RM38T0EC _58 Vehicle Interior _112288 LIGHTING (INT) _0510959 LIGHTING SYSTEM J

LIGHTING (INT)  LIGHTING SYSTEM  Instrument Panel Illumination does not Turn On  


DESCRIPTION

The power distribution box assembly controls the instrument panel illuminations.

WIRING DIAGRAM

E479602E03
5.51,5.948 7.156,6.521 1.646,0.573 10 false Main Body ECU (Multiplex Network Body ECU) 3.135,5.563 5.49,5.854 2.354,0.292 10 false Power Distribution Box Assembly 5.031,1.26 5.344,1.458 0.313,0.198 10 false IC 4.833,1.781 5.146,1.979 0.313,0.198 10 false +B 4.219,2.063 4.531,2.26 0.313,0.198 10 false IPD 3.594,2.302 4.51,2.552 0.917,0.25 10 false PANEL 4.24,4.896 5.979,5.344 1.74,0.448 10 false CXPI Transceiver 2.813,1.271 3.125,1.469 0.313,0.198 10 false 8H 2.865,1.073 3.177,1.271 0.313,0.198 10 false 1 1.635,1.427 2.865,1.635 1.229,0.208 10 false INP STD NO. 2 0.198,1.177 1.083,1.604 0.885,0.427 10 false from Auxiliary Battery 2.813,2.135 3.125,2.333 0.313,0.198 10 false 8F 2.833,1.938 3.146,2.135 0.313,0.198 10 false 9 2.802,4.865 3.115,5.063 0.313,0.198 10 false 8C 2.844,4.667 3.156,4.865 0.313,0.198 10 false 2 0.271,6.344 0.583,6.542 0.313,0.198 10 false A 2.458,6.354 2.771,6.552 0.313,0.198 10 false B 2.365,2.01 2.677,2.208 0.313,0.198 10 false 3 1.979,2.01 2.365,2.281 0.385,0.271 10 false ILL+ 0.615,2.021 1,2.292 0.385,0.271 10 false ILL- 0.344,2.01 0.656,2.208 0.313,0.198 10 false 13 0.438,2.583 0.75,2.781 0.313,0.198 10 false L7 0.427,2.75 2.469,3.167 2.042,0.417 10 false Multiplex Network Master Switch Assembly 1.958,3.344 2.344,3.615 0.385,0.271 10 false ILL+ 0.635,3.365 1.021,3.635 0.385,0.271 10 false ILL- 2.333,3.344 2.646,3.542 0.313,0.198 10 false 12 0.438,3.375 0.75,3.573 0.313,0.198 10 false 1 0.458,3.917 0.771,4.115 0.313,0.198 10 false L11 0.448,4.094 2.802,4.385 2.354,0.292 10 false Outer Mirror Switch Assembly 0.427,4.76 0.74,4.958 0.313,0.198 10 false 1 0.656,4.74 1.042,5.01 0.385,0.271 10 false ILL- 2.406,4.708 2.719,4.906 0.313,0.198 10 false 6 0.479,5.333 0.792,5.531 0.313,0.198 10 false I87 0.49,5.51 2.448,5.99 1.958,0.479 10 false Headlight Leveling Switch 0.75,7.083 3.104,7.375 2.354,0.292 10 false : CXPI Communication Line 1.958,4.74 2.344,5.01 0.385,0.271 10 false ILL+

E500977E03
1.792,0.563 1.948,0.76 0.156,0.198 10 false 1 2.021,0.583 2.365,0.802 0.344,0.219 10 false ILL- 3.354,0.583 3.708,0.792 0.354,0.208 10 false ILL+ 3.771,0.552 3.927,0.75 0.156,0.198 10 false 6 1.948,1.115 2.302,1.323 0.354,0.208 10 false I205 1.938,2.438 4.583,2.635 2.646,0.198 10 false Panoramic View Monitor Switch*2 0.813,0.198 0.969,0.427 0.156,0.229 10 false A 4.802,0.188 4.958,0.417 0.156,0.229 10 false B 1.781,1.74 1.938,1.938 0.156,0.198 10 false 1 1.781,2.896 1.938,3.094 0.156,0.198 10 false 1 2.01,1.75 2.354,1.969 0.344,0.219 10 false ILL- 2.01,2.938 2.354,3.156 0.344,0.219 10 false ILL- 3.344,1.771 3.698,1.979 0.354,0.208 10 false ILL+ 3.344,2.927 3.698,3.135 0.354,0.208 10 false ILL+ 3.781,1.76 3.948,1.938 0.167,0.177 10 false 6 3.771,2.938 3.938,3.115 0.167,0.177 10 false 6 1.938,2.292 2.292,2.5 0.354,0.208 10 false I204 1.938,1.281 4.583,1.479 2.646,0.198 10 false No. 1 Power Back Door Control Switch*1 1.948,3.448 2.302,3.656 0.354,0.208 10 false I52 1.948,3.604 3.781,3.813 1.833,0.208 10 false Auto High Beam Switch*3 4.927,1.688 7.115,1.979 2.188,0.292 10 false *1: w/ Power Back Door System 4.938,2.104 6.844,2.531 1.906,0.427 10 false *2: w/ Panoramic View Monitor System 4.938,2.677 6.844,3.104 1.906,0.427 10 false *3: w/ Toyota Safety Sense 4.948,3.115 6.854,3.542 1.906,0.427 10 false *4: w/ Navigation System 4.938,3.573 6.844,4 1.906,0.427 10 false *5: w/o Navigation System 4.948,4.021 6.74,4.25 1.792,0.229 10 false *6: for HEV Model 1.792,4.094 1.948,4.292 0.156,0.198 10 false 1 1.792,5.271 1.948,5.469 0.156,0.198 10 false 1 2.01,5.292 2.354,5.51 0.344,0.219 10 false ILL- 3.344,4.104 3.698,4.313 0.354,0.208 10 false ILL+ 3.385,5.281 3.74,5.49 0.354,0.208 10 false ILL+ 2.01,4.104 2.354,4.323 0.344,0.219 10 false ILL- 3.76,4.104 3.927,4.281 0.167,0.177 10 false 6 3.75,5.281 3.917,5.458 0.167,0.177 10 false 6 1.948,4.646 3.073,4.823 1.125,0.177 10 false I282 1.958,4.813 3.083,4.99 1.125,0.177 10 false Trip Switch 1.958,5.813 3.083,5.99 1.125,0.177 10 false I283 1.948,5.969 3.719,6.177 1.771,0.208 10 false Fuel Lid Opener Switch*6 1.729,6.458 1.948,6.667 0.219,0.208 10 false 11 3.76,6.469 3.979,6.677 0.219,0.208 10 false 2 2.01,6.458 2.354,6.677 0.344,0.219 10 false LILL 3.375,6.469 3.719,6.688 0.344,0.219 10 false ILLB 1.979,7.01 2.323,7.229 0.344,0.219 10 false T6 1.979,7.177 3.604,7.438 1.625,0.26 10 false Map Light Assembly 2.042,7.75 2.51,7.99 0.469,0.24 10 false GND1 3.375,7.74 3.844,7.979 0.469,0.24 10 false ILL+ 3.385,8.927 3.854,9.167 0.469,0.24 10 false ILL+ 2.042,8.906 2.51,9.146 0.469,0.24 10 false GND1 1.823,7.646 1.979,7.844 0.156,0.198 10 false 1 1.833,8.813 1.99,9.01 0.156,0.198 10 false 1 3.781,7.656 4.042,7.865 0.26,0.208 10 false 25 3.792,8.833 4.052,9.042 0.26,0.208 10 false 25 1.979,8.177 2.323,8.396 0.344,0.219 10 false I253 1.969,8.354 4.792,8.583 2.823,0.229 10 false Radio and Display Receiver Assembly*4 1.969,9.375 2.313,9.594 0.344,0.219 10 false I274 1.958,9.531 4.781,9.76 2.823,0.229 10 false Radio and Display Receiver Assembly*5 0.823,9.604 0.958,9.844 0.135,0.24 10 false C 4.792,9.563 4.927,9.802 0.135,0.24 10 false D

E479574E07
0.917,0.281 1.073,0.479 0.156,0.198 10 false C 4.594,0.302 4.75,0.5 0.156,0.198 10 false D 1.854,1.844 2.115,2.167 0.26,0.323 10 false 2 1.844,2.979 2.115,3.302 0.271,0.323 10 false 14 1.927,4.135 2.083,4.333 0.156,0.198 10 false 1 1.917,0.688 2.26,0.938 0.344,0.25 10 false 6 1.885,5.292 2.229,5.583 0.344,0.292 10 false 1 3.854,6.479 4.188,6.74 0.333,0.26 10 false 6 3.906,0.708 4.135,0.948 0.229,0.24 10 false 9 3.865,1.833 4.146,2.167 0.281,0.333 10 false 4 3.865,2.979 4.021,3.177 0.156,0.198 10 false 8 3.885,4.125 4.094,4.323 0.208,0.198 10 false 4 3.833,5.292 4.042,5.5 0.208,0.208 10 false 4 2.115,0.677 2.531,0.875 0.417,0.198 10 false ILL- 2.104,1.917 2.521,2.115 0.417,0.198 10 false ILL- 2.135,2.979 2.552,3.177 0.417,0.198 10 false ILL- 2.115,4.125 2.531,4.323 0.417,0.198 10 false ILL- 2.073,5.302 2.49,5.5 0.417,0.198 10 false ILL- 3.49,0.688 3.906,0.885 0.417,0.198 10 false ILL+ 3.49,1.938 3.906,2.135 0.417,0.198 10 false ILL+ 3.49,2.99 3.906,3.188 0.417,0.198 10 false ILL+ 3.5,4.135 3.917,4.333 0.417,0.198 10 false ILL+ 1.781,8.219 2.198,8.385 0.417,0.167 10 false I38 1.74,1.052 2.354,1.25 0.615,0.198 10 false I207 1.75,2.26 2.333,2.458 0.583,0.198 10 false I250 2.052,3.5 2.667,3.698 0.615,0.198 10 false I37 2.052,4.656 3.042,4.865 0.99,0.208 10 false I146 2.021,5.833 2.688,6.083 0.667,0.25 10 false I149 1.75,1.25 4.26,1.635 2.51,0.385 10 false Electric Parking Brake Switch Assembly 1.75,2.438 4.281,2.844 2.531,0.406 10 false Shift Position Indicator (Position Indicator Housing Assembly) 2.042,3.667 4.458,3.917 2.417,0.25 10 false Air Conditioning Control Assembly*1 2.031,4.833 4.448,5.083 2.417,0.25 10 false No. 1 Heater Control Sub-Assembly*2 2.01,6 4.688,6.25 2.677,0.25 10 false No. 2 Heater Control Sub-Assembly*2 1.781,8.396 4.365,8.646 2.583,0.25 10 false Hazard Warning Signal Switch Assembly 3.479,5.313 3.896,5.51 0.417,0.198 10 false ILL+ 1.729,6.958 2.344,7.208 0.615,0.25 10 false I147 1.719,7.135 4.479,7.406 2.76,0.271 10 false No. 3 Heater Control Sub-Assembly*2 4.792,3.021 7.104,3.542 2.313,0.521 10 false 1: except Manual Air Conditioning System with Mechanical Control Type 3.49,7.698 3.906,7.896 0.417,0.198 10 false ILL+ 3.479,6.49 3.896,6.688 0.417,0.198 10 false ILL+ 3.885,7.688 4.229,7.979 0.344,0.292 10 false 7 4.781,4.417 7.115,5.104 2.333,0.688 10 false 2: for Manual Air Conditioning System with Mechanical Control Type 2.115,6.5 2.531,6.698 0.417,0.198 10 false ILL- 1.854,6.49 2.198,6.781 0.344,0.292 10 false 10 1.927,7.708 2.271,8 0.344,0.292 10 false 2 2.125,7.698 2.542,7.896 0.417,0.198 10 false ILL- 0.896,8.531 1.052,8.729 0.156,0.198 10 false E 4.594,8.51 4.75,8.708 0.156,0.198 10 false F

E479603E01
1.146,0.583 1.302,0.781 0.156,0.198 10 false E 6.354,0.573 6.51,0.771 0.156,0.198 10 false F 5.021,1.906 5.177,2.104 0.156,0.198 10 false 4 4.625,1.906 4.99,2.177 0.365,0.271 10 false ILL+ 2.729,1.906 3.094,2.177 0.365,0.271 10 false ILL- 2.448,1.896 2.604,2.094 0.156,0.198 10 false 1 2.646,2.708 3.01,2.979 0.365,0.271 10 false I61 2.625,2.875 5.188,3.125 2.563,0.25 10 false Combination Switch Assembly 2.292,3.542 2.656,3.813 0.365,0.271 10 false IL-2 5.208,3.552 5.573,3.823 0.365,0.271 10 false IL+2 1.906,3.677 2.271,3.948 0.365,0.271 10 false I82 1.969,3.469 2.333,3.74 0.365,0.271 10 false 9 5.656,3.677 6.021,3.948 0.365,0.271 10 false I82 5.656,3.469 6.021,3.74 0.365,0.271 10 false 14 4.031,4.115 6.594,4.365 2.563,0.25 10 false Spiral Cable Sub-assembly 2.125,4.969 4.688,5.219 2.563,0.25 10 false Steering Pad Switch Assembly 2.438,4.083 2.802,4.354 0.365,0.271 10 false z3 3.479,4.083 3.844,4.354 0.365,0.271 10 false z3 3.802,4.083 3.958,4.281 0.156,0.198 10 false 1 2.781,4.083 3.146,4.354 0.365,0.271 10 false 6 2.271,4.323 2.635,4.594 0.365,0.271 10 false IL-2 3.646,4.313 4.01,4.583 0.365,0.271 10 false IL+2

CAUTION / NOTICE / HINT

NOTICE:
·

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

·

Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.*1

*1: w/ Smart Entry and Start System




PROCEDURE

1.READ VALUE USING GTS
a.

Turn the light control switch to the TAIL position.


b.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298

OK:

The Data List value displays "OFF".


Result:
Proceed to
OK
NG



OK

2.READ VALUE USING GTS

NG

3.INSPECT OUTER MIRROR SWITCH ASSEMBLY
2.READ VALUE USING GTS
a.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Input Signal Panel light input condition OFF or ON OFF: Light control switch not in tail position
ON: Light control switch in tail position 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Input Signal
50003 475 1295
OK:

The GTS display changes.



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


3.INSPECT OUTER MIRROR SWITCH ASSEMBLY
a.

Disconnect the L11 outer mirror switch assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE OUTER MIRROR SWITCH ASSEMBLY

Click hereVehicle Exterior>MIRROR (EXT)>OUTER MIRROR SWITCH>REMOVAL


NG

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

Disconnect the L7 multiplex network master switch assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Result Proceed to
OK A
NG B



A

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

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


B

5.INSPECT AUTO HIGH BEAM SWITCH
5.INSPECT AUTO HIGH BEAM SWITCH
NOTICE:

For vehicle without automatic high beam system, proceed to next step.


a.

Disconnect the I52 auto high beam switch connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE AUTO HIGH BEAM SWITCH

Click hereADAS / AD>ADVANCED DRIVER ASSISTANCE SYSTEM>AUTOMATIC HIGH BEAM MAIN SWITCH>REMOVAL


NG

6.INSPECT SHIFT POSITION INDICATOR (POSITION INDICATOR HOUSING ASSEMBLY)
6.INSPECT SHIFT POSITION INDICATOR (POSITION INDICATOR HOUSING ASSEMBLY)
a.

Disconnect the I250 shift position indicator (position indicator housing assembly) connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE POSITION INDICATOR HOUSING ASSEMBLY

Click hereDrivetrain>K121 (CVT)>SHIFT LEVER>REMOVAL


NG

7.INSPECT COMBINATION SWITCH ASSEMBLY
7.INSPECT COMBINATION SWITCH ASSEMBLY
a.

Disconnect the I61 combination switch assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE COMBINATION SWITCH ASSEMBLY

Click hereVehicle Interior>INTERIOR PANELS / TRIM>COMBINATION SWITCH>REMOVAL


NG

8.INSPECT ELECTRIC PARKING BRAKE SWTICH ASSEMBLY
8.INSPECT ELECTRIC PARKING BRAKE SWTICH ASSEMBLY
a.

Disconnect the I207 electric parking brake switch assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE ELECTRIC PARKING BRAKE SWTICH ASSEMBLY

Click hereBrake>PARKING BRAKE>ELECTRIC PARKING BRAKE SWITCH>REMOVAL


NG

9.INSPECT HEADLIGHT LEVELING SWITCH
9.INSPECT HEADLIGHT LEVELING SWITCH
a.

Disconnect the I87 Headlight Leveling Switch connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE HEADLIGHT LEVELING SWITCH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT LEVELING SWITCH>REMOVAL


NG

10.CHECK VEHICLE TYPE
10.CHECK VEHICLE TYPE
a.

Check vehicle type.


Result:
Result Proceed to
except Manual Air Conditioning System with Mechanical Control Type A
for Manual Air Conditioning System with Mechanical Control Type B



A

11.INSPECT AIR CONDITIONING CONTROL ASSEMBLY

B

12.INSPECT NO. 1 HEATER CONTROL SUB-ASSEMBLY
11.INSPECT AIR CONDITIONING CONTROL ASSEMBLY
a.

Disconnect the I37 air conditioning control assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING CONTROL ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PANEL (for Mechanical Control Type)>REMOVAL


NG

15.INSPECT SPIRAL CABLE SUB-ASSEMBLY
12.INSPECT NO. 1 HEATER CONTROL SUB-ASSEMBLY
a.

Disconnect the I146 No. 1 heater control sub-assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE NO. 1 HEATER CONTROL SUB-ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PANEL (for Mechanical Control Type)>REMOVAL


NG

13.INSPECT NO. 2 HEATER CONTROL SUB-ASSEMBLY
13.INSPECT NO. 2 HEATER CONTROL SUB-ASSEMBLY
a.

Disconnect the I149 No. 2 heater control sub-assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE NO. 2 HEATER CONTROL SUB-ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PANEL (for Mechanical Control Type)>REMOVAL


NG

14.INSPECT NO. 3 HEATER CONTROL SUB-ASSEMBLY
14.INSPECT NO. 3 HEATER CONTROL SUB-ASSEMBLY
a.

Disconnect the I147 No. 3 heater control sub-assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE NO. 3 HEATER CONTROL SUB-ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PANEL (for Mechanical Control Type)>REMOVAL


NG

15.INSPECT SPIRAL CABLE SUB-ASSEMBLY
15.INSPECT SPIRAL CABLE SUB-ASSEMBLY
a.

Disconnect the I82 spiral cable sub-assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE SPIRAL CABLE SUB-ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>SPIRAL CABLE>REMOVAL


NG

16.INSPECT STEERING PAD SWITCH ASSEMBLY
16.INSPECT STEERING PAD SWITCH ASSEMBLY
a.

Disconnect the z3 steering pad switch assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE STEERING PAD SWITCH ASSEMBLY

Click hereSteering>STEERING COLUMN>STEERING PAD SWITCH>REMOVAL


NG

17.INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY
17.INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY
a.

Disconnect the I38 hazard warning signal switch assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>HAZARD WARNING SWITCH>REMOVAL


NG

18.INSPECT NO. 1 POWER BACK DOOR CONTROL SWITCH
18.INSPECT NO. 1 POWER BACK DOOR CONTROL SWITCH
NOTICE:

For vehicle without power back door system, proceed to next step.


a.

Disconnect the I205 No.1 power back door control switch connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE NO. 1 POWER BACK DOOR CONTROL SWITCH

Click hereVehicle Exterior>DOOR / HATCH>POWER BACK DOOR MAIN SWITCH>REMOVAL


NG

19.CHECK VEHICLE TYPE
19.CHECK VEHICLE TYPE
a.

Check vehicle type.


Result:
Result Proceed to
w/ Navigation System A
w/o Navigation System B



A

20.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

B

21.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY
20.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY
a.

Disconnect the I253 radio and display receiver assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO RECEIVER>REMOVAL


NG

22.INSPECT MAP LIGHT ASSEMBLY
21.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY
a.

Disconnect the I274 radio and display receiver assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO RECEIVER>REMOVAL


NG

22.INSPECT MAP LIGHT ASSEMBLY
22.INSPECT MAP LIGHT ASSEMBLY
a.

Disconnect the T6 map light assembly connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE MAP LIGHT ASSEMBLY

Click hereVehicle Interior>LIGHTING (INT)>PERSONAL LIGHT>REMOVAL


NG

23.INSPECT PANORAMIC VIEW MONITOR SWITCH
23.INSPECT PANORAMIC VIEW MONITOR SWITCH
NOTICE:

For vehicle without panoramic view monitor system, proceed to next step.


a.

Disconnect the I204 panoramic view monitor switch connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE PANORAMIC VIEW MONITOR SWITCH

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>PANORAMIC VIEW MONITOR SWITCH>REMOVAL


NG

24.INSPECT TRIP SWITCH
24.INSPECT TRIP SWITCH
a.

Disconnect the I282 trip switch connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE TRIP SWITCH

Click hereVehicle Interior>METER / GAUGE / DISPLAY>TRIP SWITCH>REMOVAL


NG

25.INSPECT FUEL LID OPENER SWITCH
25.INSPECT FUEL LID OPENER SWITCH
NOTICE:

For vehicle without fuel lid opener switch, proceed to next step.


a.

Disconnect the I283 fuel lid opener switch connector.


b.

Turn the light control switch to the TAIL position.


c.

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

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Panel Light Fuse Shut Off Status Panel Light Fuse condition OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Panel Light Fuse Shut Off Status
50003 475 1298
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE FUEL LID OPENER SWITCH

Click hereVehicle Exterior>DOOR / HATCH>FUEL LID OPENER SWITCH>REMOVAL


NG

26.CHECK HARNESS AND CONNECTOR (EACH SWITCH - POWER DISTRIBUTION BOX ASSEMBLY)
26.CHECK HARNESS AND CONNECTOR (EACH SWITCH - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the L7 multiplex network master switch assembly connector.


b.

Disconnect the L11 outer mirror switch assembly connector.


c.

Disconnect the I52 auto high beam switch connector. (w/ Toyota Safety Sense)


d.

Disconnect the I250 shift position indicator (position indicator housing assembly) connector.


e.

Disconnect the I61 combination switch assembly connector.


f.

Disconnect the I207 electric parking brake switch assembly connector.


g.

Disconnect the I87 headlight leveling switch connector.


h.

Disconnect the I204 panoramic view monitor switch connector.


i.

Disconnect the T6 map light assembly connector.


j.

Disconnect the I37 air conditioning control assembly connector. (Except for Manual Air Conditioning System with PTC Heater)


k.

Disconnect the I146 No. 1 heater control sub-assembly connector. (for Manual Air Conditioning System with PTC Heater)


l.

Disconnect the I149 No. 2 heater control sub-assembly connector. (for Manual Air Conditioning System with PTC Heater)


m.

Disconnect the I147 No. 3 heater control sub-assembly connector. (for Manual Air Conditioning System with PTC Heater)


n.

Disconnect the z3 steering pad switch assembly connector.


o.

Disconnect the I82 spiral cable sub-assembly connector.


p.

Disconnect the I38 hazard warning signal switch assembly connector.


q.

Disconnect the I205 power back door control switch connector. (w/ Power Back Door System)


r.

Disconnect the I253 radio and display receiver assembly connector. (w/ Navigation System)


s.

Disconnect the I282 trip switch connector.


t.

Disconnect the I283 fuel lid opener switch connector. (for HEV Model)


u.

Disconnect the I274 radio and display receiver assembly connector. (w/o Navigation System)


v.

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


w.

Disconnect the 8C and 8F power distribution box assembly connectors.


x.

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

Standard Resistance:
Tester Connection Condition Specified Condition
L7-3 (ILL+) - 8F-9 Always Below 1 Ω
L11-12 (ILL+) - 8F-9 Always Below 1 Ω
I87-6 (ILL+) - 8C-2 Always Below 1 Ω
I205-6 (ILL+) - 8C-2*1 Always Below 1 Ω
I204-6 (ILL+) - 8C-2*2 Always Below 1 Ω
I52-6 (ILL+) - 8C-2*3 Always Below 1 Ω
I253-25 (ILL+) - 8C-2*4 Always Below 1 Ω
I283-6 (ILL+) - 8C-2*8 Always Below 1 Ω
T6-2 (ILLB) - 8C-2 Always Below 1 Ω
I207-9 (ILL+) - 8C-2 Always Below 1 Ω
I250-4 (ILL+) - 8C-2 Always Below 1 Ω
I37-8 (ILL+) - 8C-2*6 Always Below 1 Ω
I146-4 (ILL+) - 8C-2*7 Always Below 1 Ω
I149-4 (ILL+) - 8C-2*7 Always Below 1 Ω
I147-6 (ILL+) - 8C-2*7 Always Below 1 Ω
I38-7 (ILL+) - 8C-2 Always Below 1 Ω
I61-4 (ILL+) - 8C-2 Always Below 1 Ω
I82-14 (IL+2) - 8C-2 Always Below 1 Ω
I282-6 (ILL+) - 8C-2 Always Below 1 Ω
L7-3 (ILL+) or 8F-9 - Body ground Always 10 kΩ or higher
L11-12 (ILL+) or 8F-9 - Body ground Always 10 kΩ or higher
I87-6 (ILL+) or 8C-2 - Body ground Always 10 kΩ or higher
I205-6 (ILL+) or 8C-2 - Body ground*1 Always 10 kΩ or higher
I204-6 (ILL+) or 8C-2 - Body ground*2 Always 10 kΩ or higher
I52-6 (ILL+) or 8C-2 - Body ground*3 Always 10 kΩ or higher
I253-25 (ILL+) or 8C-2 - Body ground*4 Always 10 kΩ or higher
I283-6 (ILL+) or 8C-2 - Body ground*8 Always 10 kΩ or higher
T6-2 (ILLB) or 8C-2 - Body ground Always 10 kΩ or higher
I207-9 (ILL+) or 8C-2 - Body ground Always 10 kΩ or higher
I250-4 (ILL+) or 8C-2 - Body ground Always 10 kΩ or higher
I37-8 (ILL+) or 8C-2 - Body ground*6 Always 10 kΩ or higher
I146-4 (ILL+) or 8C-2 - Body ground*7 Always 10 kΩ or higher
I149-4 (ILL+) or 8C-2 - Body ground*7 Always 10 kΩ or higher
I147-6 (ILL+) or 8C-2 - Body ground*7 Always 10 kΩ or higher
I38-7 (ILL+) or 8C-2 - Body ground Always 10 kΩ or higher
I61-4 (ILL+) or 8C-2 - Body ground Always 10 kΩ or higher
I82-14 (IL+2) or 8C-2 - Body ground Always 10 kΩ or higher
I282-6 (ILL+) or 8C-2 - Body ground Always Below 1 Ω
z3-1 (IL+2) or 8C-2 - Body ground Always 10 kΩ or higher
8C-2 - Body ground Always 10 kΩ or higher
8F-9 - Body ground Always 10 kΩ or higher


*1: w/ Power Back Door System

*2: w/ Panoramic View Monitor System

*3: w/ Toyota Safety Sense

*4: w/ Navigation System

*5: w/o Navigation System

*6: except Manual Air Conditioning System with Mechanical Control Type

*7: for Manual Air Conditioning System with Mechanical Control Type

*8: for HEV Model


Result:
Proceed to
OK
NG




OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR