RM35X0E _56 Audio / Visual / Telematics _078379 NAVIGATION / MULTI INFO DISPLAY _0380999 NAVIGATION SYSTEM C

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM  B1543  Extension Module Disconnected 2  


DESCRIPTION

If the radio and display receiver assembly cannot detect the navigation ECU for a certain period of time (90 seconds) after the ignition switch is turned to ACC and the radio and display receiver assembly confirms that the information is missing by checking past navigation ECU recognition information (registered information), this DTC will be stored.

HINT:

The Navigation system uses USB communication between devices. If an open, short, short to +B or short to ground occurs in the USB circuit, communication is interrupted and the Navigation system will not operate normally.


DTC No. Detection Item DTC Detection Condition Trouble Area
B1543 Extension Module Disconnected 2 Navigation ECU disconnected
·

Navigation ECU

·

Radio and display receiver assembly

·

No. 1 navigation wire

·

Harness or connector



HINT:

This DTC may be stored due to environmental reasons such as electrical noise or interference.


WIRING DIAGRAM

E408530E12
1.26,0.667 1.573,0.865 0.313,0.198 10 false +B 1.167,1.156 1.542,1.438 0.375,0.281 10 false GND 1.656,0.448 1.969,0.646 0.313,0.198 10 false 10 1.677,0.958 1.99,1.156 0.313,0.198 10 false 23 2.469,0.792 3.729,1.167 1.26,0.375 10 false RADIO 3.354,0.656 5.781,1.198 2.427,0.542 10 false from Battery*2 1.073,1.854 1.594,2.094 0.521,0.24 10 false USB+ 1.146,2.302 1.521,2.583 0.375,0.281 10 false USB- 1.083,2.75 1.594,3.042 0.51,0.292 10 false USBS 1.688,1.646 2,1.844 0.313,0.198 10 false 4 1.698,2.094 2.01,2.292 0.313,0.198 10 false 5 1.698,2.552 2.01,2.75 0.313,0.198 10 false 6 5.563,1.729 5.875,1.927 0.313,0.198 10 false 1 5.563,2.167 5.875,2.365 0.313,0.198 10 false 2 5.563,2.646 5.875,2.844 0.313,0.198 10 false 3 5.781,1.844 6.25,2.115 0.469,0.271 10 false USB+ 5.802,2.292 6.344,2.521 0.542,0.229 10 false USB- 5.802,2.75 6.313,3.042 0.51,0.292 10 false USBS 1.135,4.354 3.521,4.563 2.385,0.208 10 false : USB Communication Line 0.583,3.229 1.823,3.604 1.24,0.375 10 false Navigation ECU 5.646,3.365 6.833,3.792 1.188,0.427 10 false Radio and Display Receiver Assembly 3.01,3.208 4.51,3.552 1.5,0.344 10 false No. 1 Navigation Wire 3.604,2.604 3.979,2.885 0.375,0.281 10 false *3 4.656,4.031 5.917,4.406 1.26,0.375 10 false *3: Shielded 5.635,3.198 6.208,3.448 0.573,0.25 10 false O15 2.552,4.01 4.979,4.281 2.427,0.271 10 false *2: w/o Stop and Start System 0.479,4 2.906,4.271 2.427,0.271 10 false *1: w/ Stop and Start System 1.667,1.156 1.979,1.354 0.313,0.198 10 false O9 1.656,0.656 1.969,0.854 0.313,0.198 10 false O9 1.604,1.844 2.177,2.094 0.573,0.25 10 false O13 3.354,0.26 5.781,0.802 2.427,0.542 10 false from Engine Stop and Start ECU*1 1.604,2.292 2.177,2.542 0.573,0.25 10 false O13 1.615,2.74 2.188,2.99 0.573,0.25 10 false O13

CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuse for circuits related to this system before performing the following procedure. (w/o Stop and Start System)

·

When replacing the radio and display receiver assembly or navigation ECU, always replace it with a new one. If a radio and display receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:

-

A communication malfunction DTC may be stored.

-

The radio and display receiver assembly or navigation ECU may not operate normally.




HINT:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>PRECAUTION


PROCEDURE

1.CHECK MAP SCREEN
a.

Turn the ignition switch to ACC and wait for 90 seconds.


b.

Press the "MAP" switch and check that the map screen is displayed normally.


Result:
Result Proceed to
Map screen is displayed normally A
Map screen is not displayed normally B


HINT:
·

This DTC may be stored due to environmental reasons such as electrical noise or interference.

·

Clear past DTCs when the map screen is displayed normally. (Codes stored due to past environmental factors)




A

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


B

2.CHECK DTC
2.CHECK DTC
a.

Clear the DTCs.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>DTC CHECK / CLEAR

Body Electrical > Navigation System > Clear DTCs
50002 212

b.

Turn the ignition switch off.


c.

Turn the ignition switch to ON and wait for 90 seconds.


d.

Recheck for DTCs and check that no DTCs are output.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>DTC CHECK / CLEAR

Body Electrical > Navigation System > Trouble Codes
50001 212
OK:

No DTCs are output.



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

3.CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - BATTERY AND BODY GROUND)
3.CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - BATTERY AND BODY GROUND)
a.
E364286C42
1.5,0.333 1.917,0.583 0.417,0.25 2.573,1.302 2.813,0.823 2.813,0.823 2.99,0.823 true 2.448,1.51 2.708,2.01 2.708,2.01 2.875,2.01 true 0.198,0.146 0.51,0.344 0.313,0.198 10 false *a 1.625,0.375 2.083,0.573 0.458,0.198 10 false O9 2.938,1.948 3.271,2.125 0.333,0.177 10 false GND 3.063,0.76 3.302,0.938 0.24,0.177 10 false +B
*a Front view of wire harness connector
(to Navigation ECU)


Disconnect the navigation ECU connector.


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
O9-23 (GND) - Body ground Always Below 1 Ω



c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
O9-10 (+B) - Body ground Always 10.5 to 16 V*1
11 to 14 V*2


*1: w/ Stop and Start System

*2: w/o Stop and Start System



Result:
Proceed to
OK
NG



OK

4.CHECK NO. 1 NAVIGATION WIRE (NAVIGATION ECU - RADIO AND DISPLAY RECEIVER ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK NO. 1 NAVIGATION WIRE (NAVIGATION ECU - RADIO AND DISPLAY RECEIVER ASSEMBLY)
a.
E408532C24
1.438,0.521 1.865,0.771 0.427,0.25 1.458,2.583 1.885,2.833 0.427,0.25 2.083,1.333 2.448,0.969 2.448,0.969 2.604,0.969 true 2,1.563 2.531,2.063 2.531,2.063 2.677,2.063 true 1.833,3.438 2.208,3.104 2.208,3.104 2.365,3.104 true 1.333,4.25 1.479,4.25 1.479,4.25 1.677,3.677 true 1,3.208 1.146,3.208 1.146,3.208 1.583,3.448 true 1.927,1.344 2.344,0.604 2.344,0.604 2.49,0.604 true 1.531,0.573 1.99,0.771 0.458,0.198 10 false O13 1.552,2.625 2.01,2.823 0.458,0.198 10 false O15 0.75,0.531 1.063,0.729 0.313,0.198 10 false *a 0.792,2.594 1.104,2.792 0.313,0.198 10 false *b 2.698,0.906 3.313,1.156 0.615,0.25 10 false USB- 2.729,1.979 3.302,2.219 0.573,0.24 10 false USBS 2.552,0.531 3.323,0.729 0.771,0.198 10 false USB+ 0.594,3.115 1.365,3.313 0.771,0.198 10 false USB+ 0.896,4.167 1.667,4.365 0.771,0.198 10 false USBS 2.427,3.031 3.198,3.229 0.771,0.198 10 false USB-
*a Front view of wire harness connector
(to Navigation ECU)
*b Front view of wire harness connector
(to Radio and Display Receiver Assembly)


Disconnect the O13 navigation ECU connector.


b.

Disconnect the O15 radio and display receiver assembly connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
O13-4 (USB+) - O15-1 (USB+) Always Below 1 Ω
O13-5 (USB-) - O15-2 (USB-) Always Below 1 Ω
O13-6 (USBS) - O15-3 (USBS) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

5.REPLACE NAVIGATION ECU

NG

REPLACE NO. 1 NAVIGATION WIRE

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION ECU>REMOVAL


6.CHECK DTC
a.

Clear the DTCs.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>DTC CHECK / CLEAR

Body Electrical > Navigation System > Clear DTCs
50002 212

b.

Turn the ignition switch off.


c.

Turn the ignition switch to ON and wait for 90 seconds.


d.

Recheck for DTCs and check that no DTCs are output.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>DTC CHECK / CLEAR

Body Electrical > Navigation System > Trouble Codes
50001 212
OK:

No DTCs are output.



Result:
Proceed to
OK
NG



OK

END (NAVIGATION ECU IS DEFECTIVE)

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO RECEIVER>REMOVAL