a. Select Change then refer to
Figure 8.

Figure 7

b. Correct the VIN, and then select
Confirm.

Step
18b

Figure 8

7/19

NTB12-105a

19. After system call completes, select
MULTI AV.

Step
19

Figure 9

20. Select Read / Write Configuration.
Step
20

Figure 10

Step
21

21. Select Before Replace ECU.

Figure 11

8/19

NTB12-105a

IMPORTANT: Do not select Save (see Figure 12).

22. Write down or print the Setting Value (Multi-AV configuration) for each of the Items
listed (see Figure 12).

NOTE:
•

The screen shown in Figure 12 is an example.

•

These setting values will be used during the reprogram (reconfigure) of the Multi
AV later in this procedure.

23. When done, select Home.

Example

Step
23

Example: The items listed and the values displayed will very between models and options.

Step 22:
Write down
these values

IMPORTANT:
Do not select

Figure 12

9/19

NTB12-105a

Part 2: Perform Multi AV initialization using the vehicles on-board Systems
Diagnostic Menu.
NOTE:
• The ignition should still be ON.
• Leave C-III plus turned ON with the home screen displayed and the VI connected
while performing Multi-AV initialization.
1. Turn the audio system OFF.
Your vehicle may look different.
2. Put the AV system into System
Diagnostic Mode as follows:

SETTING

a. Press and hold the SETTING button.
b. While holding the SETTING button,
turn the volume control knob 40 clicks
or more.
•

The volume control knob can be
turned either direction.

•

When the system goes into the
System Diagnostic Menu, the
screen in Figure A2 will display.

Volume knob

Figure A1

3. Select Confirmation/Adjustment.

Step
3

Figure A2

Scroll
arrow

4. Select Initialize Settings.

Step
4

NOTE: Use the scroll arrow to find
“Initialize Settings”.

Figure A3
10/19

NTB12-105a

Step
5

5. Select Accessory Number Initialization.

Figure A4

6. Select Yes.
Step
6

Figure A5

7. Select Yes.
Step
7

Figure A6

8. The screen in Figure A7 will display while
initializing.

Figure A7

11/19

NTB12-105a

9. The screen in Figure A8 will display when
initializing is complete.

Figure A8
10. Reboot the Multi AV system as follows:
a. Turn the ignition OFF.
b. Wait 10 Seconds.
c. Turn the ignition ON.

Part 3: Using C-III plus; reprogram (reconfigure) the Multi AV unit and confirm the
control unit part number has changed.

1. Select Re/programming
Configuration.

Step
1

Figure B1

2. Check the box confirming the
precautions have been read then
select Next.
Step
2

Figure B2
12/19

NTB12-105a

3. Use Manual Selection (Vehicle
Name), then select correct Make,
Model and Year.

NOTE: If the screen in Figure B3 does
not display, skip to step 5.

Step
3

4. Click on Select.
Step
4

Figure B3

5. Confirm correct VIN, Vehicle Name,
and Model Year.
Step
5

6. Select Confirm.
Step
6

Figure B4

13/19

NTB12-105a

7. After system call completes, select
MULTI AV.

Step
7

Figure B5

8. Select Manual Configuration.
Step
8

Figure B6

14/19

NTB12-105a

9. Use the drop down arrows to select the values for each item listed (see Figure B7).
•

For MICROPHONE, select “DIRECTIONAL MIC”.

•

For all other items, use the values that you wrote down in Part 1, step 22 on page 9.

10. Select Next.

Example

Step 9:
Select
values

Step
10

Figure B7

15/19

NTB12-105a

Example
11. Confirm correct values for items
listed and then select OK.

Step
13

12. Wait for C-III plus to transfer the
reprogramming (reconfiguration) to
Multi AV – about 1 minute or less.

13. After C-III plus finishes transferring
the reconfiguration to the MULTI AV,
select Home.

Step
11

Figure B8
14. Turn the ignition OFF and wait 10 seconds.

15. Start the engine and let it idle while the Multi AV system reboots.

16. Use C-III plus to clear any codes from the Multi AV system:
a. Select Diagnoses (One System) > Multi AV > Self Diagnosis Results.
b. Clear any codes that are present.

17. Confirm the Multi AV part number has
changed:

Step
17a

a. Select ECU Identification.
b. Compare the part number you
wrote down in Part 1, step 11, on
page 5 to the one that is now
displayed.

****

Step
17b

c. The part number should be
different.
NOTE: If the part numbers are not
different, the reconfigure process
was not successful.

Figure B9

18. Close the C-III plus and disconnect the VI from the vehicle.

16/19

NTB12-105a

Part 4: Make sure the Multi AV system is operational.

1. Confirm that fan, temperature, and air flow modes can be adjusted.

2. Turn the radio ON.

3. Turn the volume knob and make sure the audio volume responds to movement of the
knob.

Part 5: Replace the system microphone
•

Refer to the AV section in the Service Manual for microphone replacement
information.
CAUTION: Be careful not to crease the headlining.

•

Make sure to use the new microphone listed in the Parts Information.

•

Make sure to use the new map lamp finisher listed in the Parts Information.

IMPORTANT: Make sure the new microphone is firmly snapped into place. If the
microphone is loose, it could pick up extra noise from an unintended source.

17/19

NTB12-105a

Part 6: Check Microphone Operation Using the vehicles on-board Systems
Diagnostic Menu.
1. Turn the ignition ON and the audio system OFF.

Your vehicle may look different.
2. Put the AV system into System
Diagnostic Mode as follows:

SETTING

a. Press and hold the SETTING button.
b. While holding the SETTING button,
turn the volume control knob 40 clicks
or more.
•

The volume control knob can be
turned either direction.

•

When the system goes into the
System Diagnostic Menu, the
screen in Figure M2 will display.

Volume knob

Figure M1

3. Select Confirmation/Adjustment.
Step
3

Figure M2

Scroll
arrow
4. Select Hands-free Phone.

Step
4

NOTE: Use the scroll arrow to find
Handsfree Phone.

Figure M3

18/19

NTB12-105a

5. Select Voice Microphone Test.
• A “feedback” noise will come from
the system speakers as
confirmation that the microphone is
operating.
• If you speak, you should hear your
voice coming from the system
speakers. This is further
confirmation that the microphone is
operating.

Step
5

Figure M4

6. Reboot Multi AV system by cycling the ignition OFF for 10 seconds, then back ON.

7. Reset the customer’s radio stations presets.

The Service Procedure is complete, but you may need to adjust the system for
customer preference:

Adjust outgoing call volume to a level that is suitable for the customer’s voice as follows:

A. Press the SETTING button on the control
panel.

B. Select Volumes & Beeps.
Figure M5
C. Adjust the Outgoing Call volume to the
customer’s preference.
•
•
•
•
•

If extremely loud talker, set to
level 1 ( - ).
If moderately loud talker, set to level 2.
If normal loud talker, set to level 3.
If moderately quiet talker, set to
level 4.
If quiet talker, set to level 5 (+).

19/19

Figure M6

NTB12-105a