RM38N0EC _57 Power Source / Network _111829 NETWORKING _0505699 LIN COMMUNICATION SYSTEM C

NETWORKING  LIN COMMUNICATION SYSTEM  B232588  Door LIN Bus off  


DESCRIPTION

If the main body ECU (multiplex network body ECU) detects a communication error with an ECU connected to the door bus lines for 8 seconds or more, DTC B232588 will be stored.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
B232588 Door LIN Bus off The main body ECU (multiplex network body ECU) detects a communication error with an ECU connected to the door bus lines for 8 seconds or more.
·

Main body ECU (multiplex network body ECU)

·

Power distribution box assembly

·

Multiplex network master switch assembly

·

Power window regulator motor assembly (driver door)

·

Power window regulator motor assembly (front passenger door)

·

Power window regulator motor assembly (rear LH door)

·

Power window regulator motor assembly (rear RH door)

·

Roof sunshade ECU (sliding roof drive gear assembly)*1

·

Kick door control sensor*2

·

Wire harness or connector


Main Body A

*1: w/ Panoramic Fixed Moonroof with One-touch Frosted Glass Control System

*2: w/ Hands Free Power Back Door


WIRING DIAGRAM

B596855E04
1.417,0.49 2.031,0.688 0.615,0.198 10 false LIN2 1.333,1.469 1.948,1.667 0.615,0.198 10 false GND1 3.167,0.5 3.479,0.698 0.313,0.198 10 false 4E 3.167,1.01 3.479,1.208 0.313,0.198 10 false 4B 3.167,1.469 3.479,1.667 0.313,0.198 10 false 4C 3.167,0.281 3.479,0.479 0.313,0.198 10 false 17 3.167,0.792 3.479,0.99 0.313,0.198 10 false 37 3.177,1.26 3.49,1.458 0.313,0.198 10 false 41 5.219,0.323 5.375,0.521 0.156,0.198 10 false 9 5.417,0.469 5.875,0.667 0.458,0.198 10 false LIN 4.979,0.844 5.292,1.042 0.313,0.198 10 false H6 4.99,1.01 6.948,1.594 1.958,0.583 10 false Power Window Regulator Motor Assembly (Rear LH Door) 0.552,2.031 0.865,2.229 0.313,0.198 10 false MB 0.552,2.208 1.708,2.917 1.156,0.708 10 false Main Body ECU (Multiplex Network Body ECU) 5.219,2 5.375,2.198 0.156,0.198 10 false 9 5.417,2.135 5.875,2.333 0.458,0.198 10 false LIN 4.5,2.51 4.813,2.708 0.313,0.198 10 false G5 4.927,7.865 6.844,8.281 1.917,0.417 10 false Power Window Regulator Motor Assembly (Driver Door) 5.219,3.708 5.375,3.906 0.156,0.198 10 false 9 5.427,3.885 5.885,4.083 0.458,0.198 10 false LIN 5.073,4.208 5.385,4.406 0.313,0.198 10 false H5 4.51,2.688 7.104,3.292 2.594,0.604 10 false Power Window Regulator Motor Assembly (Front Passenger Door) 4.906,7.677 5.219,7.875 0.313,0.198 10 false G4 5.083,6.073 5.396,6.271 0.313,0.198 10 false I2 5.083,6.229 6.656,6.625 1.573,0.396 10 false Multiplex Network Master Switch Assembly 5.083,4.396 7.021,4.865 1.938,0.469 10 false Power Window Regulator Motor Assembly (Rear RH Door) 5.167,5.375 5.479,5.573 0.313,0.198 10 false 17 5.156,5.708 5.469,5.906 0.313,0.198 10 false 16 5.417,5.521 6.031,5.719 0.615,0.198 10 false LIN1 5.417,5.844 6.031,6.042 0.615,0.198 10 false LIN2 5.417,7.302 5.875,7.5 0.458,0.198 10 false LIN 5.219,7.167 5.375,7.365 0.156,0.198 10 false 9 0.646,8.49 3.281,8.76 2.635,0.271 10 false : LIN Communication Line 1.177,5.938 1.635,6.135 0.458,0.198 10 false S14 1.188,6.104 3.01,6.406 1.823,0.302 10 false Kick Door Control Sensor*2 0.177,7.083 3.177,7.49 3,0.406 10 false *1: w/ Panoramic Fixed Moonroof with One-touch Frosted Glass Control System 0.167,7.833 2.594,8.083 2.427,0.25 10 false *2: w/ Hands Free Power Back Door 2.354,5.552 2.813,5.75 0.458,0.198 10 false LIN 2.708,5.385 2.865,5.583 0.156,0.198 10 false 1 2.708,3.698 2.865,3.896 0.156,0.198 10 false 7 2.219,3.833 2.833,4.031 0.615,0.198 10 false MPX1 1.906,1.865 3.073,2.406 1.167,0.542 10 false Power Distribution Box Assembly 1.188,4.24 1.5,4.438 0.313,0.198 10 false Q2 1.198,4.406 3.313,4.813 2.115,0.406 10 false Roof Sunshade ECU (Sliding Roof Drive Gear Assembly)*1 1.833,0.333 2.146,0.531 0.313,0.198 10 false 15 1.833,1.333 2.146,1.531 0.313,0.198 10 false 13

CAUTION / NOTICE / HINT

NOTICE:
·

When a power window regulator motor assembly is replaced or removed and reinstalled, it is necessary to perform initialization.

Click hereVehicle Exterior>WINDOW / GLASS>POWER WINDOW CONTROL SYSTEM>INITIALIZATION

·

When the roof sunshade ECU (sliding roof drive gear assembly) is replaced or removed and reinstalled, it is necessary to perform initialization.*

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC FIXED MOONROOF WITH ONE-TOUCH FROSTED GLASS CONTROL SYSTEM>INITIALIZATION

*: w/ Panoramic Fixed Moonroof with One-touch Frosted Glass Control System


·

Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.



PROCEDURE

1.CLEAR DTC

Pre-procedure1

a.

Disconnect the G4 power window regulator motor assembly (driver door) connector.


Procedure1

b.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449
Result:
Proceed to
NEXT



Post-procedure1

c.

None



NEXT

2.CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (DRIVER DOOR)
2.CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (DRIVER DOOR)
a.

After 10 seconds have elapsed, check if the same DTC is output again.

Body Electrical > Main Body > Trouble Codes
50001 449
Result:
Result Proceed to
B232588 is output A
B232588 is not output B




A

3.CLEAR DTC

B

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (DRIVER DOOR)

Click hereVehicle Exterior>WINDOW / GLASS>POWER WINDOW REGULATOR MOTOR (for Front Door)>REMOVAL


3.CLEAR DTC

Pre-procedure1

a.

Disconnect the I2 multiplex network master switch assembly connector.


Procedure1

b.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449
Result:
Proceed to
NEXT



Post-procedure1

c.

None



NEXT

4.CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
4.CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
a.

After 10 seconds have elapsed, check if the same DTC is output again.

Body Electrical > Main Body > Trouble Codes
50001 449
Result:
Result Proceed to
B232588 is output A
B232588 is not output B




A

5.CLEAR DTC

B

21.CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (DRIVER DOOR))
5.CLEAR DTC

Pre-procedure1

a.

Disconnect the G5 power window regulator motor assembly (front passenger door) connector.


Procedure1

b.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449
Result:
Proceed to
NEXT



Post-procedure1

c.

None



NEXT

6.CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (FRONT PASSENGER DOOR)
6.CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (FRONT PASSENGER DOOR)
a.

After 10 seconds have elapsed, check if the same DTC is output again.

Body Electrical > Main Body > Trouble Codes
50001 449
Result:
Result Proceed to
B232588 is output A
B232588 is not output B




A

7.CLEAR DTC

B

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FRONT PASSENGER DOOR)

Click hereVehicle Exterior>WINDOW / GLASS>POWER WINDOW MASTER SWITCH>REMOVAL


7.CLEAR DTC

Pre-procedure1

a.

Disconnect the H5 power window regulator motor assembly (rear RH door) connector.


Procedure1

b.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449
Result:
Proceed to
NEXT



Post-procedure1

c.

None



NEXT

8.CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (REAR RH DOOR)
8.CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (REAR RH DOOR)
a.

After 10 seconds have elapsed, check if the same DTC is output again.

Body Electrical > Main Body > Trouble Codes
50001 449
Result:
Result Proceed to
B232588 is output A
B232588 is not output B




A

9.CLEAR DTC

B

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (REAR RH DOOR)

Click hereVehicle Exterior>WINDOW / GLASS>POWER WINDOW REGULATOR MOTOR (for Rear Door)>REMOVAL


9.CLEAR DTC

Pre-procedure1

a.

Disconnect the H6 power window regulator motor assembly (rear LH door) connector.


Procedure1

b.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449
Result:
Proceed to
NEXT



Post-procedure1

c.

None



NEXT

10.CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (REAR LH DOOR)
10.CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (REAR LH DOOR)
a.

After 10 seconds have elapsed, check if the same DTC is output again.

Body Electrical > Main Body > Trouble Codes
50001 449
Result:
Result Proceed to
B232588 is output A
B232588 is not output B




A

11.SYSTEM CHECK

B

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (REAR LH DOOR)

Click hereVehicle Exterior>WINDOW / GLASS>POWER WINDOW REGULATOR MOTOR (for Rear Door)>REMOVAL


11.SYSTEM CHECK
a.

Check the vehicle specification.


Result:
Result Proceed to
w/ Panoramic Fixed Moonroof with One-touch Frosted Glass Control System A
w/o Panoramic Fixed Moonroof with One-touch Frosted Glass Control System B



A

12.CLEAR DTC

B

17.SYSTEM CHECK
12.CLEAR DTC

Pre-procedure1

a.

Disconnect the Q2 roof sunshade ECU (sliding roof drive gear assembly) connector.


Procedure1

b.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449
Result:
Proceed to
NEXT



Post-procedure1

c.

None



NEXT

13.CHECK ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)
13.CHECK ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)
a.

After 10 seconds have elapsed, check if the DTC is output.

Body Electrical > Main Body > Trouble Codes
50001 449
Result:
Result Proceed to
B232588 is output A
B232588 is not output B




A

14.SYSTEM CHECK

B

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

Click hereVehicle Interior>INTERIOR PANELS / TRIM>ROOF SUNSHADE (for Long Type Panoramic Fixed Moon Roof)>REMOVAL


14.SYSTEM CHECK
a.

Check the vehicle specification.


Result:
Result Proceed to
w/ Hands Free Power Back Door A
w/o Hands Free Power Back Door B



A

15.CLEAR DTC

B

17.SYSTEM CHECK
15.CLEAR DTC

Pre-procedure1

a.

Disconnect the S14 kick door control sensor connector.


Procedure1

b.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449
Result:
Proceed to
NEXT



Post-procedure1

c.

None



NEXT

16.CHECK KICK DOOR CONTROL SENSOR
16.CHECK KICK DOOR CONTROL SENSOR
a.

After 10 seconds have elapsed, check if the DTC is output.

Body Electrical > Main Body > Trouble Codes
50001 449
Result:
Result Proceed to
B232588 is output A
B232588 is not output B




A

17.SYSTEM CHECK

B

REPLACE KICK DOOR CONTROL SENSOR

Click hereVehicle Exterior>DOOR / HATCH>KICK SENSOR>REMOVAL


17.SYSTEM CHECK
a.

Check the vehicle specification.


Result:
Result Proceed to
w/ Panoramic Fixed Moonroof with One-touch Frosted Glass Control System A
w/o Panoramic Fixed Moonroof with One-touch Frosted Glass Control System B



A

18.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - EACH ECU)

B

22.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - EACH ECU)
18.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - EACH ECU)

Pre-procedure1

a.

Disconnect the 4E and 4B power distribution box assembly assembly connector.


Procedure1

b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
4E-17 - Body ground Always 10 kΩ or higher
4E-17 - Other terminals Always 10 kΩ or higher
4B-37 - Body ground Always 10 kΩ or higher
4B-37 - Other terminals Always 10 kΩ or higher


Result:
Proceed to
OK
NG



Post-procedure1

c.

None



OK

19.INSPECT POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

19.INSPECT POWER DISTRIBUTION BOX ASSEMBLY

Pre-procedure1

a.

Remove the power distribution box assembly.

HINT:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL



b.

Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.


Procedure1

c.

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

B583176C06
1.573,0.688 1.99,0.969 0.417,0.281 5.135,0.25 5.552,0.531 0.417,0.281 5.135,1.896 5.552,2.177 0.417,0.281 1.583,2.031 2,2.313 0.417,0.281 2.063,1.615 1.885,1.615 1.885,1.615 1.885,1.271 false 1.677,0.75 1.99,0.948 0.313,0.198 10 false MB 2.125,1.542 2.74,1.74 0.615,0.198 10 false LIN2 5.26,0.302 5.573,0.5 0.313,0.198 10 false 4E 5.26,1.948 5.573,2.146 0.313,0.198 10 false 4B 1.698,2.094 2.01,2.292 0.313,0.198 10 false 4C 0.219,0.125 0.531,0.323 0.313,0.198 10 false *a
*a Component without harness connected
(Power Distribution Box Assembly) 		- -


HINT:

This inspection is to check the LIN communication line in the power distribution box assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU).


Standard Resistance:
Tester Connection Condition Specified Condition
4E-17 or 4B-37 - 4C-41 Always 10 kΩ or higher
MB-15 (LIN2) - Other terminals Always 10 kΩ or higher


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

20.CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


20.CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Pre-procedure1

a.

Install the main body ECU (multiplex network body ECU) to the power distribution box assembly.

HINT:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>INSTALLATION



b.

Connect all power distribution box assembly connectors other than 4B and 4E.


Procedure1

c.

Using a GTS, check the waveform.

B583569C03
1.729,1.615 2.083,1.823 0.354,0.208 1.156,3.177 1.51,3.385 0.354,0.208 0.167,0.135 0.479,0.292 0.313,0.156 10 false *a 4.698,0.917 5.01,1.073 0.313,0.156 10 false *b 4.458,2.458 5.146,2.854 0.688,0.396 10 false GND 1.813,1.625 2.5,2.021 0.688,0.396 10 false 4B 1.24,3.188 1.927,3.583 0.688,0.396 10 false 4E
*a Component with harness connected
(Power Distribution Box Assembly) 		*b Waveform


HINT:

This inspection is to check the LIN communication line in the power distribution box assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU).


OK:
Tester Connection Condition Tool Setting Specified Condition
4E-17 - Body ground Ignition switch ON 2 V/DIV., 200 ms/DIV. Pulse generation
(See waveform)
4B-37 - Body ground Ignition switch ON 2 V/DIV., 200 ms/DIV. Pulse generation
(See waveform)


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


21.CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (DRIVER DOOR))
a.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(I2)Location & Routing

Click Connector(I2)Body>No. 2 Front Door Wire RH / No. 2 Front Door Wire LH>Multiplex Network Master Switch Assembly

I2-16 (LIN2) - Body ground Always 10 kΩ or higher
I2-16 (LIN2) - Other terminals Always 10 kΩ or higher


Result:
Proceed to
OK
NG




OK

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

Click hereVehicle Exterior>WINDOW / GLASS>POWER WINDOW MASTER SWITCH>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

22.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - EACH ECU)

Pre-procedure1

a.

Disconnect the 4E power distribution box assembly assembly connector.


Procedure1

b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
4E-17 - Body ground Always 10 kΩ or higher
4E-17 - Other terminals Always 10 kΩ or higher


Result:
Proceed to
OK
NG



Post-procedure1

c.

None



OK

23.INSPECT POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

23.INSPECT POWER DISTRIBUTION BOX ASSEMBLY

Pre-procedure1

a.

Remove the power distribution box assembly.

HINT:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL



b.

Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.


Procedure1

c.

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

B602409C01
1.573,0.688 1.99,0.969 0.417,0.281 5.135,0.25 5.552,0.531 0.417,0.281 3.427,2.042 3.844,2.323 0.417,0.281 2.063,1.615 1.885,1.615 1.885,1.615 1.885,1.271 false 1.677,0.75 1.99,0.948 0.313,0.198 10 false MB 2.125,1.542 2.74,1.74 0.615,0.198 10 false LIN2 5.26,0.302 5.573,0.5 0.313,0.198 10 false 4E 3.552,2.104 3.865,2.302 0.313,0.198 10 false 4C 0.219,0.125 0.531,0.323 0.313,0.198 10 false *a
*a Component without harness connected
(Power Distribution Box Assembly) 		- -


HINT:

This inspection is to check the LIN communication line in the power distribution box assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU).


Standard Resistance:
Tester Connection Condition Specified Condition
4E-17 - 4C-41 Always 10 kΩ or higher
MB-15 (LIN2) - Other terminals Always 10 kΩ or higher


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

24.CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


24.CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Pre-procedure1

a.

Install the main body ECU (multiplex network body ECU) to the power distribution box assembly.

HINT:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>INSTALLATION



b.

Connect all power distribution box assembly connectors other than 4E.


Procedure1

c.

Using a GTS, check the waveform.

B602410C01
1.146,1.844 1.542,2.115 0.396,0.271 0.094,0.323 0.406,0.479 0.313,0.156 10 false *a 4.74,0.354 5.052,0.51 0.313,0.156 10 false *b 4.469,1.958 5.177,2.344 0.708,0.385 10 false GND 1.26,1.896 1.969,2.281 0.708,0.385 10 false 4E
*a Component with harness connected
(Power Distribution Box Assembly) 		*b Waveform


HINT:

This inspection is to check the LIN communication line in the power distribution box assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU).


OK:
Tester Connection Condition Tool Setting Specified Condition
4E-17 - Body ground Ignition switch ON 2 V/DIV., 200 ms/DIV. Pulse generation
(See waveform)


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL