LaneWatch Symptom Troubleshooting - Does not switch to the LaneWatch screen | 2012-2016 CR-V RM1/RM4,RE5/RE6 HONDA CR-V Service Manual

1.

LaneWatch camera check:

LaneWatch camera check

?1.	Start the engine.

?2.

Go into the System Diagnostic Mode, and select the Detail Information & Setting.

	Without navigation system
	With navigation system

?3.	Select LaneWatch in the Unit Check.

Is the Connection OK?


	YES

Go to step 2.


	NO

Go to step 5.

2.

LaneWatch switch check:

LaneWatch switch check

?1.	Select Return, then select LaneWatch in the Functional Setup.

?2.	Operate the LaneWatch switch.

Is the LaneWatch switch OK?


	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.

LaneWatch switch (combination light switch) 12P connector

?3.	Turn the vehicle to the ON mode.

?4.

Go into the System Diagnostic Mode, and select the Detail Information & Setting.

	Without navigation system
	With navigation system

?5.	Select LaneWatch in the Functional Setup.

?6.

Connect terminals A and B with a jumper wire.

Terminal A	LaneWatch switch (combination light switch) 12P connector No. 4
Terminal B	Body ground

Is the LaneWatch Switch turned on?


	YES

The LWC SW wire is OK. Go to step 4.


	NO

Repair an open in the wire between the LaneWatch switch (combination light switch) and the audio/audio-navigation unit.?

4.

Open wire check (GND line):

Open wire check (GND line)

?1.

Connect terminals A and B with a jumper wire.

Terminal A	LaneWatch switch (combination light switch) 12P connector No. 3
Terminal B	LaneWatch switch (combination light switch) 12P connector No. 4

Is the LaneWatch Switch turned on?


	YES

The GND wire is OK. Replace the LaneWatch switch (combination light switch).?


	NO

Repair an open in the wire between the LaneWatch switch (combination light switch) and the body ground at G501.?

5.

Shorted wire check (LWC VCC line) 1:

Shorted wire check (LWC VCC line) 1

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

?2.

Disconnect the following connectors.

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 No. 4
Test point 2	Body ground

Is there about 8 V?


	YES

The LWC VCC wire is OK. Go to step 6.


	NO

Go to step 10.

6.

Open wire check (LWC SH line):

Open wire check (LWC SH line)

?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 No. 3
Test point 2	Body ground

Is there continuity?


	YES

The LWC SH wire is OK. Go to step 7.


	NO

Repair an open in the wire between the LaneWatch camera and the audio/audio-navigation unit.?

7.

Shorted wire check (LWC TO UNIT, UNIT TO LWC line) 1:

Shorted wire check (LWC TO UNIT, UNIT TO LWC line) 1

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

?2.

Disconnect the following connectors.

Audio/audio-navigation unit connector G (24P)

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	LaneWatch camera 6P connector: disconnected
	Audio/audio-navigation unit connector G (24P): disconnected
Test point 1	LaneWatch camera 6P connector No. 5
Test point 2	Body ground

Test point 1	LaneWatch camera 6P connector No. 2
Test point 2	Body ground

Is there continuity?


	YES

Repair a short to bodyground in the wire between the LaneWatch camera and the audio/audio-navigation unit.?


	NO

Go to step 8.

8.

Shorted wire check (LWC TO UNIT, UNIT TO LWC line) 2:

Shorted wire check (LWC TO UNIT, UNIT TO LWC line) 2

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	LaneWatch camera 6P connector: disconnected
	Audio/audio-navigation unit connector G (24P): disconnected
Test point 1	LaneWatch camera 6P connector No. 2
Test point 2	LaneWatch camera 6P connector No. 5

Is there continuity?


	YES

Repair a short in the wire between the LaneWatch camera and the audio/audio-navigation unit.?


	NO

Go to step 9.

9.

Open wire check (LWC TO UNIT, UNIT TO LWC line):

Open wire check (LWC TO UNIT, UNIT TO LWC line)

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	LaneWatch camera 6P connector: disconnected
	Audio/audio-navigation unit connector G (24P): disconnected
Test point 1	LaneWatch camera 6P connector No. 2
Test point 2	Audio/audio-navigation unit connector G (24P) No. 22

Test point 1	LaneWatch camera 6P connector No. 5
Test point 2	Audio/audio-navigation unit connector G (24P) No. 23

Is there continuity?


	YES

The LWC TO UNIT, UNIT TO LWC wires are OK. Replace the LaneWatch camera.?


	NO

Repair an open in the wire between the LaneWatch camera and audio/audio-navigation unit.?

10.

Shorted wire check (LWC VCC line) 2:

Shorted wire check (LWC VCC line) 2

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

?2.

Disconnect the following connectors.

Audio/audio-navigation unit connector G (24P)

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	LaneWatch camera 6P connector: disconnected
	Audio/audio-navigation unit connector G (24P): disconnected
Test point 1	LaneWatch camera 6P connector No. 4
Test point 2	Body ground

Is there continuity?


	YES

Repair a short in the wire between the LaneWatch camera and the audio/audio-navigation unit.?


	NO

Go to step 11.

11.

Open wire check (LWC VCC line):

Open wire check (LWC VCC line)

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	LaneWatch camera 6P connector: disconnected
	Audio/audio-navigation unit connector G (24P): disconnected
Test point 1	LaneWatch camera 6P connector No. 4
Test point 2	Audio/audio-navigation unit connector G (24P) No. 21

Is there continuity?


	YES

The LWC VCC wire is OK. Replace the audio unit (without navigation system) or the audio-navigation unit (with navigation system).?


	NO

Repair an open in the wire between the LaneWatch camera and the audio/audio-navigation unit.?