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

NETWORKING  CAN COMMUNICATION SYSTEM(for HV Model)  Tire Pressure Monitor ECU Communication Stop Mode  


DESCRIPTION

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

Tire pressure warning ECU and receiver branch line or connector

·

Power source circuit of tire pressure warning ECU and receiver

·

Tire pressure warning ECU and receiver ground circuit

·

Tire pressure warning ECU and receiver



WIRING DIAGRAM

for M20F-FXS
C416215E04
1.708,3.292 3.167,3.604 1.458,0.313 10 false from Auxiliary Battery 3.885,2.333 5.031,2.646 1.146,0.313 10 false ECU-IGR NO. 1 0.24,1.927 0.771,2.24 0.531,0.313 10 false I235 0.563,1.927 2.563,2.271 2,0.344 10 false No. 11 CAN Junction Connector 1.75,0.844 2.125,1.135 0.375,0.292 10 false 4 1.74,1.458 2.115,1.75 0.375,0.292 10 false 8 5.438,0.865 5.813,1.156 0.375,0.292 10 false 9 5.385,1.458 5.76,1.75 0.375,0.292 10 false 10 5.448,2.333 5.823,2.625 0.375,0.292 10 false 1 5.438,3.167 5.813,3.458 0.375,0.292 10 false 7 5.375,3.979 5.75,4.271 0.375,0.292 10 false 12 5.635,0.979 6.135,1.26 0.5,0.281 10 false CANH 5.156,4.75 5.531,5.042 0.375,0.292 10 false O18 5.667,2.49 6.042,2.781 0.375,0.292 10 false IGR 5.656,3.302 6.031,3.594 0.375,0.292 10 false +B 5.646,4.125 6.021,4.417 0.375,0.292 10 false GND 1.708,2.479 3.167,2.792 1.458,0.313 10 false from IGR NO. 1 Relay 3.917,3.156 5.01,3.417 1.094,0.26 10 false ECU-B NO. 2 5.646,1.573 6.146,1.854 0.5,0.281 10 false CANL 5.458,4.75 6.854,5.333 1.396,0.583 10 false Tire Pressure Warning ECU and Receiver

except M20F-FXS
C506906E02
5.49,5.115 6.875,5.688 1.385,0.573 10 false Tire Pressure Warning ECU and Receiver 5.094,5.115 5.604,5.479 0.51,0.365 10 false O161 0.49,1.333 2.938,1.615 2.448,0.281 10 false No. 12 CAN Junction Connector*1 0.156,1.344 0.646,1.604 0.49,0.26 10 false I224 1.854,0.292 2.344,0.552 0.49,0.26 10 false 8*2*3 5.667,0.385 6.208,0.646 0.542,0.26 10 false CANH 5.656,0.979 6.198,1.24 0.542,0.26 10 false CANL 5.417,0.26 5.906,0.521 0.49,0.26 10 false 9 5.365,0.844 5.854,1.104 0.49,0.26 10 false 10 5.438,3.083 5.927,3.344 0.49,0.26 10 false 1 5.448,3.813 5.938,4.073 0.49,0.26 10 false 7 5.385,4.365 5.875,4.625 0.49,0.26 10 false 12 5.646,3.24 6.188,3.5 0.542,0.26 10 false IGR 5.656,3.958 6.198,4.219 0.542,0.26 10 false +B 5.646,4.49 6.188,4.75 0.542,0.26 10 false GND 3.802,3.073 4.927,3.302 1.125,0.229 10 false ECU-IGR NO. 1 3.885,3.823 5.01,4.052 1.125,0.229 10 false ECU-B NO. 2 1.708,3.948 3.365,4.208 1.656,0.26 10 false from Auxiliary Battery 1.719,3.229 3.375,3.49 1.656,0.26 10 false from IGR NO. 1 Relay 0.156,1.635 0.646,1.896 0.49,0.26 10 false I214 0.49,1.635 2.938,1.917 2.448,0.281 10 false No. 15 CAN Junction Connector*2 0.229,4.427 3.031,4.667 2.802,0.24 10 false *1: for 8ZR-FXE (GTMC Made) 1.771,0.125 2.26,0.385 0.49,0.26 10 false 10*1 1.823,0.698 2.313,0.958 0.49,0.26 10 false 21*1 1.823,0.865 2.313,1.125 0.49,0.26 10 false 19*2*3 0.156,1.938 0.646,2.198 0.49,0.26 10 false I232 0.49,1.938 2.938,2.219 2.448,0.281 10 false No. 42 Junction Connector*3 0.229,4.771 3.031,5.01 2.802,0.24 10 false *2: for 8ZR-FXE (TFTM Made) 0.229,5.167 3.031,5.406 2.802,0.24 10 false *3: for 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 VEHICLE TYPE
a.

Check vehicle type.


Result:
Result Proceed to
for M20F-FXS A
except M20F-FXS B



A

2.CHECK FOR OPEN IN CAN BUS LINES (TIRE PRESSURE WARNING ECU AND RECEIVER BRANCH LINE)

B

4.CHECK FOR OPEN IN CAN BUS LINES (TIRE PRESSURE WARNING ECU AND RECEIVER BRANCH LINE)
2.CHECK FOR OPEN IN CAN BUS LINES (TIRE PRESSURE WARNING ECU AND RECEIVER BRANCH LINE)
a.

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


b.

Disconnect the O18 tire pressure warning ECU and receiver connector.


c.
C346239C72
1.5,0.823 1.917,1.083 0.417,0.26 1.99,2.854 1.823,2.854 1.823,2.854 1.823,2.094 true 1.458,2.854 1.646,2.854 1.646,2.854 1.646,2.094 true 0.115,0.063 0.427,0.26 0.313,0.198 10 false *a 1.604,0.875 2.063,1.073 0.458,0.198 10 false O18 2.073,2.792 2.594,3.052 0.521,0.26 10 false CANL 1,2.792 1.521,3.052 0.521,0.26 10 false CANH
*a Front view of wire harness connector
(to Tire Pressure Warning ECU and Receiver)


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

Standard Resistance:
Tester Connection Condition Specified Condition
O18-9 (CANH) - O18-10 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω



Result:
Result
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (TIRE PRESSURE WARNING ECU AND RECEIVER)

3.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.
C506913C01
1.5,0.667 1.917,0.927 0.417,0.26 1.167,2.531 1.333,2.531 1.333,2.531 1.333,2.115 true 2.313,2.531 2.146,2.531 2.146,2.531 2.146,2.115 true 1.167,1.01 1.333,1.01 1.333,1.01 1.333,1.76 true 0.115,0.063 0.427,0.26 0.313,0.198 10 false *a 1.594,0.719 2.052,0.917 0.458,0.198 10 false O18 0.917,2.458 1.188,2.667 0.271,0.208 10 false +B 2.385,2.448 2.813,2.667 0.427,0.219 10 false GND 0.865,0.938 1.219,1.188 0.354,0.25 10 false IGR
*a Front view of wire harness connector
(to Tire Pressure Warning ECU and Receiver)


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

Standard Resistance:
Tester Connection Condition Specified Condition
O18-12 (GND) - 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
O18-1 (IGR) - Body ground Power switch on (IG) 11 to 14 V
O18-7 (+B) - Body ground Power switch off 11 to 14 V



Result:
Result
OK
NG



OK

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

4.CHECK FOR OPEN IN CAN BUS LINES (TIRE PRESSURE WARNING ECU AND RECEIVER BRANCH LINE)
a.

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


b.

Disconnect the O161 tire pressure warning ECU and receiver connector.


c.
C503908C01
0.323,0.906 0.74,1.177 0.417,0.271 1.438,1.958 1.604,1.958 1.604,1.958 1.604,1.458 true 1.979,1.948 1.813,1.948 1.813,1.948 1.813,1.448 true 0.146,0.156 0.458,0.354 0.313,0.198 10 false *a 0.365,0.958 0.833,1.26 0.469,0.302 10 false O161 0.99,1.885 1.49,2.104 0.5,0.219 10 false CANH 2.052,1.865 2.552,2.083 0.5,0.219 10 false CANL
*a Front view of wire harness connector
(to Tire Pressure Warning ECU and Receiver)


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

Standard Resistance:
Tester Connection Condition Specified Condition
O161-9 (CANH) - O161-10 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω



Result:
Result
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (TIRE PRESSURE WARNING ECU AND RECEIVER)

5.CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)
a.
C503908C02
0.323,0.906 0.74,1.177 0.417,0.271 1.031,1.938 1.198,1.938 1.198,1.938 1.198,1.438 true 2.385,1.917 2.219,1.917 2.219,1.917 2.219,1.417 true 1.031,0.167 1.198,0.167 1.198,0.167 1.198,1 true 0.146,0.156 0.458,0.354 0.313,0.198 10 false *a 0.365,0.948 0.781,1.25 0.417,0.302 10 false O161 0.792,1.865 1.292,2.083 0.5,0.219 10 false +B 2.469,1.833 2.969,2.052 0.5,0.219 10 false GND 0.74,0.094 1.24,0.313 0.5,0.219 10 false IGR
*a Front view of wire harness connector
(to Tire Pressure Warning ECU and Receiver)


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

Standard Resistance:
Tester Connection Condition Specified Condition
O161-12 (GND) - 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
O161-1 (IGR) - Body ground Ignition switch ON 11 to 14 V
O161-7 (+B) - Body ground Ignition switch off 11 to 14 V



Result:
Result
OK
NG



OK

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)