the LaneWatch camera .

    NO 

    There is an open in the wire. Replace the affected shielded harness.