RM35X0E _59 Vehicle Exterior _079256 LIGHTING (EXT) _0384398 LIGHTING SYSTEM(w/o Headlight ECU) J

LIGHTING (EXT)  LIGHTING SYSTEM(w/o Headlight ECU)  Taillight Relay Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) controls the operation of the TAIL relay.

WIRING DIAGRAM

E416821E02
0.479,0.74 2.208,1.083 1.729,0.344 10 false from Battery 1.938,0.906 3.208,1.24 1.271,0.333 10 false J/B-ALT 4.479,1.417 4.833,1.646 0.354,0.229 10 false TAIL 5.135,1.25 5.49,1.479 0.354,0.229 10 false TAIL 5.938,0.625 6.365,0.854 0.427,0.229 10 false TRLY 3.698,3.021 5.333,3.417 1.635,0.396 10 false Instrument Panel Junction Block Assembly 5.76,3.667 6.948,4.26 1.188,0.594 10 false Main Body ECU (Multiplex Network Body ECU) 5.802,3.49 6.156,3.719 0.354,0.229 10 false A 5.646,0.635 6,0.865 0.354,0.229 10 false 14 3.313,1.677 3.667,1.906 0.354,0.229 10 false 3C 3.323,1.458 3.677,1.688 0.354,0.229 10 false 32 3.281,2.438 3.635,2.667 0.354,0.229 10 false 3B 3.292,2.24 3.646,2.469 0.354,0.229 10 false 11 0.896,1.677 2.385,2.042 1.49,0.365 10 false to FR FOG Relay*3 and Clearance Lights 3.292,0.74 3.646,0.969 0.354,0.229 10 false 3G 3.344,0.531 3.698,0.76 0.354,0.229 10 false 1 0.188,2.458 2.469,3.354 2.281,0.896 10 false to Taillights and License Plate Lights 0.26,4.271 2.021,4.521 1.76,0.25 10 false *3: w/ Front Fog Light 0.26,3.958 2.021,4.208 1.76,0.25 10 false *2: for RHD 0.26,3.646 2.021,3.896 1.76,0.25 10 false *1: for LHD 2.854,0.74 3.208,0.969 0.354,0.229 10 false 3E 2.906,0.531 3.26,0.76 0.354,0.229 10 false 1 2.875,0.969 3.229,1.198 0.354,0.229 10 false *1 3.313,0.969 3.667,1.198 0.354,0.229 10 false *2

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.


PROCEDURE

1.PERFORM ACTIVE TEST 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 / Active Test.


e.

Perform the Active Test according to the display on the GTS.

Body Electrical > Main Body > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Taillight Relay Taillight relay OFF or ON -
Body Electrical > Main Body > Active Test
Tester Display
Taillight Relay
50004 123 13
OK:

Taillights illuminate.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/o Headlight ECU)>PROBLEM SYMPTOMS TABLE


NG

2.CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BATTERY)
2.CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BATTERY)
a.
E418441C01
1.573,0.396 1.979,0.677 0.406,0.281 1.552,2.573 1.958,2.854 0.406,0.281 1.708,0.469 2.021,0.667 0.313,0.198 10 false 3E 1.667,2.635 1.979,2.833 0.313,0.198 10 false 3G 0.25,0.146 0.563,0.344 0.313,0.198 10 false *a 2.063,0.438 2.375,0.635 0.313,0.198 10 false *A 2.042,2.635 2.354,2.833 0.313,0.198 10 false *B
*A for LHD
*B for RHD
*a Front view of wire harness connector
(to Instrument Panel Junction Block Assembly)


Disconnect the instrument panel junction block assembly connector.


b.

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

Standard Voltage:
for LHD:
Tester Connection Condition Specified Condition
3E-1 - Body ground Always 11 to 14 V

for RHD:
Tester Connection Condition Specified Condition
3G-1 - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

3.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
E416826C02
1.479,0.344 1.844,0.552 0.365,0.208 4.875,0.729 5.25,0.948 0.375,0.219 2.323,2.073 2.688,2.281 0.365,0.208 5.094,2.177 5.458,2.385 0.365,0.208 5.104,1.917 5.469,2.125 0.365,0.208 4.677,1.542 4.844,1.208 false 0.302,0.177 0.615,0.375 0.313,0.198 10 false *a 1.573,0.375 1.885,0.573 0.313,0.198 10 false 3C 2.417,2.104 2.729,2.302 0.313,0.198 10 false 3B 5.021,0.75 5.333,0.948 0.313,0.198 10 false A 4.51,1.563 5.01,1.802 0.5,0.24 10 false TRLY 5.188,2.188 5.5,2.385 0.313,0.198 10 false 3G 5.188,1.938 5.5,2.135 0.313,0.198 10 false 3E 5.531,1.938 5.844,2.135 0.313,0.198 10 false *A 5.552,2.198 5.865,2.396 0.313,0.198 10 false *B
*A for LHD *B for RHD
*a Component without harness connected
(Instrument Panel Junction Block Assembly) 		- -


a.

Remove the instrument panel junction block assembly.

for LHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for LHD)>REMOVAL

for RHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for RHD)>REMOVAL


b.

Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.


c.

Connect a positive (+) lead from the battery to terminal 3E-1*1 or 3G-1*2.

*1: for LHD

*2: for RHD



d.

Connect a negative (-) lead from the battery to terminal A-14 (TRLY).


e.

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

Standard Voltage:
for LHD:
Tester Connection Condition Specified Condition
3C-32 - Battery negative (-) terminal Battery voltage is applied between terminals 3E-1 - A-14 (TRLY) 11 to 14 V
3B-11 - Battery negative (-) terminal Battery voltage is applied between terminals 3E-1 - A-14 (TRLY) 11 to 14 V

for RHD:
Tester Connection Condition Specified Condition
3C-32 - Battery negative (-) terminal Battery voltage is applied between terminals 3G-1 - A-14 (TRLY) 11 to 14 V
3B-11 - Battery negative (-) terminal Battery voltage is applied between terminals 3G-1 - A-14 (TRLY) 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

for LHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for LHD)>REMOVAL

for RHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for RHD)>REMOVAL


NG

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

for LHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for LHD)>REMOVAL

for RHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for RHD)>REMOVAL