RM35X0E _56 Audio / Visual / Telematics _079315 PARK ASSIST / MONITORING _0385738 BLIND SPOT MONITOR SYSTEM C

PARK ASSIST / MONITORING  BLIND SPOT MONITOR SYSTEM  U0232  Lost Communication with Blind Spot Monitor Slave Module  


DESCRIPTION

This DTC is stored when the blind spot monitor sensor LH judges that there is a communication problem with the blind spot monitor sensor RH.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0232 Lost Communication with Blind Spot Monitor Slave Module The blind spot monitor sensor (master) cannot receive signals from the blind spot monitor sensor (slave)
·

Open or short in CAN bus main wire or connector

·

Blind spot monitor sensor RH

·

Power source circuit of blind spot monitor sensor RH

·

Blind spot monitor sensor RH ground circuit

·

Blind spot monitor sensor LH



WIRING DIAGRAM

E382473E02
5.646,2.104 6.813,2.583 1.167,0.479 10 false Blind Spot Monitor Sensor LH 5.646,1.948 6.229,2.208 0.583,0.26 10 false e2 3.271,1.969 3.719,2.198 0.448,0.229 10 false e3 3.26,2.125 4.427,2.604 1.167,0.479 10 false Blind Spot Monitor Sensor RH 5.646,0.458 6.094,0.688 0.448,0.229 10 false CA2P 3.875,0.458 4.323,0.688 0.448,0.229 10 false CA2P 3.885,1.104 4.333,1.333 0.448,0.229 10 false CA2N 5.625,1.115 6.073,1.344 0.448,0.229 10 false CA2N 4.375,0.458 4.688,0.688 0.313,0.229 10 false 1 5.479,0.458 5.792,0.688 0.313,0.229 10 false 1 5.469,1.104 5.781,1.333 0.313,0.229 10 false 6 4.365,1.125 4.677,1.354 0.313,0.229 10 false 6 3.281,0.885 3.594,1.115 0.313,0.229 10 false BRB 1.927,1.063 2.938,1.313 1.01,0.25 10 false DSS-IG1*2 2.688,0.292 3,0.521 0.313,0.229 10 false *1 2.698,0.792 3.01,1.021 0.313,0.229 10 false *2 0.177,0.906 1.583,1.188 1.406,0.281 10 false from IG1 NO.1 Relay 0.167,0.292 1.5,0.719 1.333,0.427 10 false from Engine Stop and Start ECU 3.104,0.771 3.417,1 0.313,0.229 10 false 5 0.177,2.104 2.167,2.354 1.99,0.25 10 false *1: w/ Stop and Start System 0.177,2.396 2.167,2.646 1.99,0.25 10 false *2: w/o Stop and Start System 3.042,1.26 3.354,1.49 0.313,0.229 10 false 10 3.302,1.375 4,1.625 0.698,0.25 10 false BRGD

CAUTION / NOTICE / HINT

NOTICE:
·

When checking for DTCs, make sure that the blind spot monitor system is turn on.

·

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 1 minute or more before measuring the resistance.

·

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY

·

When disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected.

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




HINT:
·

Operating the ignition switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.

·

Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.



PROCEDURE

1.CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BATTERY AND BODY GROUND)
a.
E375699C34
1.5,0.229 1.958,0.521 0.458,0.292 2.01,1.396 2.521,1.833 2.521,1.833 2.646,1.833 true 2.01,1.156 2.448,0.615 2.448,0.615 2.573,0.615 true 2.698,1.76 3.25,1.969 0.552,0.208 10 false BRGD 1.594,0.292 2.146,0.5 0.552,0.208 10 false e3 0.083,0.052 0.635,0.26 0.552,0.208 10 false *a 2.698,0.531 3.25,0.74 0.552,0.208 10 false BRB
*a Front view of wire harness connector
(to Blind Spot Monitor Sensor RH)


Disconnect the blind spot monitor sensor RH connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
e3-10 (BRGD) - Body ground Always Below 1 Ω



c.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition

*1: w/o Stop and Start System

*2: w/ Stop and Start System

e3-5 (BRB) - Body ground Ignition switch ON 11 to 14 V*1
10.5 to 16 V*2
e3-5 (BRB) - Body ground Ignition switch off Below 1 V



Result:
Result Proceed to
OK A
NG (w/o Stop and Start System) B
NG (w/ Stop and Start System) C



A

2.CHECK FOR OPEN OR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR LH)

B

REPAIR OR REPLACE CAN LINE OR CONNECTOR

C

GO TO STOP AND START SYSTEM

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


2.CHECK FOR OPEN OR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR LH)
a.
E334330C77
1.479,1.813 2,2.104 0.521,0.292 1.427,0.219 1.854,0.51 0.427,0.292 0.75,0.781 0.938,0.781 0.938,0.781 1.375,1.052 true 0.75,1.49 0.938,1.49 0.938,1.49 1.365,1.229 true 1,2 1.167,2 1.167,2 1.646,2.365 true 2.25,2.833 2.438,3.135 2.438,3.135 2.552,3.135 true 0.24,1.896 0.552,2.052 0.313,0.156 10 false *b 0.177,0.198 0.49,0.354 0.313,0.156 10 false *a 1.573,1.885 2.063,2.135 0.49,0.25 10 false N8 1.5,0.281 1.885,0.51 0.385,0.229 10 false e2 0.333,0.708 0.948,0.906 0.615,0.198 10 false CA2P 0.344,1.406 0.958,1.604 0.615,0.198 10 false CA2N 2.667,3.052 3.281,3.25 0.615,0.198 10 false BAT 0.698,1.917 1.313,2.115 0.615,0.198 10 false CG
*a Front view of wire harness connector
(to Blind Spot Monitor Sensor LH)
*b Front view of wire harness connector
(DLC3)


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


b.

Disconnect the 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
e2-1 (CA2P) - e2-6 (CA2N) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
e2-1 (CA2P) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
e2-6 (CA2N) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
e2-1 (CA2P) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
e2-6 (CA2N) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher



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

3.CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR RH)
3.CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR RH)
a.
E334330C78
1.479,1.813 1.99,2.094 0.51,0.281 1.396,0.198 1.854,0.49 0.458,0.292 0.75,0.781 0.938,0.781 0.938,0.781 1.385,1.063 true 0.75,1.49 0.938,1.49 0.938,1.49 1.365,1.229 true 1,2 1.167,2 1.167,2 1.646,2.365 true 2.25,2.833 2.438,3.135 2.438,3.135 2.552,3.135 true 0.24,1.896 0.552,2.052 0.313,0.156 10 false *b 0.177,0.198 0.49,0.354 0.313,0.156 10 false *a 1.563,1.875 2.052,2.073 0.49,0.198 10 false N8 1.49,0.26 1.917,0.458 0.427,0.198 10 false e3 0.333,0.708 0.948,0.906 0.615,0.198 10 false CA2P 0.344,1.406 0.958,1.604 0.615,0.198 10 false CA2N 2.635,3.063 3.25,3.26 0.615,0.198 10 false BAT 0.729,1.917 1.344,2.115 0.615,0.198 10 false CG
*a Front view of wire harness connector
(to Blind Spot Monitor Sensor RH)
*b Front view of wire harness connector
(DLC3)


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


b.

Disconnect the blind spot monitor sensor RH connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
e3-1 (CA2P) - e3-6 (CA2N) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
e3-1 (CA2P) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
e3-6 (CA2N) - N8-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
e3-1 (CA2P) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher
e3-6 (CA2N) - N8-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE BLIND SPOT MONITOR SENSOR RH

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


NG

REPAIR OR REPLACE CAN LINE OR CONNECTOR