RM35X0E _57 Power Source / Network _078518 NETWORKING _0381088 CAN COMMUNICATION SYSTEM J

NETWORKING  CAN COMMUNICATION SYSTEM  Radio Receiver Assembly Communication Stop Mode  


DESCRIPTION

Detection Item Symptom Trouble Area
Radio Receiver Assembly Communication Stop Mode Communication stop for "Display and Navigation (AVN)" is indicated on the "Communication Bus Check" screen of the GTS.
(Click here)
·

Radio and display receiver assembly branch wire or connector

·

Power source circuit of radio and display receiver assembly

·

Radio and display receiver assembly ground circuit

·

Radio and display receiver assembly



WIRING DIAGRAM

C405928E02
5.135,5.042 6.813,5.458 1.677,0.417 10 false Radio and Display Receiver Assembly 5.688,0.427 6.302,0.625 0.615,0.198 10 false CANH 5.677,0.938 6.292,1.135 0.615,0.198 10 false CANL 5.646,1.854 6.26,2.052 0.615,0.198 10 false +B1 5.635,4.635 6.25,4.833 0.615,0.198 10 false GND1 5.667,4.135 6.281,4.333 0.615,0.198 10 false IG 5.656,2.99 6.271,3.188 0.615,0.198 10 false ACC1 5.281,0.406 5.896,0.604 0.615,0.198 10 false O7 5.281,0.938 5.896,1.135 0.615,0.198 10 false O7 5.292,1.854 5.906,2.052 0.615,0.198 10 false O5 5.292,2.979 5.906,3.177 0.615,0.198 10 false O5 5.292,4.125 5.906,4.323 0.615,0.198 10 false O7 5.281,4.635 5.896,4.833 0.615,0.198 10 false O5 5.292,0.208 5.552,0.406 0.26,0.198 10 false 13 5.333,4.417 5.49,4.615 0.156,0.198 10 false 1 5.313,3.917 5.615,4.125 0.302,0.208 10 false 19 5.302,2.771 5.594,2.969 0.292,0.198 10 false 15 5.333,1.656 5.49,1.854 0.156,0.198 10 false 4 5.302,0.729 5.542,0.927 0.24,0.198 10 false 14 1.563,0.302 1.865,0.521 0.302,0.219 10 false 9 1.542,0.813 1.75,1.01 0.208,0.198 10 false 20 0.125,1.344 2.458,1.698 2.333,0.354 10 false No. 7 CAN Junction Connector 0.115,1.188 0.729,1.385 0.615,0.198 10 false N127 3.396,1.719 4.281,2.125 0.885,0.406 10 false RADIO*2 3.323,2.813 4.271,3.146 0.948,0.333 10 false ECU-ACC*2 3.25,3.948 4.365,4.292 1.115,0.344 10 false ECU-IG1 NO.3 1.427,1.875 2.406,2.177 0.979,0.302 10 false from Battery*2 1.188,3.01 2.458,3.302 1.271,0.292 10 false from ACC Relay*2 1,4.135 2.49,4.417 1.49,0.281 10 false from IG1 NO.1 Relay 0.208,2.427 2.438,2.854 2.229,0.427 10 false from Engine Stop and Start ECU*1 3.594,2.302 3.833,2.5 0.24,0.198 10 false *1 3.563,3.417 3.802,3.615 0.24,0.198 10 false *1 4.313,2.854 4.552,3.052 0.24,0.198 10 false *2 4.271,1.76 4.51,1.958 0.24,0.198 10 false *2 0.344,4.958 3.021,5.344 2.677,0.385 10 false *1: w/ Stop and Start System 0.354,5.302 3.031,5.688 2.677,0.385 10 false *2: w/o Stop and Start System 0.188,3.563 2.417,3.99 2.229,0.427 10 false from Engine Stop and Start ECU*1

CAUTION / NOTICE / HINT

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


NOTICE:
·

Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING

·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 10 minutes or more before measuring the resistance.

·

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY

·

When disconnecting and reconnecting the battery.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>WORK PROCEDURE

HINT:

When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>AUTOMATIC LEARNING CHART


·

Some parts must be initialized and set when replacing or removing and installing parts.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>WORK PROCEDURE

·

After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

DTC check procedure: Turn the ignition switch to ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.

·

After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM>DIAGNOSIS SYSTEM



HINT:
·

Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.

·

When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.



PROCEDURE

1.CHECK FOR OPEN IN CAN BUS WIRE (RADIO AND DISPLAY RECEIVER ASSEMBLY BRANCH WIRE)
a.

Disconnect the cable from the negative (-) battery terminal.


b.
C369143C36
1.5,0.417 1.917,0.667 0.417,0.25 1.885,2.177 1.583,1.167 1.583,1.167 1.417,1.167 true 2.042,2.167 1.75,1 1.75,1 1.583,1 true 0.094,0.083 0.406,0.281 0.313,0.198 10 false *a 1.625,0.458 1.938,0.656 0.313,0.198 10 false O7 1.021,1.104 1.51,1.302 0.49,0.198 10 false CANH 1.188,0.938 1.677,1.135 0.49,0.198 10 false CANL
*a Front view of wire harness connector
(to Radio and Display Receiver Assembly)


Disconnect the O7 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
O7-13 (CANH) - O7-14 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

NG

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.

Disconnect the O5 radio and display receiver assembly connector.

C371295C48
1.938,0.094 2.302,0.302 0.365,0.208 5.167,0.063 5.531,0.271 0.365,0.208 1.417,0.76 1.167,0.5 1.167,0.5 1,0.5 true 4.594,1.104 4.344,1.271 4.344,1.271 4.177,1.271 true 0.073,0.083 0.385,0.281 0.313,0.198 10 false *a 2.042,0.125 2.354,0.323 0.313,0.198 10 false O5 5.271,0.094 5.583,0.292 0.313,0.198 10 false O7 0.563,0.427 1.031,0.615 0.469,0.188 10 false GND1 4.01,1.208 4.479,1.396 0.469,0.188 10 false IG
*a Front view of wire harness connector
(to Radio and Display Receiver Assembly) 		- -



b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O5-1 (GND1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω



c.

Reconnect the cable to the negative (-) battery terminal.


d.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
O7-19 (IG) - Body ground Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

3.CHECK VEHICLE TYPE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK VEHICLE TYPE
a.

Check for vehicle type.


Result:
Result Proceed to
w/ Stop and Start System A
w/o Stop and Start System B



A

4.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

B

5.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
4.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.
C414445C01
1.531,0.125 1.938,0.385 0.406,0.26 2.146,1.979 2.26,1.979 2.26,1.979 2.542,1.281 true 2.583,1.021 2.792,0.469 2.792,0.469 2.917,0.469 true 0.094,0.063 0.417,0.354 0.323,0.292 10 false *a 1.646,0.167 1.958,0.365 0.313,0.198 10 false O5 1.75,1.906 2.365,2.104 0.615,0.198 10 false ACC1 2.948,0.385 3.406,0.583 0.458,0.198 10 false +B1
*a Front view of wire harness connector
(to Radio and Display Receiver Assembly)


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

Standard Voltage:
Tester Connection Condition Specified Condition
O5-4 (+B1) - Body ground Always 10.5 to 16 V
O5-15 (ACC1) - Body ground Ignition switch ON 10.5 to 16 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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


NG

GO TO STOP AND START SYSTEM

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>Backup Boost Converter Circuit


5.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.
C414445C01
1.531,0.125 1.938,0.385 0.406,0.26 2.146,1.979 2.26,1.979 2.26,1.979 2.542,1.281 true 2.583,1.021 2.792,0.469 2.792,0.469 2.917,0.469 true 0.094,0.063 0.417,0.354 0.323,0.292 10 false *a 1.646,0.167 1.958,0.365 0.313,0.198 10 false O5 1.75,1.906 2.365,2.104 0.615,0.198 10 false ACC1 2.948,0.385 3.406,0.583 0.458,0.198 10 false +B1
*a Front view of wire harness connector
(to Radio and Display Receiver Assembly)


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

Standard Voltage:
Tester Connection Condition Specified Condition
O5-4 (+B1) - Body ground Always 11 to 14 V
O5-15 (ACC1) - Body ground Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR