DESCRIPTION
The display and navigation module display and the navigation module board are connected by the IEEE cable.
When an IEEE communication error occurs between the display and navigation module display and the navigation module board, this DTC is stored.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| B1569 | Either is met:
|
|
Tech Tips
Even if no fault is present, this DTC may be stored depending on the battery condition or engine start voltage.
The display and navigation module display is the master unit.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)
Check for optional components.
Check that optional components (including associated wiring) which generate radio waves are not installed.
| Result | Proceed to |
|---|---|
| Optional components (including associated wiring) are installed | A |
| Optional components (including associated wiring) are not installed | B |
Tech Tips
Electrical noise from radio waves generated by optional components or the wiring for those components may affect IEEE communication.
This DTC may be stored when an IEEE communication error occurs due to electrical noise.
| B |
|
CHECK FOR DTC Click here |
| A |
|
REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)
Remove the optional components (including associated wiring).
Note
Do not remove the optional components or associated wiring without the permission of the customer.
| NEXT |
|
CHECK FOR DTC
Clear the DTCs Click here.
Check for DTCs and check if the same trouble occurs again.
| OK |
|---|
| No DTCs are output. |
| NG |
|
CHECK HARNESS AND CONNECTOR (NAVIGATION MODULE BOARD POWER SOURCE) Click here |
| OK |
|
END
CHECK HARNESS AND CONNECTOR (NAVIGATION MODULE BOARD POWER SOURCE)
| *a | Front view of wire harness connector (to Navigation Module Board) |
Disconnect the H16 navigation module board connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK IEEE CABLE CONNECTOR
Check the IEEE cable connector.
Check if the IEEE cable connectors between the navigation module board and the display and navigation module display have any connection problems Click here.
Check that the screen display is normal.
| OK |
|---|
| Screen display is normal. |
| NG |
|
REPLACE IEEE CABLE Click here |
| OK |
|
END
REPLACE IEEE CABLE
Replace the IEEE cable between the navigation module board and the display and navigation module display.
Check that the screen display is normal.
| OK |
|---|
| Screen display is normal. |
| NG |
|
REPLACE NAVIGATION MODULE BOARD Click here |
| OK |
|
END
REPLACE NAVIGATION MODULE BOARD
Replace the navigation module board Click here.
Clear the DTCs Click here.
Check for DTCs and check if the same trouble occurs again.
| OK |
|---|
| No DTCs are output. |
| NG |
|
REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Click here |
| OK |
|
END