RM3660EC _58 Vehicle Interior _080785 LIGHTING (INT) _0600096 LIGHTING SYSTEM(for NR Series Engine) J

LIGHTING (INT)  LIGHTING SYSTEM(for NR Series Engine)  Door Unlock Detection Switch Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) detects the condition of each door unlock detection switch.

WIRING DIAGRAM

E394532E20
1.052,0.906 1.51,1.104 0.458,0.198 10 false L4 1.052,1.083 4.573,1.281 3.521,0.198 10 false Front Door Lock with Motor Assembly LH 2.438,0.656 3.052,0.854 0.615,0.198 10 false LSSR 1.75,0.656 1.906,0.854 0.156,0.198 10 false E 1.542,0.656 1.698,0.854 0.156,0.198 10 false 7 2.438,1.646 3.052,1.844 0.615,0.198 10 false LSSR 2.438,2.979 3.052,3.177 0.615,0.198 10 false LSSR 2.438,4.167 3.052,4.365 0.615,0.198 10 false LSSR 1.75,1.646 1.906,1.844 0.156,0.198 10 false E 1.75,2.969 1.906,3.167 0.156,0.198 10 false E 1.75,4.156 1.906,4.354 0.156,0.198 10 false E 2.896,1.635 3.052,1.833 0.156,0.198 10 false 7 1.552,1.635 1.708,1.833 0.156,0.198 10 false 8 2.885,0.635 3.042,0.833 0.156,0.198 10 false 8 1.552,4.135 1.76,4.333 0.208,0.198 10 false 9 2.885,2.948 3.177,3.156 0.292,0.208 10 false 6 1.052,1.927 1.365,2.125 0.313,0.198 10 false K5 1.052,2.094 4.573,2.292 3.521,0.198 10 false Front Door Lock with Motor Assembly RH 0.896,3.25 1.208,3.448 0.313,0.198 10 false N1 0.896,3.417 4.104,3.927 3.208,0.51 10 false Rear Door Lock with Motor Assembly LH 1.063,4.469 1.375,4.667 0.313,0.198 10 false M1 1.063,4.625 4.271,4.823 3.208,0.198 10 false Rear Door Lock with Motor Assembly RH 4.104,0.667 4.417,0.865 0.313,0.198 10 false 13 4.094,1.646 4.406,1.844 0.313,0.198 10 false 12 4.104,2.969 4.417,3.167 0.313,0.198 10 false 14 4.323,3.448 4.635,3.646 0.313,0.198 10 false 4F 4.323,3.594 5.948,4.219 1.625,0.625 10 false Driver Side Junction Block Assembly 1.552,2.938 1.708,3.146 0.156,0.208 10 false 9 5.958,2.958 6.115,3.156 0.156,0.198 10 false 5 5.906,1.646 6.219,1.844 0.313,0.198 10 false 17 5.896,0.656 6.208,0.854 0.313,0.198 10 false 19 6.167,0.583 6.781,0.781 0.615,0.198 10 false LSFL 6.156,1.583 6.771,1.781 0.615,0.198 10 false LSFR 6.156,2.917 6.615,3.115 0.458,0.198 10 false LSR 5.313,4.76 6.969,5.552 1.656,0.792 10 false Main Body ECU (Multiplex Network Body ECU) 5.302,4.604 5.615,4.802 0.313,0.198 10 false MB 6.594,1.333 6.906,1.531 0.313,0.198 10 false +B 6.583,0.365 6.896,0.563 0.313,0.198 10 false +B 6.594,2.688 6.906,2.885 0.313,0.198 10 false +B 2.896,4.135 3.135,4.354 0.24,0.219 10 false 6

CAUTION / NOTICE / HINT

NOTICE:

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

*: w/ Smart Entry and Start System



PROCEDURE

1.READ VALUE USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Main Body / Data List.


e.

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 Lock Pos Front door RH unlock detection switch signal LOCK or UNLOCK LOCK: Front door RH locked
UNLOCK: Front door RH unlocked 		-
FL Door Lock Pos Front door LH unlock detection switch signal LOCK or UNLOCK LOCK: Front door LH locked
UNLOCK: Front door LH unlocked 		-
RR-Door Lock Pos SW Rear door RH unlock detection switch signal OFF or ON OFF: Rear door RH locked
ON: Rear door RH unlocked 		-
RL-Door Lock Pos SW Rear door LH unlock detection switch signal OFF or ON OFF: Rear door LH locked
ON: Rear door LH unlocked 		-
Body Electrical > Main Body > Data List
Tester Display
FR Door Lock Pos
FL Door Lock Pos
RR-Door Lock Pos SW
RL-Door Lock Pos SW
50003 123 196,198,51,52
OK:

Normal conditions listed above are displayed.



Result:
Result Proceed to
OK A
NG ("FL Door Lock Pos" is not normal) B
NG ("FR Door Lock Pos" is not normal) C
NG ("RL-Door Lock Pos SW" and "RR-Door Lock Pos SW" are not normal) D



A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM (for NR Series Engine)>PROBLEM SYMPTOMS TABLE


B

2.INSPECT FRONT DOOR W/MOTOR LOCK ASSEMBLY LH

C

5.INSPECT FRONT DOOR W/MOTOR LOCK ASSEMBLY RH

D

8.INSPECT REAR DOOR W/MOTOR LOCK ASSEMBLY LH
2.INSPECT FRONT DOOR W/MOTOR LOCK ASSEMBLY LH
a.

Remove the front door lock with motor assembly LH.

Click hereVehicle Interior>DOOR LOCK>FRONT DOOR LOCK>REMOVAL


b.

Inspect the front door lock with motor assembly LH.

Click hereVehicle Interior>DOOR LOCK>FRONT DOOR LOCK>INSPECTION


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH - DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND BODY GROUND)

NG

REPLACE FRONT DOOR W/MOTOR LOCK ASSEMBLY LH

Click hereVehicle Interior>DOOR LOCK>FRONT DOOR LOCK>REMOVAL


3.CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH - DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND BODY GROUND)
a.

Disconnect the 4F driver side junction block assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
L4-8 (LSSR) - 4F-13 Always Below 1 Ω
L4-8 (LSSR) or 4F-13 - Body ground Always 10 kΩ or higher
L4-7 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

4.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
E333581C58
1.333,0.365 1.625,0.583 0.292,0.219 4.76,0.5 5.052,0.719 0.292,0.219 5.167,1.115 5.396,1.469 false 0.167,0.146 0.479,0.302 0.313,0.156 10 false *a 1.406,0.396 1.865,0.625 0.458,0.229 10 false 4F 4.823,0.531 5.281,0.76 0.458,0.229 10 false MB 5.458,1.458 6.135,1.708 0.677,0.25 10 false LSFL
*a Component without harness connected
(Driver Side Junction Block Assembly) 		- -


a.

Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

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


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
4F-13 - MB-19 (LSFL) 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 DRIVER SIDE JUNCTION BLOCK ASSEMBLY

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


5.INSPECT FRONT DOOR W/MOTOR LOCK ASSEMBLY RH
a.

Remove the front door lock with motor assembly RH.

Click hereVehicle Interior>DOOR LOCK>FRONT DOOR LOCK>REMOVAL


b.

Inspect the front door lock with motor assembly RH.

Click hereVehicle Interior>DOOR LOCK>FRONT DOOR LOCK>INSPECTION


Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH - DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND BODY GROUND)

NG

REPLACE FRONT DOOR W/MOTOR LOCK ASSEMBLY RH

Click hereVehicle Interior>DOOR LOCK>FRONT DOOR LOCK>REMOVAL


6.CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH - DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND BODY GROUND)
a.

Disconnect the 4F driver side junction block assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
K5-7 (LSSR) - 4F-12 Always Below 1 Ω
K5-7 (LSSR) or 4F-12 - Body ground Always 10 kΩ or higher
K5-8 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

7.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
E333581C59
1.333,0.365 1.625,0.583 0.292,0.219 4.76,0.5 5.052,0.719 0.292,0.219 4.979,1.115 5.208,1.469 false 0.167,0.146 0.479,0.302 0.313,0.156 10 false *a 1.406,0.396 1.865,0.625 0.458,0.229 10 false 4F 4.823,0.531 5.281,0.76 0.458,0.229 10 false MB 5.094,1.49 6.073,1.708 0.979,0.219 10 false LSFR
*a Component without harness connected
(Driver Side Junction Block Assembly) 		- -


a.

Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

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


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
4F-12 - MB-17 (LSFR) 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 DRIVER SIDE JUNCTION BLOCK ASSEMBLY

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


8.INSPECT REAR DOOR W/MOTOR LOCK ASSEMBLY LH
a.

Remove the rear door lock with motor assembly LH.

Click hereVehicle Interior>DOOR LOCK>REAR DOOR LOCK>REMOVAL


b.

Inspect the rear door lock with motor assembly LH.

Click hereVehicle Interior>DOOR LOCK>REAR DOOR LOCK>INSPECTION


Result:
Proceed to
OK
NG



OK

9.INSPECT REAR DOOR W/MOTOR LOCK ASSEMBLY RH

NG

REPLACE REAR DOOR W/MOTOR LOCK ASSEMBLY LH

Click hereVehicle Interior>DOOR LOCK>REAR DOOR LOCK>REMOVAL


9.INSPECT REAR DOOR W/MOTOR LOCK ASSEMBLY RH
a.

Remove the rear door lock with motor assembly RH.

Click hereVehicle Interior>DOOR LOCK>REAR DOOR LOCK>REMOVAL


b.

Inspect the rear door lock with motor assembly RH.

Click hereVehicle Interior>DOOR LOCK>REAR DOOR LOCK>INSPECTION


Result:
Proceed to
OK
NG



OK

10.CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK WITH MOTOR ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND BODY GROUND)

NG

REPLACE REAR DOOR W/MOTOR LOCK ASSEMBLY RH

Click hereVehicle Interior>DOOR LOCK>REAR DOOR LOCK>REMOVAL


10.CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK WITH MOTOR ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND BODY GROUND)
a.

Disconnect the 4F driver side junction block assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N1-6 (LSSR) - 4F-14 Always Below 1 Ω
N1-9 (E) - Body ground Always Below 1 Ω
M1-6 (LSSR) - 4F-14 Always Below 1 Ω
M1-9 (E) - Body ground Always Below 1 Ω
N1-6 (LSSR), M1-6 (LSSR) or 4F-14 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

11.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
E333581C60
1.333,0.365 1.625,0.583 0.292,0.219 4.76,0.5 5.052,0.719 0.292,0.219 3.719,1.125 3.948,1.479 false 0.167,0.146 0.479,0.302 0.313,0.156 10 false *a 1.406,0.396 1.865,0.625 0.458,0.229 10 false 4F 4.823,0.531 5.281,0.76 0.458,0.229 10 false MB 3.875,1.51 4.333,1.74 0.458,0.229 10 false LSR
*a Component without harness connected
(Driver Side Junction Block Assembly) 		- -


a.

Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

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


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
4F-14 - MB-5 (LSR) 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 DRIVER SIDE JUNCTION BLOCK ASSEMBLY

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