RM38T0EC _56 Audio / Visual / Telematics _111967 NAVIGATION / MULTI INFO DISPLAY _0588532 NAVIGATION SYSTEM(Production Date from 2023/04) C

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM(Production Date from 2023/04)  U102000  Lost Communication with Ethernet  


DESCRIPTION

This DTC is stored when the radio and display receiver assembly detects a malfunction in the Ethernet network.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
U102000 Lost Communication with Ethernet A broken link in the Ethernet communication system is detected
(2 trip detection logic)
·

Combination meter assembly

·

Radio and display receiver assembly


Navigation System A

WIRING DIAGRAM

E478725E81
5.125,2.604 5.583,2.802 0.458,0.198 10 false I288 5.125,2.771 7.021,3.281 1.896,0.51 10 false Combination Meter Assembly 6.146,1.333 6.604,1.531 0.458,0.198 10 false I/F 5.344,0.99 5.802,1.188 0.458,0.198 10 false ET+ 5.354,1.646 5.813,1.844 0.458,0.198 10 false ET- 5.083,0.99 5.24,1.188 0.156,0.198 10 false 1 5.083,1.646 5.24,1.844 0.156,0.198 10 false 2 0.417,2.729 2.156,3.073 1.74,0.344 10 false Radio and Display Receiver Assembly 0.417,2.552 0.917,2.781 0.5,0.229 10 false I286 1.542,1.125 2.156,1.323 0.615,0.198 10 false ETH+ 1.552,1.781 2.167,1.979 0.615,0.198 10 false ETH- 2.031,0.99 2.188,1.188 0.156,0.198 10 false 2 2.031,1.646 2.188,1.844 0.156,0.198 10 false 1

CAUTION / NOTICE / HINT

NOTICE:
·

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM (Production Date from 2023/04)>PRECAUTION

·

When replacing the combination meter assembly, replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in the combination meter assembly will not match the information from the vehicle and a DTC may be stored.

·

When replacing the combination meter assembly, make sure to update the ECU security key.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>UPDATE ECU SECURITY KEY



HINT:
·

Before disconnecting the connectors for inspection, push each connector in the connection direction and check that it is not lose or disconnected.

·

After disconnecting the connector, check that the connector and terminals are not damaged, deformed or corroded.



PROCEDURE

1.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY)

Pre-procedure1

a.

Disconnect the I286 radio and display receiver assembly connector.


b.

Disconnect the I288 combination meter assembly connector.


Procedure1

c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I286-2 (ETH+) - I288-1 (ET+) Always Below 1 Ω
I286-1 (ETH-) - I288-2 (ET-) Always Below 1 Ω
I286-2 (ETH+) - Body ground Always 10 kΩ or higher
I286-1 (ETH-) - Body ground Always 10 kΩ or higher


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

2.INSPECT COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.INSPECT COMBINATION METER ASSEMBLY
a.

Replace the combination meter assembly with a new one.

HINT:

Click hereVehicle Interior>METER / GAUGE / DISPLAY>COMBINATION METER>REMOVAL



Result:
Proceed to
NEXT



NEXT

3.CLEAR DTC
3.CLEAR DTC
a.

Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs
50002 496

Result:
Proceed to
NEXT



NEXT

4.CHECK FOR DTC
4.CHECK FOR DTC

Pre-procedure1

a.

Turn the ignition switch off.


b.

Turn the ignition switch to ON and wait for 45 seconds.


c.

Turn the ignition switch off.


d.

Turn the ignition switch to ON and wait for 45 seconds.


Procedure1

e.

Check for DTCs and proceed to the following step.

Body Electrical > Navigation System > Trouble Codes
50001 496
Result:
Result Proceed to
DTCs are not output A
DTC U102000 is output B



Post-procedure1

f.

None



A

END (COMBINATION METER ASSEMBLY IS DEFECTIVE)

B

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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