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

NETWORKING  CAN COMMUNICATION SYSTEM  Blind Spot Monitor Sensor Communication Stop Mode  


DESCRIPTION

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

Blind spot monitor sensor LH branch wire or connector

·

Power source circuit of blind spot monitor sensor LH

·

Blind spot monitor sensor LH ground circuit

·

Blind spot monitor sensor LH



WIRING DIAGRAM

C393703E12
0.313,1.448 0.927,1.646 0.615,0.198 10 false Z31 0.313,1.625 2.656,2.063 2.344,0.438 10 false No. 12 CAN Junction Connector 0.604,2.292 2.948,2.729 2.344,0.438 10 false from Engine Stop and Start ECU*1 1.292,2.906 3.365,3.344 2.073,0.438 10 false from IG1 NO.1 Relay*2 3.604,2.729 4.656,3.073 1.052,0.344 10 false DSS-IG1*2 5.271,3.771 5.885,3.969 0.615,0.198 10 false e2 5.271,3.969 6.458,4.615 1.188,0.646 10 false Blind Spot Monitor Sensor LH 4.958,2.615 5.271,2.813 0.313,0.198 10 false *2 3.854,2.167 4.167,2.365 0.313,0.198 10 false *1 1.823,1.146 2.135,1.344 0.313,0.198 10 false 20 1.833,0.563 2.146,0.76 0.313,0.198 10 false 9 5.344,0.552 5.656,0.75 0.313,0.198 10 false 2 5.333,1.146 5.646,1.344 0.313,0.198 10 false 7 5.271,3.115 5.583,3.313 0.313,0.198 10 false 10 5.344,2.167 5.656,2.365 0.313,0.198 10 false 5 5.604,1.271 6.292,1.563 0.688,0.292 10 false CA1N 5.594,0.667 6.219,0.917 0.625,0.25 10 false CA1P 5.615,2.281 6.302,2.604 0.688,0.323 10 false BLB 5.604,3.229 6.26,3.531 0.656,0.302 10 false BLGD 0.333,4.25 2.771,4.615 2.438,0.365 10 false *2: w/o Stop and Start System 0.333,3.875 2.771,4.24 2.438,0.365 10 false *1: 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



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 (BLIND SPOT MONITOR SENSOR LH BRANCH WIRE)
a.

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


b.
C369127C14
1.5,0.417 1.917,0.667 0.417,0.25 1.531,1.844 1.833,2.5 1.833,2.5 2,2.5 true 1.552,1.656 1.75,1 1.75,1 1.917,1 true 1.969,0.938 2.427,1.135 0.458,0.198 10 false CA1P 0.125,0.135 0.583,0.333 0.458,0.198 10 false *a 2.021,2.438 2.479,2.635 0.458,0.198 10 false CA1N 1.615,0.469 2.073,0.667 0.458,0.198 10 false e2
*a Front view of wire harness connector
(to Blind Spot Monitor Sensor LH)


Disconnect the e2 blind spot monitor sensor LH connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
e2-2 (CA1P) - e2-7 (CA1N) 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.
C369127C15
1.5,0.417 1.917,0.667 0.417,0.25 1.948,1.833 2.292,2.583 2.292,2.583 2.458,2.583 true 0.125,0.135 0.583,0.333 0.458,0.198 10 false *a 2.573,2.51 3.031,2.708 0.458,0.198 10 false BLGD 1.594,0.469 2.052,0.667 0.458,0.198 10 false e2
*a Front view of wire harness connector
(to Blind Spot Monitor Sensor LH)


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

Standard Resistance:
Tester Connection Condition Specified Condition
e2-10 (BLGD) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω



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.

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


b.
C369127C16
1.5,0.417 1.917,0.667 0.417,0.25 1.958,1.625 2.156,0.969 2.156,0.969 2.323,0.969 true 2.417,0.906 2.875,1.104 0.458,0.198 10 false BLB 0.125,0.135 0.583,0.333 0.458,0.198 10 false *a 1.594,0.469 2.052,0.667 0.458,0.198 10 false e2
*a Front view of wire harness connector
(to Blind Spot Monitor Sensor LH)


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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
e2-5 (BLB) - Body ground Ignition switch ON 10.5 to 16 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE BLIND SPOT MONITOR SENSOR LH

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>BLIND SPOT MONITOR SENSOR>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.

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


b.
C369127C16
1.5,0.417 1.917,0.667 0.417,0.25 1.958,1.625 2.156,0.969 2.156,0.969 2.323,0.969 true 2.417,0.906 2.875,1.104 0.458,0.198 10 false BLB 0.125,0.135 0.583,0.333 0.458,0.198 10 false *a 1.594,0.469 2.052,0.667 0.458,0.198 10 false e2
*a Front view of wire harness connector
(to Blind Spot Monitor Sensor LH)


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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
e2-5 (BLB) - Body ground Ignition switch ON 11 to 14 V
Ignition switch off Below 1 V



Result:
Proceed to
OK
NG



OK

REPLACE BLIND SPOT MONITOR SENSOR LH

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>BLIND SPOT MONITOR SENSOR>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR