LaneWatch Symptom Troubleshooting - Does not switch to the LaneWatch screen
Does not switch to the LaneWatch screen
1.
LaneWatch system check (audio/navigation system diagnostic mode):

LaneWatch system check (audio/navigation system diagnostic mode)
?1.
Turn the vehicle to the ON mode.

?2.
Go into the system diagnostic mode, and select the Detail Information & Setting.

?3.
Select the Functional Setup icon.

?4.
Select the LaneWatch icon.

Is "Connection OK" indicated?

     
YES
     
     
     
Go to step 2.
     
NO
     
     
     
Check for hard error codes (audio/navigation DTCs).?
2.
LaneWatch switch check (audio/navigation system diagnostic mode):

LaneWatch switch check (audio/navigation system diagnostic mode)
?1.
Operate the LaneWatch switch.

Is "LaneWatch Switch ON" indicated?

     
YES
     
     
     
Intermittent failure, the system is OK at this time.?
     
NO
     
     
     
Go to step 3.
3.
Open wire check (LWC SW line):

Open wire check (LWC SW line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Combination light switch 12P connector

?3.
Connect terminals A and B with a jumper wire.
Terminal A
Combination light switch 12P connector (female terminals) No. 4:
Terminal B
Body ground


?4.
Turn the vehicle to the ON mode.

?5.
Go into the system diagnostic mode, and select the Detail Information & Setting.

?6.
Select the Functional Setup icon.

?7.
Select the LaneWatch icon.

Is "LaneWatch Switch ON" indicated?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Repair an open in the LWC SW wire between the combination light switch and the audio unit or the audio-navigation unit.?
4.
Open wire check (GND line):

Open wire check (GND line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Remove the jumper wire.

?3.
Connect terminals A and B with a jumper wire.
Terminal A
Combination light switch 12P connector (female terminals) No. 3:
Terminal B
Combination light switch 12P connector (female terminals) No. 4:


?4.
Turn the vehicle to the ON mode.

?5.
Go into the system diagnostic mode, and select the Detail Information & Setting.

?6.
Select the Functional Setup icon.

?7.
Select the LaneWatch icon.

Is "LaneWatch Switch ON" indicated?

     
YES
     
     
     
     
NO
     
     
     
Repair an open in the GND wire between the combination light switch and body ground (G401), or repair poor ground (G401).?