RM3660EC _57 Power Source / Network _080743 NETWORKING _0598517 CAN COMMUNICATION SYSTEM(for Gasoline Model (NR Series)) J

NETWORKING  CAN COMMUNICATION SYSTEM(for Gasoline Model (NR Series))  Combination Meter ECU Communication Stop Mode  


DESCRIPTION

Detection Item Symptom Trouble Area
Combination Meter ECU Communication Stop Mode Any of the following conditions are met:
·

Communication stop for "Combination Meter" is indicated on the "Communication Bus Check" screen of the GTS.

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·

Communication stop history for "Combination Meter" is indicated on the "Communication Bus Check (Detail)" screen of the GTS. (The Lost Communication Time value for "Combination Meter" is 6 or more.)

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·

Communication system DTCs (DTCs that start with U) that correspond to "Combination Meter ECU Communication Stop Mode" in "DTC Combination Table" are output.

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·

Combination meter assembly main line or connector

·

Power source circuit of combination meter assembly

·

Combination meter assembly ground circuit

·

Combination meter assembly



WIRING DIAGRAM

C506209E01
0.698,1.573 2.833,1.927 2.135,0.354 10 false No. 3 CAN Junction Connector 5.438,0.531 5.896,0.729 0.458,0.198 10 false 9 5.375,1.083 5.833,1.281 0.458,0.198 10 false 25 5.708,0.552 6.219,0.76 0.51,0.208 10 false CANH 5.719,1.323 6.25,1.552 0.531,0.229 10 false CANL 5.729,2.25 6.188,2.448 0.458,0.198 10 false B 5.448,2.135 5.906,2.333 0.458,0.198 10 false 1 4.24,2.125 5.469,2.448 1.229,0.323 10 false HAZ 2.281,2.25 3.51,2.594 1.229,0.344 10 false from Battery 1.073,2.781 3.729,3.125 2.656,0.344 10 false from Engine Stop and Start ECU 5.719,2.771 6.177,2.969 0.458,0.198 10 false IG+ 5.396,2.646 5.854,2.844 0.458,0.198 10 false 38 5.719,3.521 6.177,3.719 0.458,0.198 10 false EP 5.396,3.385 5.854,3.583 0.458,0.198 10 false 19 5.698,4.292 6.156,4.49 0.458,0.198 10 false ES 5.396,4.146 5.854,4.344 0.458,0.198 10 false 23 5.427,4.948 5.885,5.146 0.458,0.198 10 false I4 5.604,4.948 6.813,5.385 1.208,0.438 10 false Combination Meter Assembly 0.365,1.573 0.823,1.771 0.458,0.198 10 false I125 1.594,1.094 2.115,1.365 0.521,0.271 10 false 13 1.635,0.542 2.094,0.74 0.458,0.198 10 false 2

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 Gasoline Model (NR Series))>HOW TO PROCEED WITH TROUBLESHOOTING

·

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 (-) auxiliary 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 Gasoline Model (NR Series))>DIAGNOSIS SYSTEM

·

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



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 LINES (COMBINATION METER ASSEMBLY MAIN LINE)
a.

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


b.

Disconnect the I4 combination meter assembly connector.


c.
C416207C03
1.417,0.458 1.854,0.708 0.438,0.25 0.865,2.865 0.698,2.865 0.698,2.865 0.698,2.115 true 0.865,0.813 0.698,0.813 0.698,0.813 0.698,1.813 true 0.135,0.104 0.448,0.302 0.313,0.198 10 false *a 0.938,0.729 1.521,1.031 0.583,0.302 10 false CANH 1.563,0.5 2.146,0.802 0.583,0.302 10 false I4 0.958,2.781 1.542,3.083 0.583,0.302 10 false CANL
*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
I4-9 (CANH) - I4-25 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω



Result:
Result
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (COMBINATION METER ASSEMBLY)

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.
C416207C04
1.417,0.458 1.854,0.708 0.438,0.25 0.594,2.875 0.427,2.875 0.427,2.875 0.427,2.125 true 0.667,0.719 0.5,0.719 0.5,0.719 0.5,1.469 true 2.823,2.865 2.99,2.865 2.99,2.865 2.99,2.115 true 2.615,0.646 2.448,0.646 2.448,0.646 2.448,1.813 true 0.135,0.104 0.448,0.302 0.313,0.198 10 false *a 0.75,0.646 1.333,0.948 0.583,0.302 10 false B 1.573,0.5 2.156,0.802 0.583,0.302 10 false I4 0.677,2.792 1.26,3.094 0.583,0.302 10 false ES 2.563,2.792 2.979,3.094 0.417,0.302 10 false IG+ 2.698,0.552 3.031,0.885 0.333,0.333 10 false EP
*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
I4-19 (EP) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω
I4-23 (ES) - 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
I4-1 (B) - Body ground Always 11 to 14 V
I4-38 (IG+) - Body ground Ignition switch ON 11 to 14 V



Result:
Result
OK
NG



OK

REPLACE COMBINATION METER ASSEMBLY

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


NG

GO TO STOP AND START SYSTEM (FOR BACKUP BOOST CONVERTER CIRCUIT)

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