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

NETWORKING  CAN COMMUNICATION SYSTEM  Combination Meter ECU Communication Stop Mode  


DESCRIPTION

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

Combination meter assembly main wire or connector

·

Power source circuit of combination meter assembly

·

Combination meter assembly ground circuit

·

Combination meter assembly



WIRING DIAGRAM

except Wagon
C393706E07
5.656,0.479 6.135,0.635 0.479,0.156 10 false CANH 5.677,1.281 6.156,1.438 0.479,0.156 10 false CANL 5.688,3.99 6.167,4.146 0.479,0.156 10 false B 5.667,2.615 6.146,2.771 0.479,0.156 10 false IG+ 5.667,4.563 6.146,4.719 0.479,0.156 10 false ET 5.417,0.51 5.74,0.708 0.323,0.198 10 false 9 5.354,1.031 5.635,1.229 0.281,0.198 10 false 25 5.354,2.49 5.667,2.677 0.313,0.188 10 false 38 5.354,3.792 5.635,3.99 0.281,0.198 10 false 22 5.365,4.427 5.771,4.625 0.406,0.198 10 false 23 1.948,0.51 2.802,0.719 0.854,0.208 10 false 6 1.938,1.031 2.781,1.302 0.844,0.271 10 false 17 0.427,1.396 0.938,1.688 0.51,0.292 10 false N221 0.427,1.573 2.563,1.885 2.135,0.313 10 false No. 5 CAN Junction Connector 4.021,3.823 4.885,4.24 0.865,0.417 10 false METER 3.813,3.115 4.719,3.292 0.906,0.177 10 false METER-IG2*1 2.229,3.979 3.823,4.292 1.594,0.313 10 false from Battery 1.594,3.292 3.115,3.49 1.521,0.198 10 false from IG2-NO.2 Relay*1 5.24,4.99 5.823,5.271 0.583,0.281 10 false N22 5.229,5.156 7.063,5.427 1.833,0.271 10 false Combination Meter Assembly 0.906,2.615 3.125,2.865 2.219,0.25 10 false from Engine Stop and Start ECU*2 4.073,2.49 4.375,2.719 0.302,0.229 10 false *2 5.073,3.073 5.375,3.302 0.302,0.229 10 false *1 0.229,4.74 2.625,5.021 2.396,0.281 10 false *1: w/o Stop and Start System 0.24,5.167 2.635,5.448 2.396,0.281 10 false *2: w/ Stop and Start System

for Wagon
C393706E08
5.656,0.479 6.135,0.635 0.479,0.156 10 false CANH 5.677,1.281 6.156,1.438 0.479,0.156 10 false CANL 5.688,3.99 6.167,4.146 0.479,0.156 10 false B 5.667,2.615 6.146,2.771 0.479,0.156 10 false IG+ 5.667,4.563 6.146,4.719 0.479,0.156 10 false ET 5.417,0.51 5.74,0.708 0.323,0.198 10 false 9 5.354,1.031 5.635,1.229 0.281,0.198 10 false 25 5.354,2.49 5.667,2.677 0.313,0.188 10 false 38 5.354,3.792 5.635,3.99 0.281,0.198 10 false 22 5.365,4.427 5.771,4.625 0.406,0.198 10 false 23 1.948,0.51 2.198,0.74 0.25,0.229 10 false 2 1.938,1.031 2.333,1.271 0.396,0.24 10 false 12 0.427,1.396 0.938,1.688 0.51,0.292 10 false N126 0.427,1.573 2.563,1.885 2.135,0.313 10 false No. 6 CAN Junction Connector 4.021,3.823 4.885,4.24 0.865,0.417 10 false METER 3.813,3.115 4.719,3.292 0.906,0.177 10 false METER-IG2*1 2.229,3.979 3.823,4.292 1.594,0.313 10 false from Battery 1.594,3.292 3.115,3.49 1.521,0.198 10 false from IG2-NO.2 Relay*1 5.24,4.99 5.823,5.271 0.583,0.281 10 false N22 5.229,5.156 7.063,5.427 1.833,0.271 10 false Combination Meter Assembly 0.906,2.615 3.125,2.865 2.219,0.25 10 false from Engine Stop and Start ECU*2 4.073,2.49 4.375,2.719 0.302,0.229 10 false *2 5.073,3.073 5.375,3.302 0.302,0.229 10 false *1 0.229,4.74 2.625,5.021 2.396,0.281 10 false *1: w/o Stop and Start System 0.24,5.167 2.635,5.448 2.396,0.281 10 false *2: w/ Stop and Start System

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

·

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



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 (COMBINATION METER ASSEMBLY MAIN WIRE)
a.

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


b.
C406366C28
1.5,0.125 1.885,0.385 0.385,0.26 1.375,2.042 1.156,2.042 1.156,2.042 0.885,1.385 true 1.646,1.833 1.427,1.833 1.427,1.833 0.885,1.167 true 0.115,0.083 0.427,0.24 0.313,0.156 10 false *a 1.573,0.167 1.885,0.323 0.313,0.156 10 false N22 1.708,1.74 2.198,1.938 0.49,0.198 10 false CANH 1.438,1.917 1.927,2.115 0.49,0.198 10 false CANL
*a Front view of wire harness connector
(to Combination Meter Assembly)


Disconnect the N22 combination meter assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N22-9 (CANH) - N22-25 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

NG

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.
C406366C29
1.5,0.125 1.885,0.385 0.385,0.26 0.365,1.76 0.51,1.76 0.51,1.76 0.656,1.385 true 2.792,1.167 3.031,0.865 3.031,0.865 3.177,0.865 true 0.115,0.083 0.427,0.24 0.313,0.156 10 false *a 1.573,0.167 1.885,0.323 0.313,0.156 10 false N22 0.125,1.656 0.615,1.854 0.49,0.198 10 false ET 3.219,0.75 3.417,0.948 0.198,0.198 10 false B
*a Front view of wire harness connector
(to Combination Meter Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
N22-23 (ET) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω



b.

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


c.

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

Standard Voltage:
Tester Connection Condition Specified Condition
N22-22 (B) - Body ground Always 11 to 14 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.
C406366C30
1.5,0.125 1.885,0.385 0.385,0.26 3.073,1.823 2.927,1.823 2.927,1.823 2.771,1.375 true 0.115,0.083 0.427,0.24 0.313,0.156 10 false *a 1.573,0.167 1.885,0.323 0.313,0.156 10 false N22 3.135,1.719 3.427,1.979 0.292,0.26 10 false IG+
*a Front view of wire harness connector
(to Combination Meter Assembly)


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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
N22-38 (IG+) - Body ground Ignition switch ON 10.5 to 16 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE COMBINATION METER ASSEMBLY

Click hereVehicle Interior>METER / GAUGE / DISPLAY>COMBINATION METER>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.
C406366C30
1.5,0.125 1.885,0.385 0.385,0.26 3.073,1.823 2.927,1.823 2.927,1.823 2.771,1.375 true 0.115,0.083 0.427,0.24 0.313,0.156 10 false *a 1.573,0.167 1.885,0.323 0.313,0.156 10 false N22 3.135,1.719 3.427,1.979 0.292,0.26 10 false IG+
*a Front view of wire harness connector
(to Combination Meter Assembly)


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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
N22-38 (IG+) - Body ground Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE COMBINATION METER ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR