RM3660EC _57 Power Source / Network _080743 NETWORKING _0392424 CAN COMMUNICATION SYSTEM(for HV Model) J

NETWORKING  CAN COMMUNICATION SYSTEM(for HV Model)  Center Airbag Sensor Communication Stop Mode  


DESCRIPTION

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

Airbag sensor with ECU assembly branch line or connector

·

Power source circuit of airbag sensor with ECU assembly

·

Airbag sensor with ECU assembly ground circuit

·

Airbag sensor with ECU assembly



WIRING DIAGRAM

C473598E18
0.531,1.813 3.438,2.01 2.906,0.198 10 false No. 10 CAN Junction Connector*1 0.198,1.813 0.594,2.01 0.396,0.198 10 false I222 1.75,1.354 2.146,1.552 0.396,0.198 10 false 7*2 1.729,0.75 2.125,0.948 0.396,0.198 10 false 3*2 5.625,0.896 6.083,1.125 0.458,0.229 10 false CAFH 5.344,0.781 5.74,0.979 0.396,0.198 10 false 26 5.344,1.365 5.74,1.563 0.396,0.198 10 false 27 3.844,2.198 4.719,2.375 0.875,0.177 10 false A/BAG-IGR 5.354,2.229 5.75,2.427 0.396,0.198 10 false 36 1.667,2.323 3.333,2.583 1.667,0.26 10 false from IGR NO. 1 Relay 5.635,2.354 6.031,2.552 0.396,0.198 10 false IGR 5.677,3.375 6.073,3.573 0.396,0.198 10 false E1 5.667,4.115 6.063,4.313 0.396,0.198 10 false E2 5.365,3.979 5.76,4.177 0.396,0.198 10 false 32 5.354,3.25 5.75,3.448 0.396,0.198 10 false 33 5.646,1.5 6.135,1.719 0.49,0.219 10 false CAFL 5.115,4.781 5.51,4.979 0.396,0.198 10 false I205 5.427,4.781 6.938,5.333 1.51,0.552 10 false Airbag Sensor with ECU Assembly 0.198,2.073 0.594,2.271 0.396,0.198 10 false I213 0.531,2.063 3.438,2.26 2.906,0.198 10 false No. 13 CAN Junction Connector*2 1.729,0.583 2.125,0.781 0.396,0.198 10 false 1*1 1.75,1.188 2.146,1.385 0.396,0.198 10 false 5*1 0.885,3.583 3.938,3.938 3.052,0.354 10 false *1: for 8ZR-FXE (GTMC Made) or M20F-FXS 0.885,3.917 3.896,4.281 3.01,0.365 10 false *2: for 8ZR-FXE (TFTM Made) or M20G-FXS

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 HV Model)>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 (-) auxiliary 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 auxiliary battery.

HINT:

When disconnecting and reconnecting the auxiliary 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 HV Model)>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 (AIRBAG SENSOR WITH ECU ASSEMBLY MAIN LINE)
a.

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


b.

Disconnect the I205 airbag sensor with ECU assembly connector.


c.
C487963C18
0.219,1 0.656,1.24 0.438,0.24 2.146,1.24 2.646,0.823 2.646,0.823 2.813,0.823 true 2.281,1.281 2.531,1.281 2.531,1.281 2.792,1.281 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 0.313,1.042 0.625,1.24 0.313,0.198 10 false I205 2.875,0.74 3.365,1.01 0.49,0.271 10 false CAFH 2.875,1.198 3.365,1.469 0.49,0.271 10 false CAFL
*a Front view of wire harness connector
(to Airbag Sensor with ECU Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
I205-26 (CANH) - I205-27 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω



Result:
Result
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (AIRBAG SENSOR WITH ECU ASSEMBLY)

2.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.
C487963C19
0.313,0.583 0.75,0.823 0.438,0.24 0.729,1.156 0.896,1.156 0.896,1.156 1.813,1.573 true 2.292,1.615 2.542,1.615 2.542,1.615 2.802,1.615 true 2.823,1.115 2.656,1.115 2.656,1.115 1.938,1.573 true 0.083,0.063 0.396,0.26 0.313,0.198 10 false *a 0.406,0.615 0.719,0.813 0.313,0.198 10 false I205 2.896,1.031 3.385,1.302 0.49,0.271 10 false E1 2.875,1.542 3.271,1.771 0.396,0.229 10 false IGR 0.5,1.094 0.99,1.365 0.49,0.271 10 false E2
*a Front view of wire harness connector
(to Airbag Sensor with ECU Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
I205-32 (E2) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
I205-33 (E1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω



b.

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


c.

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

Standard Voltage:
Tester Connection Condition Specified Condition
I205-36 (IGR) - Body ground Ignition switch ON 11 to 14 V



Result:
Result
OK
NG



OK

REPLACE AIRBAG SENSOR WITH ECU ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)