RM36D0EC _58 Vehicle Interior _083095 LIGHTING (INT) _0400584 LIGHTING SYSTEM J

LIGHTING (INT)  LIGHTING SYSTEM  Door Courtesy Switch Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) detects the condition of the courtesy light switch.

WIRING DIAGRAM

E546220E01
1.51,2.667 3.563,3.615 2.052,0.948 10 false Front Door Courtesy Light Switch Assembly LH 1.51,2.51 3.438,3.354 1.927,0.844 10 false N7 1.542,1.25 3.177,2.656 1.635,1.406 10 false Brake Booster with Master Cylinder Assembly* 1.552,1.104 4.375,2.063 2.823,0.958 10 false A121 2.469,0.708 3.792,1.948 1.323,1.24 10 false CTY 2.865,0.583 4.188,1.823 1.323,1.24 10 false 40 2.771,2 4.094,3.24 1.323,1.24 10 false 1 1.531,4.021 3.573,4.917 2.042,0.896 10 false Front Door Courtesy Light Switch Assembly RH 1.521,3.875 3.448,4.719 1.927,0.844 10 false M4 1.5,5.396 3.542,6.26 2.042,0.865 10 false Rear Door Courtesy Light Switch Assembly LH 1.51,6.771 3.531,7.74 2.021,0.969 10 false Rear Door Courtesy Light Switch Assembly RH 1.5,5.26 3.427,6.104 1.927,0.844 10 false N8 1.521,6.625 3.448,7.469 1.927,0.844 10 false M5 4.094,6.646 5.229,7.573 1.135,0.927 10 false Power Distribution Box Assembly 5.375,6.833 6.99,7.677 1.615,0.844 10 false Main Body ECU (Multiplex Network Body ECU) 2.802,3.365 4.125,4.604 1.323,1.24 10 false 1 2.76,4.729 4.083,5.969 1.323,1.24 10 false 1 2.771,6.094 4.094,7.333 1.323,1.24 10 false 1 3.875,4.833 5.208,6.083 1.333,1.25 10 false 6F 3.875,6.219 5.208,7.469 1.333,1.25 10 false 6F 3.875,4.646 5.208,5.896 1.333,1.25 10 false 26 3.917,6.01 5.25,7.26 1.333,1.25 10 false 1 6.354,1.75 7,2.375 0.646,0.625 10 false +B 5.448,1.99 6.781,3.24 1.333,1.25 10 false FLCY 5.469,4.74 6.802,5.99 1.333,1.25 10 false LCTY 5.469,6.125 6.802,7.375 1.333,1.25 10 false RCTY 5.438,3.365 6.771,4.615 1.333,1.25 10 false FRCY 6.344,3.115 6.99,3.74 0.646,0.625 10 false +B 6.344,4.479 6.99,5.104 0.646,0.625 10 false +B 6.344,5.885 6.99,6.51 0.646,0.625 10 false +B 3.854,3.469 5.188,4.719 1.333,1.25 10 false 6C 3.875,2.104 5.208,3.354 1.333,1.25 10 false 6F 2.51,2 3.833,3.24 1.323,1.24 10 false + 2.5,3.375 3.823,4.615 1.323,1.24 10 false + 2.5,4.729 3.823,5.969 1.323,1.24 10 false + 2.479,6.104 3.802,7.344 1.323,1.24 10 false + 3.896,3.292 5.219,4.5 1.323,1.208 10 false 9 3.896,1.917 5.219,3.125 1.323,1.208 10 false 3 5.188,1.99 6.521,3.24 1.333,1.25 10 false 2 5.167,3.344 6.5,4.594 1.333,1.25 10 false 4 5.167,4.719 6.5,5.969 1.333,1.25 10 false 6 5.146,6.073 6.479,7.323 1.333,1.25 10 false 1 3.375,1.219 5.01,2.625 1.635,1.406 10 false * 0.531,7.458 3.031,7.854 2.5,0.396 10 false *: for HV Model 5.365,6.635 6.698,7.833 1.333,1.198 10 false A

CAUTION / NOTICE / HINT

NOTICE:

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


PROCEDURE

1.READ VALUE USING GTS
a.

Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
FR Door Courtesy Switch Status Front door courtesy light switch assembly RH signal Close or Open Close: Front door RH closed
Open: Front door RH open 		-
FL Door Courtesy Switch Status Front door courtesy light switch assembly LH signal Close or Open Close: Front door LH closed
Open: Front door LH open 		-
RR Door Courtesy Switch Status Rear door courtesy light switch assembly RH signal Close or Open Close: Rear door RH closed
Open: Rear door RH open 		-
RL Door Courtesy Switch Status Rear door courtesy light switch assembly LH signal Close or Open Close: Rear door LH closed
Open: Rear door LH open 		-
Body Electrical > Main Body > Data List
Tester Display
FR Door Courtesy Switch Status
FL Door Courtesy Switch Status
RR Door Courtesy Switch Status
RL Door Courtesy Switch Status
50003 449 30,31,32,33
OK:

Normal conditions listed above are displayed.



Result:
Result Proceed to
OK A
NG ("FR Door Courtesy Switch Status" is abnormal) B
NG ("FL Door Courtesy Switch Status" is abnormal) C
NG ("RR Door Courtesy Switch Status" is abnormal) D
NG ("RL Door Courtesy Switch Status" is abnormal) E



A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM>PROBLEM SYMPTOMS TABLE


B

2.INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH

C

5.INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

D

11.INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH

E

14.INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH
2.INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>REMOVAL


3.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the M4 front door courtesy light switch assembly RH connector.


b.

Disconnect the 6C power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
M4-1 (+) - 6C-9 Always Below 1 Ω
M4-1 (+) or 6C-9 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.CHECK POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK POWER DISTRIBUTION BOX ASSEMBLY
a.

Remove the power distribution box assembly.

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

E442698C11
1.448,0.198 1.99,0.406 0.542,0.208 4.969,0.417 5.51,0.625 0.542,0.208 4.406,0.938 4.563,1.26 4.563,1.26 4.719,1.26 true 0.115,0.063 0.427,0.219 0.313,0.156 10 false *a 1.635,0.219 1.979,0.448 0.344,0.229 10 false 6C 5.188,0.438 5.531,0.667 0.344,0.229 10 false A 4.781,1.208 5.177,1.438 0.396,0.229 10 false FRCY
*a Component without harness connected
(Power Distribution Box Assembly) 		- -



b.

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

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


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
6C-9 - A-4 (FRCY) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


5.INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

6.CHECK VEHICLE TYPE

NG

REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>REMOVAL


6.CHECK VEHICLE TYPE
a.

Check vehicle type.


Result:
Result Proceed to
for HV Model A
for Gasoline Model B



A

7.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY)

B

9.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY)
7.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the N7 front door courtesy light switch assembly LH connector.


b.

Disconnect the A121 brake booster with master cylinder assembly connector.


c.

Disconnect the 6F power distribution box assembly connector.


d.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N7-1 (+) - 6F-3 Always Below 1 Ω
N7-1 (+) or 6F-3 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

8.CHECK BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.CHECK BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY
a.

Disconnect the A121 brake booster with master cylinder assembly (No. 1 skid control ECU) connector.


b.

Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
FL Door Courtesy Switch Status Front door courtesy light switch assembly LH signal Close or Open Close: Front door LH closed
Open: Front door LH open 		-
Body Electrical > Main Body > Data List
Tester Display
FL Door Courtesy Switch Status
50003 449 31
OK:

Normal conditions listed above are displayed.



Result:
Proceed to
OK
NG



OK

10.CHECK POWER DISTRIBUTION BOX ASSEMBLY

NG

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

Click hereBrake>BRAKE SYSTEM (OTHER)>BRAKE BOOSTER (for HV Model)>REMOVAL


9.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the N7 front door courtesy light switch assembly LH connector.


b.

Disconnect the 6F power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N7-1 (+) - 6F-3 Always Below 1 Ω
N7-1 (+) or 6F-3 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

10.CHECK POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.CHECK POWER DISTRIBUTION BOX ASSEMBLY
a.

Remove the power distribution box assembly.

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

E546217C01
1.448,0.198 1.99,0.406 0.542,0.208 4.969,0.417 5.51,0.625 0.542,0.208 4.188,0.885 4.344,1.208 4.344,1.208 4.5,1.208 true 0.115,0.063 0.427,0.219 0.313,0.156 10 false *a 1.635,0.219 1.979,0.448 0.344,0.229 10 false 6F 5.188,0.438 5.531,0.667 0.344,0.229 10 false A 4.573,1.146 4.969,1.375 0.396,0.229 10 false FLCY
*a Component without harness connected
(Power Distribution Box Assembly) 		- -



b.

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

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


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
6F-3 - A-2 (FLCY) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


11.INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH

Click hereVehicle Interior>LIGHTING (INT)>REAR DOOR COURTESY SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

12.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH

Click hereVehicle Interior>LIGHTING (INT)>REAR DOOR COURTESY SWITCH>REMOVAL


12.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the M5 rear door courtesy light switch assembly RH connector.


b.

Disconnect the 6F power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
M5-1 (+) - 6F-1 Always Below 1 Ω
M5-1 (+) or 6F-1 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

13.CHECK POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.CHECK POWER DISTRIBUTION BOX ASSEMBLY
a.

Remove the power distribution box assembly.

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

E546217C02
1.458,0.219 1.979,0.427 0.521,0.208 5.01,0.354 5.531,0.563 0.521,0.208 4.635,1.292 4.438,1.292 4.438,1.292 4.104,0.917 true 0.229,0.115 0.542,0.271 0.313,0.156 10 false *a 5.219,0.375 5.375,0.531 0.156,0.156 10 false A 1.646,0.26 1.917,0.448 0.271,0.188 10 false 6F 4.688,1.229 5.229,1.51 0.542,0.281 10 false RCTY
*a Component without harness connected
(Power Distribution Box Assembly) 		- -



b.

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

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


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
6F-1 - A-1 (RCTY) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


14.INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

Click hereVehicle Interior>LIGHTING (INT)>REAR DOOR COURTESY SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

15.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

Click hereVehicle Interior>LIGHTING (INT)>REAR DOOR COURTESY SWITCH>REMOVAL


15.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the N8 rear door courtesy light switch assembly LH connector.


b.

Disconnect the 6F power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N8-1 (+) - 6F-26 Always Below 1 Ω
N8-1 (+) or 6F-26 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

16.CHECK POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

16.CHECK POWER DISTRIBUTION BOX ASSEMBLY
a.

Remove the power distribution box assembly.

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

E546217C03
1.448,0.198 1.99,0.406 0.542,0.208 4.969,0.417 5.51,0.625 0.542,0.208 4.604,0.896 4.76,1.219 4.76,1.219 4.917,1.219 true 0.115,0.063 0.427,0.219 0.313,0.156 10 false *a 1.635,0.219 1.979,0.448 0.344,0.229 10 false 6F 5.188,0.438 5.531,0.667 0.344,0.229 10 false A 4.969,1.156 5.365,1.385 0.396,0.229 10 false LCTY
*a Component without harness connected
(Power Distribution Box Assembly) 		- -



b.

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

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


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
6F-26 - A-6 (LCTY) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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