RM36D0EC _57 Power Source / Network _083091 NETWORKING _0694856 CAN COMMUNICATION SYSTEM(for GTMC Made Gasoline Model) J

NETWORKING  CAN COMMUNICATION SYSTEM(for GTMC Made Gasoline Model)  Power Back Door ECU Communication Stop Mode  


DESCRIPTION

Detection Item Symptom Trouble Area
Power Back Door ECU Communication Stop Mode Communication stop for "Back Door" is indicated on the "Communication Bus Check" screen of the GTS.
Click here(Click here)
·

Multiplex network door ECU branch wire or connector

·

Power source circuit of multiplex network door ECU

·

Multiplex network door ECU ground circuit

·

Multiplex network door ECU



WIRING DIAGRAM

C306906E70
0.292,1.354 0.573,1.5 0.281,0.146 10 false N52 5.208,0.427 5.49,0.583 0.281,0.156 10 false R30 5.198,0.99 5.479,1.146 0.281,0.156 10 false R30 5.208,2.406 5.51,2.625 0.302,0.219 10 false R29 5.198,2.906 5.479,3.083 0.281,0.177 10 false R30 5.208,1.885 5.5,2.083 0.292,0.198 10 false R30 5.208,3.427 5.479,3.583 0.271,0.156 10 false R28 0.302,1.51 2.5,1.708 2.198,0.198 10 false No. 7 CAN Junction Connector 1.656,0.333 1.802,0.49 0.146,0.156 10 false 3 1.656,0.885 1.885,1.052 0.229,0.167 10 false 9 5.302,2.198 5.531,2.365 0.229,0.167 10 false 5 5.25,0.219 5.51,0.375 0.26,0.156 10 false 10 5.25,0.771 5.49,0.969 0.24,0.198 10 false 20 5.292,1.688 5.563,1.865 0.271,0.177 10 false 7 5.292,2.698 5.51,2.854 0.219,0.156 10 false 9 5.281,3.219 5.5,3.406 0.219,0.188 10 false 4 5.604,0.448 6.073,0.604 0.469,0.156 10 false CANP 5.604,0.99 6.073,1.146 0.469,0.156 10 false CANN 5.604,1.906 6.073,2.063 0.469,0.156 10 false ECUB 5.594,2.406 6.063,2.563 0.469,0.156 10 false B 5.604,2.917 6.073,3.073 0.469,0.156 10 false IG 5.615,3.438 6.083,3.594 0.469,0.156 10 false GND 4.052,2.26 4.385,2.427 0.333,0.167 10 false PBD 3.802,1.729 4.74,1.927 0.938,0.198 10 false ECU-B NO.2 3.74,2.771 4.729,3.031 0.99,0.26 10 false ECU-IGR NO.2 5.115,4.177 7.042,4.458 1.927,0.281 10 false Multiplex Network Door ECU 2.167,1.854 3.615,2.115 1.448,0.26 10 false from Battery 2.167,2.385 3.615,2.656 1.448,0.271 10 false from Battery 1.698,2.896 3.146,3.135 1.448,0.24 10 false from IGR NO.2 Relay

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 (for GTMC Made Gasoline Model)>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.

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 (for GTMC Made Gasoline Model)>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 (MULTIPLEX NETWORK DOOR ECU BRANCH WIRE)
a.

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


b.
C502850C01
1.49,0.167 1.958,0.427 0.469,0.26 2.188,1.938 2.344,1.938 2.344,1.938 2.479,1.438 true 2.844,0.365 2.656,0.365 2.656,0.365 2.458,1.104 true 0.104,0.104 0.417,0.302 0.313,0.198 10 false *a 1.594,0.208 2.052,0.406 0.458,0.198 10 false R30 2.896,0.281 3.365,0.479 0.469,0.198 10 false CANP 1.76,1.854 2.375,2.063 0.615,0.208 10 false CANN
*a Front view of wire harness connector
(to Multiplex Network Door ECU)


Disconnect the multiplex network door ECU connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
R30-10 (CANP) - R30-20 (CANN) 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 multiplex network door ECU connectors.


b.

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

C502777C02
3.104,0.5 3.521,0.729 0.417,0.229 1.021,0.479 1.438,0.708 0.417,0.229 5.448,0.396 5.865,0.625 0.417,0.229 0.656,2.073 0.958,2.073 0.958,2.073 1.073,1.656 true 4.115,2.094 3.906,2.094 3.906,2.094 3.792,1.521 true 6.344,2.167 6.135,2.167 6.135,2.167 6.042,1.531 true 6.542,0.719 6.333,0.719 6.333,0.719 6.333,1.438 true 1.104,0.531 1.563,0.729 0.458,0.198 10 false R28 3.188,0.542 3.646,0.74 0.458,0.198 10 false R29 5.531,0.427 5.99,0.625 0.458,0.198 10 false R30 0.302,2 0.76,2.198 0.458,0.198 10 false GND 4.208,2.01 4.667,2.208 0.458,0.198 10 false B 6.594,0.667 6.948,0.865 0.354,0.198 10 false IG 6.406,2.073 6.865,2.271 0.458,0.198 10 false ECUB 0.26,0.156 0.719,0.354 0.458,0.198 10 false *a
*a Front view of wire harness connector
(to Multiplex Network Door ECU) 		- -


Standard Resistance:
Tester Connection Condition Specified Condition
R28-4 (GND) - 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 Condition Specified Condition
R30-7 (ECUB) - Body ground Always 11 to 14 V
R29-5 (B) - Body ground Always 11 to 14 V
R30-9 (IG) - Body ground Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE MULTIPLEX NETWORK DOOR ECU

Click hereVehicle Exterior>DOOR / HATCH>BACK DOOR CLOSER ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR