Audio-Navigation System DTC Troubleshooting: 2618 (Display Audio)

Audio-Navigation System DTC Troubleshooting: 2618

DTC 2618: LaneWatch Diag

NOTE:

	Check the vehicle 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 the connectors for poor connections or loose terminals.

Problem verification:

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):

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 No. 3
Test point 2	LaneWatch camera 6P connector No. 4

Is there about 6 - 9 V?


	YES

Go to step 7.


	NO

Go to step 3.

Determine possible failure area (BSM VCC line, SH BSM line):

Determine possible failure area (BSM VCC line, SH BSM 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 No. 6
Test point 2	Body ground

Is there about 6 - 9 V?


	YES

Go to step 6.


	NO

Go to step 4.

Open wire check (BSM VCC line):

Open wire check (BSM 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 C (24P) No. 21
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 BSM VCC wire is not open. Go to step 5.

Shorted wire check (BSM VCC line):

Shorted wire check (BSM VCC line)

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

?2.

Disconnect the following connector.

Audio-navigation unit connector C (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 C (24P): disconnected
Test point 1	Audio-navigation unit connector C (24P) No. 21
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

Replace the audio-navigation unit.?

Open wire check (SH BSM line):

Open wire check (SH BSM line)

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

?2.

Disconnect the following connector.

Audio-navigation unit connector C (24P)

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Audio-navigation unit connector C (24P): disconnected
	LaneWatch camera 6P connector: disconnected
Test point 1	Audio-navigation unit connector C (24P) No. 9
Test point 2	LaneWatch camera 6P connector No. 1

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 BSM, BSM TO UNIT lines):

Shorted wire check (UNIT TO BSM, BSM TO UNIT lines)

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

?2.

Disconnect the following connector.

Audio-navigation unit connector C (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 C (24P): disconnected
Test circuit 1
Test point 1	Audio-navigation unit connector C (24P) No. 22
Test point 2	Body ground

Test circuit 2
Test point 1	Audio-navigation unit connector C (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 BSM wire and the BSM TO UNIT wire are not shorted. Go to step 8.

Shorted wire check (UNIT TO BSM line to BSM TO UNIT line):

Shorted wire check (UNIT TO BSM line to BSM 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 C (24P): disconnected
Test point 1	Audio-navigation unit connector C (24P) No. 22
Test point 2	Audio-navigation unit connector C (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 BSM to the BSM TO UNIT wire are not shorted. Go to step 9.

Open wire check (UNIT TO BSM, BSM TO UNIT lines):

Open wire check (UNIT TO BSM, BSM 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 C (24P): disconnected
Test circuit 1
Test point 1	Audio-navigation unit connector C (24P) No. 22
Test point 2	LaneWatch camera 6P connector No. 2

Test circuit 2
Test point 1	Audio-navigation unit connector C (24P) No. 23
Test point 2	LaneWatch camera 6P connector 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.?